two-thirds of our normal weekly fix count, but delaying sending these
until -rc7 seemed like a really bad idea.
AFAIK we have no bugs under investigation. One or two reverts for
stuff for which we haven't gotten a proper fix will likely come in
the next PR.
Including fixes from wireles and netfilter.
Current release - fix to a fix:
- netfilter: nft_set_hash: unaligned atomic read on struct nft_set_ext
- eth: gve: trigger RX NAPI instead of TX NAPI in gve_xsk_wakeup
Previous releases - regressions:
- net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets
- mptcp:
- fix sleeping rcvmsg sleeping forever after bad recvbuffer adjust
- fix TCP options overflow
- prevent excessive coalescing on receive, fix throughput
- net: fix memory leak in tcp_conn_request() if map insertion fails
- wifi: cw1200: fix potential NULL dereference after conversion
to GPIO descriptors
- phy: micrel: dynamically control external clock of KSZ PHY,
fix suspend behavior
Previous releases - always broken:
- af_packet: fix VLAN handling with MSG_PEEK
- net: restrict SO_REUSEPORT to inet sockets
- netdev-genl: avoid empty messages in NAPI get
- dsa: microchip: fix set_ageing_time function on KSZ9477 and LAN937X
- eth: gve: XDP fixes around transmit, queue wakeup etc.
- eth: ti: icssg-prueth: fix firmware load sequence to prevent time
jump which breaks timesync related operations
Misc:
- netlink: specs: mptcp: add missing attr and improve documentation
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireles and netfilter.
Nothing major here. Over the last two weeks we gathered only around
two-thirds of our normal weekly fix count, but delaying sending these
until -rc7 seemed like a really bad idea.
AFAIK we have no bugs under investigation. One or two reverts for
stuff for which we haven't gotten a proper fix will likely come in the
next PR.
Current release - fix to a fix:
- netfilter: nft_set_hash: unaligned atomic read on struct
nft_set_ext
- eth: gve: trigger RX NAPI instead of TX NAPI in gve_xsk_wakeup
Previous releases - regressions:
- net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets
- mptcp:
- fix sleeping rcvmsg sleeping forever after bad recvbuffer adjust
- fix TCP options overflow
- prevent excessive coalescing on receive, fix throughput
- net: fix memory leak in tcp_conn_request() if map insertion fails
- wifi: cw1200: fix potential NULL dereference after conversion to
GPIO descriptors
- phy: micrel: dynamically control external clock of KSZ PHY, fix
suspend behavior
Previous releases - always broken:
- af_packet: fix VLAN handling with MSG_PEEK
- net: restrict SO_REUSEPORT to inet sockets
- netdev-genl: avoid empty messages in NAPI get
- dsa: microchip: fix set_ageing_time function on KSZ9477 and LAN937X
- eth:
- gve: XDP fixes around transmit, queue wakeup etc.
- ti: icssg-prueth: fix firmware load sequence to prevent time
jump which breaks timesync related operations
Misc:
- netlink: specs: mptcp: add missing attr and improve documentation"
* tag 'net-6.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (50 commits)
net: ti: icssg-prueth: Fix clearing of IEP_CMP_CFG registers during iep_init
net: ti: icssg-prueth: Fix firmware load sequence.
mptcp: prevent excessive coalescing on receive
mptcp: don't always assume copied data in mptcp_cleanup_rbuf()
mptcp: fix recvbuffer adjust on sleeping rcvmsg
ila: serialize calls to nf_register_net_hooks()
af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK
af_packet: fix vlan_get_tci() vs MSG_PEEK
net: wwan: iosm: Properly check for valid exec stage in ipc_mmio_init()
net: restrict SO_REUSEPORT to inet sockets
net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets
net: sfc: Correct key_len for efx_tc_ct_zone_ht_params
net: wwan: t7xx: Fix FSM command timeout issue
sky2: Add device ID 11ab:4373 for Marvell 88E8075
mptcp: fix TCP options overflow.
net: mv643xx_eth: fix an OF node reference leak
gve: trigger RX NAPI instead of TX NAPI in gve_xsk_wakeup
eth: bcmsysport: fix call balance of priv->clk handling routines
net: llc: reset skb->transport_header
netlink: specs: mptcp: fix missing doc
...
