diff options
| author | Hongbo Li <[email protected]> | 2024-08-28 20:32:20 +0800 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2024-08-29 12:33:07 -0700 |
| commit | b19f69a958300dcc93e453d7ed3fa354fc0f590c (patch) | |
| tree | 247fc85817a98bb17f8e173515dd5169002a93cc | |
| parent | 68016b997222c9f866912f6911815105ed2ce473 (diff) | |
net/ipv6: replace deprecated strcpy with strscpy
The deprecated helper strcpy() performs no bounds checking on the
destination buffer. This could result in linear overflows beyond
the end of the buffer, leading to all kinds of misbehaviors.
The safe replacement is strscpy() [1].
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1]
Signed-off-by: Hongbo Li <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
| -rw-r--r-- | net/ipv6/ndisc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 1e42e40fb379..aba94a348673 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1944,7 +1944,7 @@ static void ndisc_warn_deprecated_sysctl(const struct ctl_table *ctl, static char warncomm[TASK_COMM_LEN]; static int warned; if (strcmp(warncomm, current->comm) && warned < 5) { - strcpy(warncomm, current->comm); + strscpy(warncomm, current->comm); pr_warn("process `%s' is using deprecated sysctl (%s) net.ipv6.neigh.%s.%s - use net.ipv6.neigh.%s.%s_ms instead\n", warncomm, func, dev_name, ctl->procname, |