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| author | Azeem Shaikh <azeemshaikh38@gmail.com> | 2023-05-30 18:02:48 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-06-01 00:03:33 +0200 |
| commit | dbe37c71d1246ec2c5f851aeede12db44ffd5d2c (patch) | |
| tree | bd2cfd66972deae6de67253e7e3b5f243ee1833d /drivers/message/fusion | |
| parent | scsi: libfcoe: Replace all non-returning strlcpy() with strscpy() (diff) | |
| download | linux-dbe37c71d1246ec2c5f851aeede12db44ffd5d2c.tar.xz linux-dbe37c71d1246ec2c5f851aeede12db44ffd5d2c.zip | |
scsi: message: fusion: Replace all non-returning strlcpy() with strscpy()
strlcpy() reads the entire source buffer first. This read may exceed the
destination size limit. This is both inefficient and can lead to linear
read overflows if a source string is not NUL-terminated [1]. In an effort
to remove strlcpy() completely [2], replace strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89
Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Link: https://lore.kernel.org/r/20230530160248.411637-1-azeemshaikh38@gmail.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/message/fusion')
| -rw-r--r-- | drivers/message/fusion/mptbase.c | 4 | ||||
| -rw-r--r-- | drivers/message/fusion/mptctl.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 4f0afce8428d..4bf669c55649 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -712,7 +712,7 @@ mpt_register(MPT_CALLBACK cbfunc, MPT_DRIVER_CLASS dclass, char *func_name) MptDriverClass[cb_idx] = dclass; MptEvHandlers[cb_idx] = NULL; last_drv_idx = cb_idx; - strlcpy(MptCallbacksName[cb_idx], func_name, + strscpy(MptCallbacksName[cb_idx], func_name, MPT_MAX_CALLBACKNAME_LEN+1); break; } @@ -7666,7 +7666,7 @@ mpt_display_event_info(MPT_ADAPTER *ioc, EventNotificationReply_t *pEventReply) break; } if (ds) - strlcpy(evStr, ds, EVENT_DESCR_STR_SZ); + strscpy(evStr, ds, EVENT_DESCR_STR_SZ); devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c index 1decd09a08d8..dd028df4b283 100644 --- a/drivers/message/fusion/mptctl.c +++ b/drivers/message/fusion/mptctl.c @@ -2408,7 +2408,7 @@ mptctl_hp_hostinfo(MPT_ADAPTER *ioc, unsigned long arg, unsigned int data_size) if (mpt_config(ioc, &cfg) == 0) { ManufacturingPage0_t *pdata = (ManufacturingPage0_t *) pbuf; if (strlen(pdata->BoardTracerNumber) > 1) { - strlcpy(karg.serial_number, + strscpy(karg.serial_number, pdata->BoardTracerNumber, 24); } } |