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linux-stable/net/wireless
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Johannes Berg 930e826962 wifi: nl80211: reject iftype change with mesh ID change 
commit f78c137533 upstream.

It's currently possible to change the mesh ID when the
interface isn't yet in mesh mode, at the same time as
changing it into mesh mode. This leads to an overwrite
of data in the wdev->u union for the interface type it
currently has, causing cfg80211_change_iface() to do
wrong things when switching.

We could probably allow setting an interface to mesh
while setting the mesh ID at the same time by doing a
different order of operations here, but realistically
there's no userspace that's going to do this, so just
disallow changes in iftype when setting mesh ID.

Cc: stable@vger.kernel.org
Fixes: 29cbe68c51 ("cfg80211/mac80211: add mesh join/leave commands")
Reported-by: syzbot+dd4779978217b1973180@syzkaller.appspotmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-03-06 14:45:10 +00:00
..
certs wifi: cfg80211: fix certs build to not depend on file order 2024-01-01 12:39:02 +00:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
ap.c wifi: cfg80211: do some rework towards MLO link APIs 2022-06-20 12:54:58 +02:00
chan.c wifi: nl80211: relax wdev mutex check in wdev_chandef() 2022-07-01 11:42:58 +02:00
core.c wifi: cfg80211: fix wiphy delayed work queueing 2024-02-23 09:12:44 +01:00
core.h wifi: cfg80211: fix CQM for non-range use 2024-01-01 12:39:09 +00:00
debugfs.c wifi: cfg80211: debugfs: fix return type in ht40allow_map_read() 2022-08-25 10:04:46 +02:00
debugfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ethtool.c wifi: cfg80211: use strscpy to replace strlcpy 2022-07-15 11:43:12 +02:00
ibss.c wifi: cfg80211: Add link_id parameter to various key operations for MLO 2022-08-25 10:41:05 +02:00
Kconfig cfg80211: select CONFIG_CRC32 2021-01-05 15:50:36 -08:00
lib80211_crypt_ccmp.c wifi: use struct_group to copy addresses 2022-09-03 16:40:06 +02:00
lib80211_crypt_tkip.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
lib80211_crypt_wep.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
lib80211.c lib80211: Remove unused macro DRV_NAME 2020-09-18 11:53:00 +02:00
Makefile cfg80211: fix CONFIG_CFG80211_EXTRA_REGDB_KEYDIR typo 2022-03-01 14:10:14 +01:00
mesh.c wifi: cfg80211: do some rework towards MLO link APIs 2022-06-20 12:54:58 +02:00
mlme.c wifi: cfg80211: reject auth/assoc to AP with our address 2023-09-23 11:11:03 +02:00
nl80211.c wifi: nl80211: reject iftype change with mesh ID change 2024-03-06 14:45:10 +00:00
nl80211.h wifi: cfg80211/nl80211: move rx management data into a struct 2022-07-22 14:28:26 +02:00
ocb.c wifi: cfg80211: ocb: don't leave if not joined 2023-09-23 11:11:03 +02:00
of.c cfg80211: support ieee80211-freq-limit DT property 2017-01-06 14:01:13 +01:00
pmsr.c cfg80211: pmsr: remove useless ifdef guards 2022-02-04 16:26:16 +01:00
radiotap.c mac80211: Use flex-array for radiotap header bitmap 2021-08-13 09:58:25 +02:00
rdev-ops.h wifi: cfg80211: fix link del callback to call correct handler 2023-06-21 16:00:59 +02:00
reg.c wifi: cfg80211: fix regulatory disconnect for non-MLO 2023-07-19 16:22:09 +02:00
reg.h cfg80211: avoid holding the RTNL when calling the driver 2021-01-26 11:55:50 +01:00
scan.c wifi: cfg80211: fix RCU dereference in __cfg80211_bss_update 2024-02-05 20:13:00 +00:00
sme.c wifi: cfg80211: hold wiphy lock in auto-disconnect 2023-10-10 22:00:39 +02:00
sysfs.c wifi: cfg80211: add flush functions for wiphy work 2023-11-20 11:51:51 +01:00
sysfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace.c cfg80211: add tracing to rdev-ops 2012-10-18 10:53:37 +02:00
trace.h wifi: cfg80211: Add link_id to cfg80211_ch_switch_started_notify() 2022-08-25 11:07:26 +02:00
util.c wifi: cfg80211: remove links only on AP 2023-09-13 09:42:24 +02:00
wext-compat.c wifi: cfg80211: Add link_id parameter to various key operations for MLO 2022-08-25 10:41:05 +02:00
wext-compat.h treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
wext-core.c wifi: wext-core: Fix -Wstringop-overflow warning in ioctl_standard_iw_point() 2023-07-27 08:50:35 +02:00
wext-priv.c
wext-proc.c proc: introduce proc_create_net{,_data} 2018-05-16 07:24:30 +02:00
wext-sme.c wifi: cfg80211: do some rework towards MLO link APIs 2022-06-20 12:54:58 +02:00
wext-spy.c wireless: wext-spy: Fix out-of-bounds warning 2021-06-23 10:57:17 +02:00