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bridge: add a READ_ONCE() in br_timer_value()

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br_timer_value() can be called locklessly, the expires field
could be changed concurrently.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20260604141343.2124500-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet
2026-06-04 14:13:33 +00:00
committed by Jakub Kicinski
parent 2eb9a81a7f
commit 032c8f6f21
1 changed files with 1 additions and 1 deletions
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2
net/bridge/br_stp_timer.c
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@@ -160,5 +160,5 @@ void br_stp_port_timer_init(struct net_bridge_port *p)
unsigned long br_timer_value(const struct timer_list *timer)
{
return timer_pending(timer)
? jiffies_delta_to_clock_t(timer->expires - jiffies) : 0;
? jiffies_delta_to_clock_t(READ_ONCE(timer->expires) - jiffies) : 0;
}