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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>