- Use str_yes_no() helper function
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Merge tag 'nios2_update_for_v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux
Pull nios2 fixlet from Dinh Nguyen:
- Use str_yes_no() helper function
* tag 'nios2_update_for_v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
nios2: Use str_yes_no() helper in show_cpuinfo()
Alot of fixes accumulated over the holiday break:
- Static tool fixes, value is already proven to be NULL, possible integer
overflow
- Many bnxt_re fixes:
* Crashes due to a mismatch in the maximum SGE list size
* Don't waste memory for user QPs by creating kernel-only structures
* Fix compatability issues with older HW in some of the new HW features
recently introduced: RTS->RTS feature, work around 9096
* Do not allow destroy_qp to fail
* Validate QP MTU against device limits
* Add missing validation on madatory QP attributes for RTR->RTS
* Report port_num in query_qp as required by the spec
* Fix creation of QPs of the maximum queue size, and in the variable mode
* Allow all QPs to be used on newer HW by limiting a work around only to
HW it affects
* Use the correct MSN table size for variable mode QPs
* Add missing locking in create_qp() accessing the qp_tbl
* Form WQE buffers correctly when some of the buffers are 0 hop
* Don't crash on QP destroy if the userspace doesn't setup the dip_ctx
* Add the missing QP flush handler call on the DWQE path to avoid
hanging on error recovery
* Consistently use ENXIO for return codes if the devices is fatally errored
- Try again to fix VLAN support on iwarp, previous fix was reverted due to
breaking other cards
- Correct error path return code for rdma netlink events
- Remove the seperate net_device pointer in siw and rxe which syzkaller
found a way to UAF
- Fix a UAF of a stack ib_sge in rtrs
- Fix a regression where old mlx5 devices and FW were wrongly activing
new device features and failing
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"A lot of fixes accumulated over the holiday break:
- Static tool fixes, value is already proven to be NULL, possible
integer overflow
- Many bnxt_re fixes:
- Crashes due to a mismatch in the maximum SGE list size
- Don't waste memory for user QPs by creating kernel-only
structures
- Fix compatability issues with older HW in some of the new HW
features recently introduced: RTS->RTS feature, work around 9096
- Do not allow destroy_qp to fail
- Validate QP MTU against device limits
- Add missing validation on madatory QP attributes for RTR->RTS
- Report port_num in query_qp as required by the spec
- Fix creation of QPs of the maximum queue size, and in the
variable mode
- Allow all QPs to be used on newer HW by limiting a work around
only to HW it affects
- Use the correct MSN table size for variable mode QPs
- Add missing locking in create_qp() accessing the qp_tbl
- Form WQE buffers correctly when some of the buffers are 0 hop
- Don't crash on QP destroy if the userspace doesn't setup the
dip_ctx
- Add the missing QP flush handler call on the DWQE path to avoid
hanging on error recovery
- Consistently use ENXIO for return codes if the devices is
fatally errored
- Try again to fix VLAN support on iwarp, previous fix was reverted
due to breaking other cards
- Correct error path return code for rdma netlink events
- Remove the seperate net_device pointer in siw and rxe which
syzkaller found a way to UAF
- Fix a UAF of a stack ib_sge in rtrs
- Fix a regression where old mlx5 devices and FW were wrongly
activing new device features and failing"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (28 commits)
RDMA/mlx5: Enable multiplane mode only when it is supported
RDMA/bnxt_re: Fix error recovery sequence
RDMA/rtrs: Ensure 'ib_sge list' is accessible
RDMA/rxe: Remove the direct link to net_device
RDMA/hns: Fix missing flush CQE for DWQE
RDMA/hns: Fix warning storm caused by invalid input in IO path
RDMA/hns: Fix accessing invalid dip_ctx during destroying QP
RDMA/hns: Fix mapping error of zero-hop WQE buffer
RDMA/bnxt_re: Fix the locking while accessing the QP table
RDMA/bnxt_re: Fix MSN table size for variable wqe mode
RDMA/bnxt_re: Add send queue size check for variable wqe
RDMA/bnxt_re: Disable use of reserved wqes
RDMA/bnxt_re: Fix max_qp_wrs reported
RDMA/siw: Remove direct link to net_device
RDMA/nldev: Set error code in rdma_nl_notify_event
RDMA/bnxt_re: Fix reporting hw_ver in query_device
RDMA/bnxt_re: Fix to export port num to ib_query_qp
RDMA/bnxt_re: Fix setting mandatory attributes for modify_qp
RDMA/bnxt_re: Add check for path mtu in modify_qp
RDMA/bnxt_re: Fix the check for 9060 condition
...
- A small Kconfig fixup for the i.MX, in principle this
could come in from the SoC tree but the bug was introduced
from the pin control tree so let's fix it from here.
- Fix a sleep in atomic context in the MCP23xxx GPIO expander
by disabling the regmap locking and using explicit
mutex locks.
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Merge tag 'pinctrl-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- A small Kconfig fixup for the i.MX.
In principle this could come in from the SoC tree but the bug was
introduced from the pin control tree so let's fix it from here.
- Fix a sleep in atomic context in the MCP23xxx GPIO expander by
disabling the regmap locking and using explicit mutex locks.
* tag 'pinctrl-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: mcp23s08: Fix sleeping in atomic context due to regmap locking
ARM: imx: Re-introduce the PINCTRL selection
The first new year PR: no surprise, all small fixes, including:
- Follow-up fixes for the new compress-offload API extension
- A couple of fixes for MIDI 2.0 UMP handling
- A trivial race fix for OSS sequencer emulation ioctls
- USB-audio and HD-audio fixes / quirks
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Merge tag 'sound-6.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The first new year pull request: no surprises, all small fixes,
including:
- Follow-up fixes for the new compress-offload API extension
- A couple of fixes for MIDI 2.0 UMP handling
- A trivial race fix for OSS sequencer emulation ioctls
- USB-audio and HD-audio fixes / quirks"
* tag 'sound-6.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: seq: Check UMP support for midi_version change
ALSA hda/realtek: Add quirk for Framework F111:000C
Revert "ALSA: ump: Don't enumeration invalid groups for legacy rawmidi"
ALSA: seq: oss: Fix races at processing SysEx messages
ALSA: compress_offload: fix remaining descriptor races in sound/core/compress_offload.c
ALSA: compress_offload: Drop unneeded no_free_ptr()
ALSA: hda/tas2781: Ignore SUBSYS_ID not found for tas2563 projects
ALSA: usb-audio: US16x08: Initialize array before use
i915:
- Fix C10 pll programming sequence [cx0_phy]
- Fix power gate sequence. [dg1]
xe:
- uapi: Revert some devcoredump file format changes
breaking a mesa debug tool
- Fixes around waits when moving to system
- Fix a typo when checking for LMEM provisioning
- Fix a fault on fd close after unbind
- A couple of OA fixes squashed for stable backporting
adv7511:
- fix UAF
- drop single lane support
- audio infoframe fix
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Merge tag 'drm-fixes-2025-01-03' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Happy New Year.
