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Eric Dumazet a6ddc1c774 dccp: fix data-race around dp->dccps_mss_cache 
commit a47e598fbd8617967e49d85c49c22f9fc642704c upstream.

dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket.
Same thing in do_dccp_getsockopt().

Add READ_ONCE()/WRITE_ONCE() annotations,
and change dccp_sendmsg() to check again dccps_mss_cache
after socket is locked.

Fixes: 7c657876b63c ("[DCCP]: Initial implementation")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230803163021.2958262-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-16 18:27:27 +02:00
..
ccids
dccp: tfrc: fix doc warnings in tfrc_equation.c
2021-06-10 14:08:49 -07:00
ackvec.c
net: dccp: Fix most of the kerneldoc warnings
2020-10-30 12:08:54 -07:00
ackvec.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
ccid.c
net: dccp: Add __printf() markup to fix -Wsuggest-attribute=format
2020-10-30 11:31:46 -07:00
ccid.h
net: dccp: Replace zero-length array with flexible-array member
2020-02-28 12:08:37 -08:00
dccp.h
dccp: Call inet6_destroy_sock() via sk->sk_destruct().
2023-04-26 14:28:43 +02:00
diag.c
inet_diag: Move the INET_DIAG_REQ_BYTECODE nlattr to cb->data
2020-02-27 18:50:19 -08:00
feat.c
dccp: Return the correct errno code
2021-02-06 11:15:28 -08:00
feat.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
input.c
net: dccp: Convert to use the preferred fallthrough macro
2020-08-22 12:38:34 -07:00
ipv4.c
dccp/tcp: Fixup bhash2 bucket when connect() fails.
2022-11-22 20:15:37 -08:00
ipv6.c
net: annotate data-races around sk->sk_mark
2023-08-11 12:08:14 +02:00
ipv6.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Kconfig
dccp: Replace HTTP links with HTTPS ones
2020-07-13 11:54:07 -07:00
Makefile
net: dccp: Remove dccpprobe module
2018-01-02 14:27:30 -05:00
minisocks.c
tcp: allocate tcp_death_row outside of struct netns_ipv4
2022-01-26 19:00:31 -08:00
options.c
net: dccp: Convert to use the preferred fallthrough macro
2020-08-22 12:38:34 -07:00
output.c
dccp: fix data-race around dp->dccps_mss_cache
2023-08-16 18:27:27 +02:00
proto.c
dccp: fix data-race around dp->dccps_mss_cache
2023-08-16 18:27:27 +02:00
qpolicy.c
net: dccp: Fix most of the kerneldoc warnings
2020-10-30 12:08:54 -07:00
sysctl.c
proc/sysctl: add shared variables for range check
2019-07-18 17:08:07 -07:00
timer.c
net: sock: introduce sk_error_report
2021-06-29 11:28:21 -07:00
trace.h
net: dccp: Use memset_startat() for TP zeroing
2021-11-19 11:22:49 +00:00