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| author | Bart Van Assche <bvanassche@acm.org> | 2012-08-24 10:27:54 +0000 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-09-30 20:36:47 -0700 |
| commit | 9b796d06d5d1b1e85ae2316a283ea11dd739ef96 (patch) | |
| tree | bc3a48847b26bc54d3d87f0ae6d264a0ed4ff681 /drivers/infiniband | |
| parent | 979570e02981d4a8fc20b3cc8fd651856c98ee9d (diff) | |
| download | lwn-9b796d06d5d1b1e85ae2316a283ea11dd739ef96.tar.gz lwn-9b796d06d5d1b1e85ae2316a283ea11dd739ef96.zip | |
IB/srp: Fix use-after-free in srp_reset_req()
srp_free_req() uses the scsi_cmnd structure contents to unmap
buffers, so we must invoke srp_free_req() before we release
ownership of that structure.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Cc: <stable@vger.kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 1b5b0c730054..ac66e6b43ee2 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -638,9 +638,9 @@ static void srp_reset_req(struct srp_target_port *target, struct srp_request *re struct scsi_cmnd *scmnd = srp_claim_req(target, req, NULL); if (scmnd) { + srp_free_req(target, req, scmnd, 0); scmnd->result = DID_RESET << 16; scmnd->scsi_done(scmnd); - srp_free_req(target, req, scmnd, 0); } } |