It was fairly quiet for holidays period, certainly nothing that worth
getting off the couch before I needed to, this is for the past two
weeks, i915, xe and some adv7511, I expect we will see some amdgpu etc
happening next week, but otherwise all quiet.
i915:
- Fix C10 pll programming sequence [cx0_phy]
- Fix power gate sequence. [dg1]
xe:
- uapi: Revert some devcoredump file format changes breaking a mesa
debug tool
- Fixes around waits when moving to system
- Fix a typo when checking for LMEM provisioning
- Fix a fault on fd close after unbind
- A couple of OA fixes squashed for stable backporting
adv7511:
- fix UAF
- drop single lane support
- audio infoframe fix"
* tag 'drm-fixes-2025-01-03' of https://gitlab.freedesktop.org/drm/kernel:
xe/oa: Fix query mode of operation for OAR/OAC
drm/i915/dg1: Fix power gate sequence.
drm/i915/cx0_phy: Fix C10 pll programming sequence
drm/xe: Fix fault on fd close after unbind
drm/xe/pf: Use correct function to check LMEM provisioning
drm/xe: Wait for migration job before unmapping pages
drm/xe: Use non-interruptible wait when moving BO to system
drm/xe: Revert some changes that break a mesa debug tool
drm: adv7511: Drop dsi single lane support
dt-bindings: display: adi,adv7533: Drop single lane support
drm: adv7511: Fix use-after-free in adv7533_attach_dsi()
drm/bridge: adv7511_audio: Update Audio InfoFrame properly
- Add needed READ_ONCE() around access to the fgraph array element
The updates to the fgraph array can happen when callbacks are registered
and unregistered. The __ftrace_return_to_handler() can handle reading
either the old value or the new value. But once it reads that value
it must stay consistent otherwise the check that looks to see if the
value is a stub may show false, but if the compiler decides to re-read
after that check, it can be true which can cause the code to crash
later on.
- Make function profiler use the top level ops for filtering again
When function graph became available for instances, its filter ops became
independent from the top level set_ftrace_filter. In the process the
function profiler received its own filter ops as well. But the function
profiler uses the top level set_ftrace_filter file and does not have one
of its own. In giving it its own filter ops, it lost any user interface
it once had. Make it use the top level set_ftrace_filter file again.
This fixes a regression.
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Merge tag 'ftrace-v6.13-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull ftrace fixes from Steven Rostedt:
- Add needed READ_ONCE() around access to the fgraph array element
The updates to the fgraph array can happen when callbacks are
registered and unregistered. The __ftrace_return_to_handler() can
handle reading either the old value or the new value. But once it
reads that value it must stay consistent otherwise the check that
looks to see if the value is a stub may show false, but if the
compiler decides to re-read after that check, it can be true which
can cause the code to crash later on.
- Make function profiler use the top level ops for filtering again
When function graph became available for instances, its filter ops
became independent from the top level set_ftrace_filter. In the
process the function profiler received its own filter ops as well.
But the function profiler uses the top level set_ftrace_filter file
and does not have one of its own. In giving it its own filter ops, it
lost any user interface it once had. Make it use the top level
set_ftrace_filter file again. This fixes a regression.
* tag 'ftrace-v6.13-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ftrace: Fix function profiler's filtering functionality
fgraph: Add READ_ONCE() when accessing fgraph_array[]
Meghana Malladi says:
====================
IEP clock module bug fixes
This series has some bug fixes for IEP module needed by PPS and
timesync operations.
Patch 1/2 fixes firmware load sequence to run all the firmwares
when either of the ethernet interfaces is up. Move all the code
common for firmware bringup under common functions.
Patch 2/2 fixes distorted PPS signal when the ethernet interfaces
are brough down and up. This patch also fixes enabling PPS signal
after bringing the interface up, without disabling PPS.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When ICSSG interfaces are brought down and brought up again, the
pru cores are shut down and booted again, flushing out all the memories
and start again in a clean state. Hence it is expected that the
IEP_CMP_CFG register needs to be flushed during iep_init() to ensure
that the existing residual configuration doesn't cause any unusual
behavior. If the register is not cleared, existing IEP_CMP_CFG set for
CMP1 will result in SYNC0_OUT signal based on the SYNC_OUT register values.
After bringing the interface up, calling PPS enable doesn't work as
the driver believes PPS is already enabled, (iep->pps_enabled is not
cleared during interface bring down) and driver will just return true
even though there is no signal. Fix this by disabling pps and perout.
Fixes: c1e0230eeaab ("net: ti: icss-iep: Add IEP driver")
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Timesync related operations are ran in PRU0 cores for both ICSSG SLICE0
and SLICE1. Currently whenever any ICSSG interface comes up we load the
respective firmwares to PRU cores and whenever interface goes down, we
stop the resective cores. Due to this, when SLICE0 goes down while
SLICE1 is still active, PRU0 firmwares are unloaded and PRU0 core is
stopped. This results in clock jump for SLICE1 interface as the timesync
related operations are no longer running.
