diff options
| author | Justin Stitt <justinstitt@google.com> | 2024-03-18 23:10:34 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-26 10:44:29 +0100 |
| commit | c58ab9249df78bbe3561418fced5a553b68f9070 (patch) | |
| tree | 7f195c395832d2ba41460c6281071098dddfc28a | |
| parent | 9dc28ea21eb40b9d023297ad9d513252260b1d63 (diff) | |
usb: gadget: u_ether: 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.
Let's use the new 2-argument strscpy() as this guarantees
NUL-termination on the destination buffer and also uses the destination
buffer's size to bound the operation.
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
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20240318-strncpy-drivers-usb-gadget-function-u_ether-c-v1-1-e8543a1db24a@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/gadget/function/u_ether.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c index 444212c0b5a9..11dd0b9e847f 100644 --- a/drivers/usb/gadget/function/u_ether.c +++ b/drivers/usb/gadget/function/u_ether.c @@ -1032,7 +1032,7 @@ int gether_set_ifname(struct net_device *net, const char *name, int len) if (!p || p[1] != 'd' || strchr(p + 2, '%')) return -EINVAL; - strncpy(net->name, tmp, sizeof(net->name)); + strscpy(net->name, tmp); dev->ifname_set = true; return 0; |