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linux-stable/net/ipv6
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Alex Henrie fbdfbc8036 net: ipv6/addrconf: avoid integer underflow in ipv6_create_tempaddr 
[ Upstream commit f31867d0d9d82af757c1e0178b659438f4c1ea3c ]

The existing code incorrectly casted a negative value (the result of a
subtraction) to an unsigned value without checking. For example, if
/proc/sys/net/ipv6/conf/*/temp_prefered_lft was set to 1, the preferred
lifetime would jump to 4 billion seconds. On my machine and network the
shortest lifetime that avoided underflow was 3 seconds.

Fixes: 76506a986dc3 ("IPv6: fix DESYNC_FACTOR")
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-19 12:30:18 +02:00
..
ila
ila: do not generate empty messages in ila_xlat_nl_cmd_get_mapping()
2023-03-01 08:48:46 +00:00
netfilter
Revert "net: Remove low_thresh in ip defrag"
2023-05-16 20:46:30 -07:00
addrconf_core.c
net: rename reference+tracking helpers
2022-06-09 21:52:55 -07:00
addrconf.c
net: ipv6/addrconf: avoid integer underflow in ipv6_create_tempaddr
2023-09-19 12:30:18 +02:00
addrlabel.c
ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network
2022-11-07 12:26:15 +00:00
af_inet6.c
ipv6: remove hard coded limitation on ipv6_pinfo
2023-09-02 09:13:30 +02:00
ah6.c
net: ipv6: Remove completion function scaffolding
2023-02-13 18:35:15 +08:00
anycast.c
ipv6: fix memory leaks on IPV6_ADDRFORM path
2020-07-30 16:30:55 -07:00
calipso.c
cipso,calipso: resolve a number of problems with the DOI refcounts
2021-03-04 15:26:57 -08:00
datagram.c
ipv6: Fix datagram socket connection with DSCP.
2023-02-09 22:49:04 -08:00
esp6_offload.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-06-22 18:40:38 -07:00
esp6.c
net: ipv6: Remove completion function scaffolding
2023-02-13 18:35:15 +08:00
exthdrs_core.c
ipv6: Fix out-of-bounds access in ipv6_find_tlv()
2023-05-24 08:43:39 +01:00
exthdrs_offload.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
exthdrs.c
ipv6: exthdrs: Remove redundant skb_headlen() check in ip6_parse_tlv().
2023-06-19 11:32:58 -07:00
fib6_notifier.c
net: fib_notifier: propagate extack down to the notifier block callback
2019-10-04 11:10:56 -07:00
fib6_rules.c
ipv6: change fib6_rules_net_exit() to batch mode
2022-02-08 20:41:34 -08:00
fou6.c
net: Add MODULE_DESCRIPTION entries to network modules
2020-06-20 21:33:57 -07:00
icmp.c
icmp6: Fix null-ptr-deref of ip6_null_entry->rt6i_idev in icmp6_dev().
2023-07-08 10:08:54 +01:00
inet6_connection_sock.c
net: annotate lockless accesses to sk->sk_err_soft
2023-03-17 08:25:05 +00:00
inet6_hashtables.c
tcp: Access &tcp_hashinfo via net.
2022-09-20 10:21:49 -07:00
ioam6_iptunnel.c
ipv6: ioam: Insertion frequency in lwtunnel output
2022-02-04 20:24:45 -08:00
ioam6.c
genetlink: start to validate reserved header bytes
2022-08-29 12:47:15 +01:00
ip6_checksum.c
net: udp: fix handling of CHECKSUM_COMPLETE packets
2018-10-24 14:18:16 -07:00
ip6_fib.c
ipv6: remove nexthop_fib6_nh_bh()
2023-05-11 18:07:05 -07:00
ip6_flowlabel.c
ipv6: flowlabel: do not disable BH where not needed
2023-03-21 21:32:18 -07:00
ip6_gre.c
net:ipv6: check return value of pskb_trim()
2023-07-19 12:25:58 +01:00
ip6_icmp.c
net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending
2021-02-23 11:29:52 -08:00
ip6_input.c
ipv6: ignore dst hint for multipath routes
2023-09-19 12:30:17 +02:00
ip6_offload.c
net: move gso declarations and functions to their own files
2023-06-10 00:11:41 -07:00
ip6_offload.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ip6_output.c
net: annotate data-races around sk->sk_tsflags
2023-09-19 12:30:17 +02:00
ip6_tunnel.c
net: tunnels: annotate lockless accesses to dev->needed_headroom
2023-03-15 00:04:04 -07:00
ip6_udp_tunnel.c
net: Make locking in sock_bindtoindex optional
2020-06-01 14:57:14 -07:00
ip6_vti.c
ip6_vti: fix slab-use-after-free in decode_session6
2023-07-11 11:06:08 +02:00
ip6mr.c
ip6mr: Fix skb_under_panic in ip6mr_cache_report()
2023-08-02 10:35:21 +01:00
ipcomp6.c
xfrm: ipcomp: add extack to ipcomp{4,6}_init_state
2022-09-29 07:18:00 +02:00
ipv6_sockglue.c
net/ipv6: Initialise msg_control_is_user
2023-04-14 11:09:27 +01:00
Kconfig
ipv6: fix indentation of a config attribute
2023-08-16 10:03:08 +01:00
Makefile
net: ipv6: use ipv6-y directly instead of ipv6-objs
2021-09-28 13:13:40 +01:00
mcast_snoop.c
net: bridge: mcast: fix broken length + header check for MRDv6 Adv.
