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| author | Azeem Shaikh <azeemshaikh38@gmail.com> | 2023-05-30 15:58:18 +0000 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-05-31 18:00:06 -0400 |
| commit | 4dae0262fb990873adad012dc8338f99cbca8574 (patch) | |
| tree | 040c234d2d97dc71a005fe8d118c28a7589ed27e /drivers/scsi/fcoe | |
| parent | 73be26b12dfd209e136da01dd7eefc85adc4df8d (diff) | |
| download | linux-4dae0262fb990873adad012dc8338f99cbca8574.tar.gz linux-4dae0262fb990873adad012dc8338f99cbca8574.tar.bz2 linux-4dae0262fb990873adad012dc8338f99cbca8574.zip | |
scsi: libfcoe: 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/20230530155818.368562-1-azeemshaikh38@gmail.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/fcoe')
| -rw-r--r-- | drivers/scsi/fcoe/fcoe_transport.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c index 46b0bf237be1..a48d24af9ac3 100644 --- a/drivers/scsi/fcoe/fcoe_transport.c +++ b/drivers/scsi/fcoe/fcoe_transport.c @@ -711,7 +711,7 @@ static struct net_device *fcoe_if_to_netdev(const char *buffer) char ifname[IFNAMSIZ + 2]; if (buffer) { - strlcpy(ifname, buffer, IFNAMSIZ); + strscpy(ifname, buffer, IFNAMSIZ); cp = ifname + strlen(ifname); while (--cp >= ifname && *cp == '\n') *cp = '\0'; |