As there are interdependencies between SLICE0 and SLICE1 firmwares,
fix this by running both PRU0 and PRU1 firmwares as long as at least 1
ICSSG interface is up. Add new flag in prueth struct to check if all
firmwares are running and remove the old flag (fw_running).
Use emacs_initialized as reference count to load the firmwares for the
first and last interface up/down. Moving init_emac_mode and fw_offload_mode
API outside of icssg_config to icssg_common_start API as they need
to be called only once per firmware boot.
Change prueth_emac_restart() to return error code and add error prints
inside the caller of this functions in case of any failures.
Move prueth_emac_stop() from common to sr1 driver.
sr1 and sr2 drivers have different logic handling for stopping
the firmwares. While sr1 driver is dependent on emac structure
to stop the corresponding pru cores for that slice, for sr2
all the pru cores of both the slices are stopped and is not
dependent on emac. So the prueth_emac_stop() function is no
longer common and can be moved to sr1 driver.
Fixes: c1e0230eeaab ("net: ti: icss-iep: Add IEP driver")
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Matthieu Baerts says:
====================
mptcp: rx path fixes
Here are 3 different fixes, all related to the MPTCP receive buffer:
- Patch 1: fix receive buffer space when recvmsg() blocks after
receiving some data. For a fix introduced in v6.12, backported to
v6.1.
- Patch 2: mptcp_cleanup_rbuf() can be called when no data has been
copied. For 5.11.
- Patch 3: prevent excessive coalescing on receive, which can affect the
throughput badly. It looks better to wait a bit before backporting
this one to stable versions, to get more results. For 5.10.
====================
Link: https://patch.msgid.link/20241230-net-mptcp-rbuf-fixes-v1-0-8608af434ceb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently the skb size after coalescing is only limited by the skb
layout (the skb must not carry frag_list). A single coalesced skb
covering several MSS can potentially fill completely the receive
buffer. In such a case, the snd win will zero until the receive buffer
will be empty again, affecting tput badly.
Fixes: 8268ed4c9d19 ("mptcp: introduce and use mptcp_try_coalesce()")
Cc: stable@vger.kernel.org # please delay 2 weeks after 6.13-final release
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20241230-net-mptcp-rbuf-fixes-v1-3-8608af434ceb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Under some corner cases the MPTCP protocol can end-up invoking
mptcp_cleanup_rbuf() when no data has been copied, but such helper
assumes the opposite condition.
Explicitly drop such assumption and performs the costly call only
when strictly needed - before releasing the msk socket lock.
Fixes: fd8976790a6c ("mptcp: be careful on MPTCP-level ack.")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20241230-net-mptcp-rbuf-fixes-v1-2-8608af434ceb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If the recvmsg() blocks after receiving some data - i.e. due to
SO_RCVLOWAT - the MPTCP code will attempt multiple times to
adjust the receive buffer size, wrongly accounting every time the
cumulative of received data - instead of accounting only for the
delta.
Address the issue moving mptcp_rcv_space_adjust just after the
data reception and passing it only the just received bytes.
This also removes an unneeded difference between the TCP and MPTCP
RX code path implementation.
Fixes: 581302298524 ("mptcp: error out earlier on disconnect")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20241230-net-mptcp-rbuf-fixes-v1-1-8608af434ceb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
ipc_mmio_init() used the post-decrement operator in its loop continuing
condition of "retries" counter being "> 0", which meant that when this
condition caused loop exit "retries" counter reached -1.
But the later valid exec stage failure check only tests for "retries"
counter being exactly zero, so it didn't trigger in this case (but
would wrongly trigger if the code reaches a valid exec stage in the
very last loop iteration).
Fix this by using the pre-decrement operator instead, so the loop counter
is exactly zero on valid exec stage failure.
Fixes: dc0514f5d828 ("net: iosm: mmio scratchpad")
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Link: https://patch.msgid.link/8b19125a825f9dcdd81c667c1e5c48ba28d505a6.1735490770.git.mail@maciej.szmigiero.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The blamed commit disabled hardware offoad of IPv6 packets with
extension headers on devices that advertise NETIF_F_IPV6_CSUM,
based on the definition of that feature in skbuff.h:
* * - %NETIF_F_IPV6_CSUM
* - Driver (device) is only able to checksum plain
* TCP or UDP packets over IPv6. These are specifically
* unencapsulated packets of the form IPv6|TCP or
* IPv6|UDP where the Next Header field in the IPv6
* header is either TCP or UDP. IPv6 extension headers
* are not supported with this feature. This feature
* cannot be set in features for a device with
* NETIF_F_HW_CSUM also set. This feature is being
* DEPRECATED (see below).
The change causes skb_warn_bad_offload to fire for BIG TCP
packets.
