RDMA/srpt: Do not register event handler until srpt device is fully setup

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[ Upstream commit c21a8870c9 ]

Upon rare occasions, KASAN reports a use-after-free Write
in srpt_refresh_port().

This seems to be because an event handler is registered before the
srpt device is fully setup and a race condition upon error may leave a
partially setup event handler in place.

Instead, only register the event handler after srpt device initialization
is complete.

Fixes: a42d985bd5 ("ib_srpt: Initial SRP Target merge for v3.3-rc1")
Signed-off-by: William Kucharski <william.kucharski@oracle.com>
Link: https://lore.kernel.org/r/20240202091549.991784-2-william.kucharski@oracle.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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William Kucharski 2024-02-02 02:15:49 -07:00 • committed by Sasha Levin

parent 9af1658ba2

commit 6413e78086

1 changed files with 1 additions and 2 deletions

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drivers/infiniband/ulp/srpt/ib_srpt.c

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