Merge branch 'ipv6-mcast-annotate-data-races-in-proc-net-igmp6'

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Yuyang Huang says:

====================
ipv6: mcast: annotate data races in /proc/net/igmp6

/proc/net/igmp6 walks IPv6 multicast memberships under RCU without
holding idev->mc_lock, taking a lockless snapshot of two fields that
writers update under the lock: mca_flags and mca_work.timer.expires.

Patch 1 adds WRITE_ONCE() to all mca_flags update sites and READ_ONCE()
to the procfs reader.  Patch 2 does the same for the timer.expires read
in the procfs path.
====================

Link: https://patch.msgid.link/20260609081113.7613-1-sigefriedhyy@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Jakub Kicinski 2026-06-12 17:12:13 -07:00

parent 8d8fb5b5f5 1ea2f885a7

commit 571e371357

1 changed files with 34 additions and 21 deletions

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net/ipv6/mcast.c

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