[ 496.310233] WARNING: CPU: 13 PID: 23472 at net/core/dev.c:3129 skb_warn_bad_offload+0xc4/0xe0
[ 496.310297] ? skb_warn_bad_offload+0xc4/0xe0
[ 496.310300] skb_checksum_help+0x129/0x1f0
[ 496.310303] skb_csum_hwoffload_help+0x150/0x1b0
[ 496.310306] validate_xmit_skb+0x159/0x270
[ 496.310309] validate_xmit_skb_list+0x41/0x70
[ 496.310312] sch_direct_xmit+0x5c/0x250
[ 496.310317] __qdisc_run+0x388/0x620
BIG TCP introduced an IPV6_TLV_JUMBO IPv6 extension header to
communicate packet length, as this is an IPv6 jumbogram. But, the
feature is only enabled on devices that support BIG TCP TSO. The
header is only present for PF_PACKET taps like tcpdump, and not
transmitted by physical devices.
For this specific case of extension headers that are not
transmitted, return to the situation before the blamed commit
and support hardware offload.
ipv6_has_hopopt_jumbo() tests not only whether this header is present,
but also that it is the only extension header before a terminal (L4)
header.
Fixes: 04c20a9356f2 ("net: skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Closes: https://lore.kernel.org/netdev/CANn89iK1hdC3Nt8KPhOtTF8vCPc1AHDCtse_BTNki1pWxAByTQ@mail.gmail.com/
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250101164909.1331680-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In efx_tc_ct_zone_ht_params, the key_len was previously set to
offsetof(struct efx_tc_ct_zone, linkage). This calculation is incorrect
because it includes any padding between the zone field and the linkage
field due to structure alignment, which can vary between systems.
This patch updates key_len to use sizeof_field(struct efx_tc_ct_zone, zone)
, ensuring that the hash table correctly uses the zone as the key. This fix
prevents potential hash lookup errors and improves connection tracking
reliability.
Fixes: c3bb5c6acd4e ("sfc: functions to register for conntrack zone offload")
Signed-off-by: Liang Jie <liangjie@lixiang.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20241230093709.3226854-1-buaajxlj@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
UAPI Changes:
- Revert some devcoredump file format changes
breaking a mesa debug tool (John)
Driver Changes:
- Fixes around waits when moving to system (Nirmoy)
- Fix a typo when checking for LMEM provisioning (Michal)
- Fix a fault on fd close after unbind (Lucas)
- A couple of OA fixes squashed for stable backporting (Umesh)
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Merge tag 'drm-xe-fixes-2025-01-02' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- A couple of OA fixes squashed for stable backporting (Umesh)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Z3bur0RmH6-70YSh@fedora
- Revert some devcoredump file format changes
breaking a mesa debug tool (John)
Driver Changes:
- Fixes around waits when moving to system (Nirmoy)
- Fix a typo when checking for LMEM provisioning (Michal)
- Fix a fault on fd close after unbind (Lucas)
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Merge tag 'drm-xe-fixes-2024-12-23' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
UAPI Changes:
- Revert some devcoredump file format changes
breaking a mesa debug tool (John)
Driver Changes:
- Fixes around waits when moving to system (Nirmoy)
- Fix a typo when checking for LMEM provisioning (Michal)
- Fix a fault on fd close after unbind (Lucas)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Z2mjt7OTfH76cgua@fedora
Commit c132be2c4fcc ("function_graph: Have the instances use their own
ftrace_ops for filtering"), function profiler (enabled via
function_profile_enabled) has been showing statistics for all functions,
ignoring set_ftrace_filter settings.
While tracers are instantiated, the function profiler is not. Therefore, it
should use the global set_ftrace_filter for consistency. This patch
modifies the function profiler to use the global filter, fixing the
filtering functionality.
Before (filtering not working):
```
root@localhost:~# echo 'vfs*' > /sys/kernel/tracing/set_ftrace_filter
root@localhost:~# echo 1 > /sys/kernel/tracing/function_profile_enabled
root@localhost:~# sleep 1
root@localhost:~# echo 0 > /sys/kernel/tracing/function_profile_enabled
root@localhost:~# head /sys/kernel/tracing/trace_stat/*
Function Hit Time Avg
s^2
-------- --- ---- ---
---
schedule 314 22290594 us 70989.15 us
40372231 us
x64_sys_call 1527 8762510 us 5738.382 us
3414354 us
schedule_hrtimeout_range 176 8665356 us 49234.98 us
405618876 us
__x64_sys_ppoll 324 5656635 us 17458.75 us
19203976 us
do_sys_poll 324 5653747 us 17449.83 us
19214945 us
schedule_timeout 67 5531396 us 82558.15 us
2136740827 us
__x64_sys_pselect6 12 3029540 us 252461.7 us
63296940171 us
do_pselect.constprop.0 12 3029532 us 252461.0 us
63296952931 us
```
After (filtering working):
```
root@localhost:~# echo 'vfs*' > /sys/kernel/tracing/set_ftrace_filter
root@localhost:~# echo 1 > /sys/kernel/tracing/function_profile_enabled
root@localhost:~# sleep 1
root@localhost:~# echo 0 > /sys/kernel/tracing/function_profile_enabled
root@localhost:~# head /sys/kernel/tracing/trace_stat/*
Function Hit Time Avg
s^2
-------- --- ---- ---
---
vfs_write 462 68476.43 us 148.217 us
25874.48 us
vfs_read 641 9611.356 us 14.994 us
28868.07 us
vfs_fstat 890 878.094 us 0.986 us
1.667 us
vfs_fstatat 227 757.176 us 3.335 us
18.928 us
vfs_statx 226 610.610 us 2.701 us
17.749 us
vfs_getattr_nosec 1187 460.919 us 0.388 us
0.326 us
vfs_statx_path 297 343.287 us 1.155 us
11.116 us
vfs_rename 6 291.575 us 48.595 us
9889.236 us
```
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/20250101190820.72534-1-enjuk@amazon.com
Fixes: c132be2c4fcc ("function_graph: Have the instances use their own ftrace_ops for filtering")
Signed-off-by: Kohei Enju <enjuk@amazon.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
In __ftrace_return_to_handler(), a loop iterates over the fgraph_array[]
elements, which are fgraph_ops. The loop checks if an element is a
fgraph_stub to prevent using a fgraph_stub afterward.
