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| author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2021-09-27 17:43:44 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-10-04 23:29:38 -0400 |
| commit | c20bda341946c8ee77baec3bec7c5cd615ddf869 (patch) | |
| tree | 681d29954125775089b7b2ecff93741db47f975b /drivers | |
| parent | 5384ee089d1f79b027bb62b0cfa729890ca71f8b (diff) | |
| download | linux-c20bda341946c8ee77baec3bec7c5cd615ddf869.tar.gz linux-c20bda341946c8ee77baec3bec7c5cd615ddf869.tar.bz2 linux-c20bda341946c8ee77baec3bec7c5cd615ddf869.zip | |
scsi: target: tcmu: Use struct_size() helper in kmalloc()
Make use of the struct_size() helper instead of an open-coded version, in
order to avoid any potential type mistakes or integer overflows that, in
the worst scenario, could lead to heap overflows.
Link: https://github.com/KSPP/linux/issues/160
Link: https://lore.kernel.org/r/20210927224344.GA190701@embeddedor
Reviewed-by: Bodo Stroesser <bostroesser@gmail.com>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/target/target_core_user.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 9f552f48084c..dc220fad06fa 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -1255,7 +1255,6 @@ tcmu_tmr_notify(struct se_device *se_dev, enum tcm_tmreq_table tmf, { int i = 0, cmd_cnt = 0; bool unqueued = false; - uint16_t *cmd_ids = NULL; struct tcmu_cmd *cmd; struct se_cmd *se_cmd; struct tcmu_tmr *tmr; @@ -1292,7 +1291,7 @@ tcmu_tmr_notify(struct se_device *se_dev, enum tcm_tmreq_table tmf, pr_debug("TMR event %d on dev %s, aborted cmds %d, afflicted cmd_ids %d\n", tcmu_tmr_type(tmf), udev->name, i, cmd_cnt); - tmr = kmalloc(sizeof(*tmr) + cmd_cnt * sizeof(*cmd_ids), GFP_NOIO); + tmr = kmalloc(struct_size(tmr, tmr_cmd_ids, cmd_cnt), GFP_NOIO); if (!tmr) goto unlock; |