2021-04-27 14:02:06 -07:00
mcast.c
ipv6: constify inet6_mc_check()
2023-03-17 08:56:37 +00:00
mip6.c
xfrm: mip6: add extack to mip6_destopt_init_state, mip6_rthdr_init_state
2022-09-29 07:18:01 +02:00
ndisc.c
ipv6: adjust ndisc_is_useropt() to also return true for PIO
2023-08-09 15:36:12 -07:00
netfilter.c
netfilter: Use l3mdev flow key when re-routing mangled packets
2022-05-16 13:03:29 +02:00
output_core.c
treewide: use get_random_u32_{above,below}() instead of manual loop
2022-11-18 02:15:22 +01:00
ping.c
net: annotate data-races around sk->sk_tsflags
2023-09-19 12:30:17 +02:00
proc.c
icmp: Add counters for rate limits
2023-01-26 10:52:18 +01:00
protocol.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
raw.c
net: annotate data-races around sk->sk_tsflags
2023-09-19 12:30:17 +02:00
reassembly.c
Revert "net: Remove low_thresh in ip defrag"
2023-05-16 20:46:30 -07:00
route.c
ipv6: ignore dst hint for multipath routes
2023-09-19 12:30:17 +02:00
rpl_iptunnel.c
net: ipv6: rpl_iptunnel: Replace 0-length arrays with flexible arrays
2023-01-06 19:28:01 -08:00
rpl.c
ipv6: rpl: Remove pskb(_may)?_pull() in ipv6_rpl_srh_rcv().
2023-06-19 11:32:58 -07:00
seg6_hmac.c
net: ipv6: unexport __init-annotated seg6_hmac_net_init()
2022-06-28 21:23:30 -07:00
seg6_iptunnel.c
seg6: Cleanup duplicates of skb_dst_drop calls
2023-05-17 09:05:47 +01:00
seg6_local.c
seg6: add PSP flavor support for SRv6 End behavior
2023-02-16 13:18:06 +01:00
seg6.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-09-08 18:38:30 +02:00
sit.c
sit: update dev->needed_headroom in ipip6_tunnel_bind_dev()
2023-04-28 09:48:14 +01:00
syncookies.c
tcp: Fix data-races around sysctl_tcp_syncookies.
2022-07-18 12:21:54 +01:00
sysctl_net_ipv6.c
net: sysctl: introduce sysctl SYSCTL_THREE
2022-05-03 10:15:06 +02:00
tcp_ipv6.c
ipv6: remove hard coded limitation on ipv6_pinfo
2023-09-02 09:13:30 +02:00
tcpv6_offload.c
net: Make gro complete function to return void
2023-05-31 09:50:17 +01:00
tunnel6.c
tunnel6: add tunnel6_input_afinfo for ipip and ipv6 tunnels
2020-07-09 12:52:37 +02:00
udp_impl.h
tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct().
2022-10-12 17:50:37 -07:00
udp_offload.c
net: gro: fix misuse of CB in udp socket lookup
2023-07-29 17:10:27 +01:00
udp.c
net: annotate data-races around sk->sk_tsflags
2023-09-19 12:30:17 +02:00
udplite.c
ipv6: remove hard coded limitation on ipv6_pinfo
2023-09-02 09:13:30 +02:00
xfrm6_input.c
xfrm: fix inbound ipv4/udp/esp packets to UDPv6 dualstack sockets
2023-06-09 08:16:34 +02:00
xfrm6_output.c
xfrm: fix tunnel model fragmentation behavior
2022-03-01 12:08:40 +01:00
xfrm6_policy.c
net: dst: fix missing initialization of rt_uncached
2023-04-21 20:26:56 -07:00
xfrm6_protocol.c
xfrm: add support for UDPv6 encapsulation of ESP
2020-04-28 11:28:36 +02:00
xfrm6_state.c
xfrm: remove output_finish indirection from xfrm_state_afinfo
2020-05-06 09:40:08 +02:00
xfrm6_tunnel.c
xfrm: tunnel: add extack to ipip_init_state, xfrm6_tunnel_init_state
2022-09-29 07:18:00 +02:00