However, if the compiler reloads fgraph_array[] after this check, it might
race with an update to fgraph_array[] that introduces a fgraph_stub. This
could result in the stub being processed, but the stub contains a null
"func_hash" field, leading to a NULL pointer dereference.
To ensure that the gops compared against the fgraph_stub matches the gops
processed later, add a READ_ONCE(). A similar patch appears in commit
63a8dfb ("function_graph: Add READ_ONCE() when accessing fgraph_array[]").
Cc: stable@vger.kernel.org
Fixes: 37238abe3cb47 ("ftrace/function_graph: Pass fgraph_ops to function graph callbacks")
Link: https://lore.kernel.org/20241231113731.277668-1-zilin@seu.edu.cn
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
I haven't been an active participant for a couple of years now, and
after discussions at Linux Plumbers in 2024, Arnd is getting fresh help
from a few more participants.
It's time to remove myself, and spare myself from patches and pull
requests in my inbox.
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Silence warning by adding a dummy release function
pmdomain providers:
- imx: Fix an OF node reference leak in imx_gpcv2_probe()
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Merge tag 'pmdomain-v6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain fixes from Ulf Hansson:
- Silence warning by adding a dummy release function
- imx: Fix an OF node reference leak in imx_gpcv2_probe()
* tag 'pmdomain-v6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
pmdomain: core: add dummy release function to genpd device
pmdomain: imx: gpcv2: fix an OF node reference leak in imx_gpcv2_probe()
This is a set of squashed commits to facilitate smooth applying to
stable. Each commit message is retained for reference.
1) Allow a GGTT mapped batch to be submitted to user exec queue
For a OA use case, one of the HW registers needs to be modified by
submitting an MI_LOAD_REGISTER_IMM command to the users exec queue, so
that the register is modified in the user's hardware context. In order
to do this a batch that is mapped in GGTT, needs to be submitted to the
user exec queue. Since all user submissions use q->vm and hence PPGTT,
add some plumbing to enable submission of batches mapped in GGTT.
v2: ggtt is zero-initialized, so no need to set it false (Matt Brost)
2) xe/oa: Use MI_LOAD_REGISTER_IMMEDIATE to enable OAR/OAC
To enable OAR/OAC, a bit in RING_CONTEXT_CONTROL needs to be set.
Setting this bit cause the context image size to change and if not done
correct, can cause undesired hangs.
Current code uses a separate exec_queue to modify this bit and is
error-prone. As per HW recommendation, submit MI_LOAD_REGISTER_IMM to
the target hardware context to modify the relevant bit.
In v2 version, an attempt to submit everything to the user-queue was
made, but it failed the unprivileged-single-ctx-counters test. It
appears that the OACTXCONTROL must be modified from a remote context.
In v3 version, all context specific register configurations were moved
to use LOAD_REGISTER_IMMEDIATE and that seems to work well. This is a
cleaner way, since we can now submit all configuration to user
exec_queue and the fence handling is simplified.
v2:
(Matt)
- set job->ggtt to true if create job is successful
- unlock vm on job error
(Ashutosh)
- don't wait on job submission
- use kernel exec queue where possible
v3:
(Ashutosh)
- Fix checkpatch issues
- Remove extra spaces/new-lines
- Add Fixes: and Cc: tags
- Reset context control bit when OA stream is closed
- Submit all config via MI_LOAD_REGISTER_IMMEDIATE
(Umesh)
- Update commit message for v3 experiment
- Squash patches for easier port to stable
v4:
(Ashutosh)
- No need to pass q to xe_oa_submit_bb
- Do not support exec queues with width > 1
- Fix disabling of CTX_CTRL_OAC_CONTEXT_ENABLE
v5:
(Ashutosh)
- Drop reg_lri related comments
- Use XE_OA_SUBMIT_NO_DEPS in xe_oa_load_with_lri
Fixes: 8135f1c09dd2 ("drm/xe/oa: Don't reset OAC_CONTEXT_ENABLE on OA stream close")
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com> # commit 1
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241220171919.571528-2-umesh.nerlige.ramappa@intel.com
(cherry picked from commit 55039832f98c7e05f1cf9e0d8c12b2490abd0f16)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
- Fix trace event string check when dealing with array of strings
The xe_bo_move event has a field that indexes into an array of
strings. The TP_fast_assign() added the index into the ring buffer
and the TP_printk() had a "%s" that referenced the array using the
index in the ring buffer. This is a legitimate use of "%s" in
trace events. But this triggered a false positive in the
test_event_printk() at boot saying that the string was dangerous.
Change the check to allow arrays using fields in the ring buffer
as an index to be considered a safe string.
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Merge tag 'trace-v6.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fix from Steven Rostedt:
"Fix trace event string check when dealing with array of strings
The xe_bo_move event has a field that indexes into an array of
strings. The TP_fast_assign() added the index into the ring buffer and
the TP_printk() had a "%s" that referenced the array using the index
in the ring buffer. This is a legitimate use of "%s" in trace events.
