diff options
| author | Justin Stitt <justinstitt@google.com> | 2023-10-05 21:55:06 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-09 19:39:29 -0700 |
| commit | a16724289af0da1f922e41fd09f229f0beec10f9 (patch) | |
| tree | 8c6110242a50eaf6b48297ae924511094fecb4b9 /drivers/net/ethernet/cavium | |
| parent | 092b0be650325b3db490b48182ae23dba0b5755c (diff) | |
liquidio: replace deprecated strncpy with strscpy
`strncpy` is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
NUL-padding is not required as rep_cfg is memset to 0:
| memset(&rep_cfg, 0, sizeof(rep_cfg));
A suitable replacement is `strscpy` [2] due to the fact that it
guarantees NUL-termination on the destination buffer without
unnecessarily NUL-padding.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20231005-strncpy-drivers-net-ethernet-cavium-liquidio-lio_vf_rep-c-v1-1-92123a747780@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/cavium')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c index 600de587d7a9..aa6c0dfb6f1c 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c @@ -638,7 +638,8 @@ lio_vf_rep_netdev_event(struct notifier_block *nb, memset(&rep_cfg, 0, sizeof(rep_cfg)); rep_cfg.req_type = LIO_VF_REP_REQ_DEVNAME; rep_cfg.ifidx = vf_rep->ifidx; - strncpy(rep_cfg.rep_name.name, ndev->name, LIO_IF_NAME_SIZE); + strscpy(rep_cfg.rep_name.name, ndev->name, + sizeof(rep_cfg.rep_name.name)); ret = lio_vf_rep_send_soft_command(oct, &rep_cfg, sizeof(rep_cfg), NULL, 0); |