I think you are looking for this patch (kernel 3.7;
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=220329916c72ee3d54ae7262b215a050f04a18fc):
commit 220329916c72ee3d54ae7262b215a050f04a18fc
Author: Bart Van Assche <bvanass...@acm.org>
Date: Tue Aug 14 13:18:53 2012 +0000
IB/srp: Fix a race condition
Avoid a crash caused by the scmnd->scsi_done(scmnd) call in
srp_process_rsp() being invoked with scsi_done == NULL. This can
happen if a reply is received during or after a command abort.
Reported-by: Joseph Glanville <joseph.glanvi...@orionvm.com.au>
Reference: http://marc.info/?l=linux-rdma&m=134314367801595
Cc: <sta...@vger.kernel.org>
Acked-by: David Dillow <dillo...@ornl.gov>
Signed-off-by: Bart Van Assche <bvanass...@acm.org>
Signed-off-by: Roland Dreier <rol...@purestorage.com>
** Tags removed: needs-upstream-testing
** Tags added: kernel-fixed-upstream-v3.7
** Tags added: kernel-fixed-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1037115
Title:
BUG: unable to handle kernel NULL pointer dereference at
00000000000000e0; RIP: 0010:[<ffffffffa032b270>] [<ffffffffa032b270>]
srp_process_rsp+0x50/0x170 [ib_srp]
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