But this triggered a false positive in the test_event_printk() at boot
saying that the string was dangerous.
Change the check to allow arrays using fields in the ring buffer as an
index to be considered a safe string"
* tag 'trace-v6.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Have process_string() also allow arrays
When the kernel is built without UMP support but a user-space app
requires the midi_version > 0, the kernel should return an error.
Otherwise user-space assumes as if it were possible to deal,
eventually hitting serious errors later.
Fixes: 46397622a3fa ("ALSA: seq: Add UMP support")
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20241231145358.21946-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fixed to return ENXIO from __send_message_basic_sanity()
to indicate that device is in error state. In the case of
ERR_DEVICE_DETACHED state, the driver should not post the
commands to the firmware as it will time out eventually.
Removed bnxt_re_modify_qp() call from bnxt_re_dev_stop()
as it is a no-op.
Fixes: cc5b9b48d447 ("RDMA/bnxt_re: Recover the device when FW error is detected")
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Link: https://patch.msgid.link/20241231025008.2267162-1-kalesh-anakkur.purayil@broadcom.com
Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Move the declaration of the 'ib_sge list' variable outside the
'always_invalidate' block to ensure it remains accessible for use
throughout the function.
Previously, 'ib_sge list' was declared within the 'always_invalidate'
block, limiting its accessibility, then caused a
'BUG: kernel NULL pointer dereference'[1].
? __die_body.cold+0x19/0x27
? page_fault_oops+0x15a/0x2d0
? search_module_extables+0x19/0x60
? search_bpf_extables+0x5f/0x80
? exc_page_fault+0x7e/0x180
? asm_exc_page_fault+0x26/0x30
? memcpy_orig+0xd5/0x140
rxe_mr_copy+0x1c3/0x200 [rdma_rxe]
? rxe_pool_get_index+0x4b/0x80 [rdma_rxe]
copy_data+0xa5/0x230 [rdma_rxe]
rxe_requester+0xd9b/0xf70 [rdma_rxe]
? finish_task_switch.isra.0+0x99/0x2e0
rxe_sender+0x13/0x40 [rdma_rxe]
do_task+0x68/0x1e0 [rdma_rxe]
process_one_work+0x177/0x330
worker_thread+0x252/0x390
? __pfx_worker_thread+0x10/0x10
This change ensures the variable is available for subsequent operations
that require it.
[1] https://lore.kernel.org/linux-rdma/6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com/
Fixes: 9cb837480424 ("RDMA/rtrs: server: main functionality")
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Link: https://patch.msgid.link/20241231013416.1290920-1-lizhijian@fujitsu.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Similar to commit eb91c456f371
("ALSA: hda/realtek: Add Framework Laptop 13 (Intel Core Ultra) to quirks")
and previous quirks for Framework systems with
Realtek codecs.
000C is a new platform that will also have an ALC285 codec and needs the
same quirk.
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: linux@frame.work
Cc: Dustin L. Howett <dustin@howett.net>
Signed-off-by: Daniel Schaefer <dhs@frame.work>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20241231045958.14545-1-dhs@frame.work
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In order to catch a common bug where a TRACE_EVENT() TP_fast_assign()
assigns an address of an allocated string to the ring buffer and then
references it in TP_printk(), which can be executed hours later when the
string is free, the function test_event_printk() runs on all events as
they are registered to make sure there's no unwanted dereferencing.
It calls process_string() to handle cases in TP_printk() format that has
"%s". It returns whether or not the string is safe. But it can have some
false positives.
For instance, xe_bo_move() has:
TP_printk("move_lacks_source:%s, migrate object %p [size %zu] from %s to %s device_id:%s",
__entry->move_lacks_source ? "yes" : "no", __entry->bo, __entry->size,
xe_mem_type_to_name[__entry->old_placement],
xe_mem_type_to_name[__entry->new_placement], __get_str(device_id))
Where the "%s" references into xe_mem_type_to_name[]. This is an array of
pointers that should be safe for the event to access. Instead of flagging
this as a bad reference, if a reference points to an array, where the
record field is the index, consider it safe.
Link: https://lore.kernel.org/all/9dee19b6185d325d0e6fa5f7cbba81d007d99166.camel@sapience.com/
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20241231000646.324fb5f7@gandalf.local.home
Fixes: 65a25d9f7ac02 ("tracing: Add "%s" check in test_event_printk()")
Reported-by: Genes Lists <lists@sapience.com>
Tested-by: Gene C <arch@sapience.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
When driver processes the internal state change command, it use an
asynchronous thread to process the command operation. If the main
thread detects that the task has timed out, the asynchronous thread
will panic when executing the completion notification because the
main thread completion object has been released.
BUG: unable to handle page fault for address: fffffffffffffff8
PGD 1f283a067 P4D 1f283a067 PUD 1f283c067 PMD 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
RIP: 0010:complete_all+0x3e/0xa0
[...]
