]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
scsi: sg: Do not sleep in atomic context
authorBart Van Assche <bvanassche@acm.org>
Thu, 13 Nov 2025 18:16:43 +0000 (10:16 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 6 Dec 2025 21:12:37 +0000 (06:12 +0900)
commit3dfd520c3b4ffe69e0630c580717d40447ab842f
tree1027441717756a3e6ef9752e8075aacb08939d07
parent3d81beae4753db3b3dc5b70dc300d4036e0d9cb8
scsi: sg: Do not sleep in atomic context

commit 90449f2d1e1f020835cba5417234636937dd657e upstream.

sg_finish_rem_req() calls blk_rq_unmap_user(). The latter function may
sleep. Hence, call sg_finish_rem_req() with interrupts enabled instead
of disabled.

Reported-by: syzbot+c01f8e6e73f20459912e@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/linux-scsi/691560c4.a70a0220.3124cb.001a.GAE@google.com/
Cc: Hannes Reinecke <hare@suse.de>
Cc: stable@vger.kernel.org
Fixes: 97d27b0dd015 ("scsi: sg: close race condition in sg_remove_sfp_usercontext()")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251113181643.1108973-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/scsi/sg.c