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| author | Javed Hasan <jhasan@marvell.com> | 2021-06-03 03:14:04 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-06-09 23:55:38 -0400 |
| commit | 8f70328c068f9f5c5db82848724cb276f657b9cd (patch) | |
| tree | f731f01cb4919e718c5b3b195b4e41b8626a4112 /drivers/scsi/libfc | |
| parent | 40445fd2c9fa427297acdfcc2c573ff10493f209 (diff) | |
| download | linux-8f70328c068f9f5c5db82848724cb276f657b9cd.tar.gz linux-8f70328c068f9f5c5db82848724cb276f657b9cd.tar.bz2 linux-8f70328c068f9f5c5db82848724cb276f657b9cd.zip | |
scsi: libfc: Correct the condition check and invalid argument passed
Incorrect condition check was leading to data corruption.
Link: https://lore.kernel.org/r/20210603101404.7841-3-jhasan@marvell.com
Fixes: 8fd9efca86d0 ("scsi: libfc: Work around -Warray-bounds warning")
CC: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/libfc')
| -rw-r--r-- | drivers/scsi/libfc/fc_encode.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/scsi/libfc/fc_encode.h b/drivers/scsi/libfc/fc_encode.h index 602c97a651bc..9ea4ceadb559 100644 --- a/drivers/scsi/libfc/fc_encode.h +++ b/drivers/scsi/libfc/fc_encode.h @@ -166,9 +166,11 @@ static inline int fc_ct_ns_fill(struct fc_lport *lport, static inline void fc_ct_ms_fill_attr(struct fc_fdmi_attr_entry *entry, const char *in, size_t len) { - int copied = strscpy(entry->value, in, len); - if (copied > 0) - memset(entry->value, copied, len - copied); + int copied; + + copied = strscpy((char *)&entry->value, in, len); + if (copied > 0 && (copied + 1) < len) + memset((entry->value + copied + 1), 0, len - copied - 1); } /** |