6.12-stable review patch. If anyone has any objections, please let me know.
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From: Daniel Wagner wagi@kernel.org
[ Upstream commit ae82eaf4aeea060bb736c3e20c0568b67c701d7d ]
The strlcat() with FORTIFY support is triggering a panic because it thinks the target buffer will overflow although the correct target buffer size is passed in.
Anyway, instead of memset() with 0 followed by a strlcat(), just use memcpy() and ensure that the resulting buffer is NULL terminated.
BIOSVersion is only used for the lpfc_printf_log() which expects a properly terminated string.
Signed-off-by: Daniel Wagner wagi@kernel.org Link: https://lore.kernel.org/r/20250409-fix-lpfc-bios-str-v1-1-05dac9e51e13@kerne... Reviewed-by: Justin Tee justin.tee@broadcom.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/lpfc/lpfc_sli.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 6748fba48a07e..4dccbaeb63283 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -6020,9 +6020,9 @@ lpfc_sli4_get_ctl_attr(struct lpfc_hba *phba) phba->sli4_hba.flash_id = bf_get(lpfc_cntl_attr_flash_id, cntl_attr); phba->sli4_hba.asic_rev = bf_get(lpfc_cntl_attr_asic_rev, cntl_attr);
- memset(phba->BIOSVersion, 0, sizeof(phba->BIOSVersion)); - strlcat(phba->BIOSVersion, (char *)cntl_attr->bios_ver_str, + memcpy(phba->BIOSVersion, cntl_attr->bios_ver_str, sizeof(phba->BIOSVersion)); + phba->BIOSVersion[sizeof(phba->BIOSVersion) - 1] = '\0';
lpfc_printf_log(phba, KERN_INFO, LOG_SLI, "3086 lnk_type:%d, lnk_numb:%d, bios_ver:%s, "