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| author | Eric Dumazet <edumazet@google.com> | 2024-05-31 13:26:35 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-07-27 10:33:41 +0200 |
| commit | 7435bd2f84a25aba607030237261b3795ba782da (patch) | |
| tree | ad48ce3918290a0946c64d55c075c3db757b233a /scripts/gcc-plugins/sancov_plugin.c | |
| parent | ce0368a52554d213c5cd447ba786b54390a845e1 (diff) | |
ila: block BH in ila_output()
[ Upstream commit cf28ff8e4c02e1ffa850755288ac954b6ff0db8c ]
As explained in commit 1378817486d6 ("tipc: block BH
before using dst_cache"), net/core/dst_cache.c
helpers need to be called with BH disabled.
ila_output() is called from lwtunnel_output()
possibly from process context, and under rcu_read_lock().
We might be interrupted by a softirq, re-enter ila_output()
and corrupt dst_cache data structures.
Fix the race by using local_bh_disable().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240531132636.2637995-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/gcc-plugins/sancov_plugin.c')
0 files changed, 0 insertions, 0 deletions