Call Trace:
<TASK>
? __die_body+0x68/0xb0
? page_fault_oops+0x379/0x3e0
? exc_page_fault+0x69/0xa0
? asm_exc_page_fault+0x22/0x30
? complete_all+0x3e/0xa0
fsm_main_thread+0xa3/0x9c0 [mtk_t7xx (HASH:1400 5)]
? __pfx_autoremove_wake_function+0x10/0x10
kthread+0xd8/0x110
? __pfx_fsm_main_thread+0x10/0x10 [mtk_t7xx (HASH:1400 5)]
? __pfx_kthread+0x10/0x10
ret_from_fork+0x38/0x50
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1b/0x30
</TASK>
[...]
CR2: fffffffffffffff8
---[ end trace 0000000000000000 ]---
Use the reference counter to ensure safe release as Sergey suggests:
https://lore.kernel.org/all/da90f64c-260a-4329-87bf-1f9ff20a5951@gmail.com/
Fixes: 13e920d93e37 ("net: wwan: t7xx: Add core components")
Signed-off-by: Jinjian Song <jinjian.song@fibocom.com>
Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Link: https://patch.msgid.link/20241224041552.8711-1-jinjian.song@fibocom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current implementation of mv643xx_eth_shared_of_add_port() calls
of_parse_phandle(), but does not release the refcount on error. Call
of_node_put() in the error path and in mv643xx_eth_shared_of_remove().
This bug was found by an experimental verification tool that I am
developing.
Fixes: 76723bca2802 ("net: mv643xx_eth: add DT parsing support")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Link: https://patch.msgid.link/20241221081448.3313163-1-joe@pf.is.s.u-tokyo.ac.jp
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit ba0925c34e0f ("gve: process XSK TX descriptors as part of RX NAPI")
moved XSK TX processing to be part of the RX NAPI. However, that commit
did not include triggering the RX NAPI in gve_xsk_wakeup. This is
necessary because the TX NAPI only processes TX completions, meaning
that a TX wakeup would not actually trigger XSK descriptor processing.
Also, the branch on XDP_WAKEUP_TX was supposed to have been removed, as
the NAPI should be scheduled whether the wakeup is for RX or TX.
Fixes: ba0925c34e0f ("gve: process XSK TX descriptors as part of RX NAPI")
Cc: stable@vger.kernel.org
Signed-off-by: Joshua Washington <joshwash@google.com>
Signed-off-by: Praveen Kaligineedi <pkaligineedi@google.com>
Link: https://patch.msgid.link/20241221032807.302244-1-pkaligineedi@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Check the return value of clk_prepare_enable to ensure that priv->clk has
been successfully enabled.
If priv->clk was not enabled during bcm_sysport_probe, bcm_sysport_resume,
or bcm_sysport_open, it must not be disabled in any subsequent execution
paths.
Fixes: 31bc72d97656 ("net: systemport: fetch and use clock resources")
Signed-off-by: Vitalii Mordan <mordan@ispras.ru>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20241227123007.2333397-1-mordan@ispras.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fixes and new HW support:
- hp-wmi: Add HP OMEN 8 to thermal profile list and use timer quirk
- mlx-platform: Fix PCI device refcount leaks
- thinkpad-acpi: Support a new platform profile toggle hotkey
The following is an automated shortlog grouped by driver:
hp-wmi:
- mark 8A15 board for timed OMEN thermal profile
mlx-platform:
- call pci_dev_put() to balance the refcount
thinkpad-acpi:
- Add support for hotkey 0x1401
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Merge tag 'platform-drivers-x86-v6.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers fixes from Ilpo Järvinen:
"hp-wmi:
- mark 8A15 board for timed OMEN thermal profile
mlx-platform:
- call pci_dev_put() to balance the refcount
thinkpad-acpi:
- Add support for hotkey 0x1401"
* tag 'platform-drivers-x86-v6.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: thinkpad-acpi: Add support for hotkey 0x1401
platform/x86: hp-wmi: mark 8A15 board for timed OMEN thermal profile
platform/x86: mlx-platform: call pci_dev_put() to balance the refcount
This reverts commit c2d188e137e77294323132a760a4608321a36a70.
Although it's fine to filter the invalid UMP groups at the first probe
time, this will become a problem when UMP groups are updated and
(re-)activated. Then there is no way to re-add the substreams
properly for the legacy rawmidi, and the new active groups will be
still invisible.
So let's revert the change. This will move back to showing the full
16 groups, but it's better than forever lost.
Link: https://patch.msgid.link/20241230114023.3787-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
OSS sequencer handles the SysEx messages split in 6 bytes packets, and
ALSA sequencer OSS layer tries to combine those. It stores the data
in the internal buffer and this access is racy as of now, which may
lead to the out-of-bounds access.
As a temporary band-aid fix, introduce a mutex for serializing the
process of the SysEx message packets.
Reported-by: Kun Hu <huk23@m.fudan.edu.cn>
Closes: https://lore.kernel.org/2B7E93E4-B13A-4AE4-8E87-306A8EE9BBB7@m.fudan.edu.cn
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20241230110543.32454-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
3d3f43fab4cf ("ALSA: compress_offload: improve file descriptors
installation for dma-buf") fixed some of descriptor races in
snd_compr_task_new(), but there's a couple more left.
We need to grab the references to dmabuf before moving them into
descriptor table - trying to do that by descriptor afterwards might
end up getting a different object, with a dangling reference left in
task->{input,output}
Fixes: 3d3f43fab4cf ("ALSA: compress_offload: improve file descriptors installation for dma-buf")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://patch.msgid.link/20241229185232.GA1977892@ZenIV
Signed-off-by: Takashi Iwai <tiwai@suse.de>
