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| H A D | protocol.c | diff 44b1bfb5bd97973ccb8d1d105a08470fc36812d8 Mon Nov 25 08:04:51 CST 2024 Dmitry Kandybka <d.kandybka@gmail.com> mptcp: fix possible integer overflow in mptcp_reset_tout_timer
commit b169e76ebad22cbd055101ee5aa1a7bed0e66606 upstream.
In 'mptcp_reset_tout_timer', promote 'probe_timestamp' to unsigned long
to avoid possible integer overflow. Compile tested only.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Dmitry Kandybka <d.kandybka@gmail.com>
Link: https://patch.msgid.link/20241107103657.1560536-1-d.kandybka@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
[ Conflict in this version because commit d866ae9aaa43 ("mptcp: add a
new sysctl for make after break timeout") is not in this version, and
replaced TCP_TIMEWAIT_LEN in the expression. The fix can still be
applied the same way: by forcing a cast to unsigned long for the first
item. ]
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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