diff options
author | Dan Carpenter <dan.carpenter@oracle.com> | 2012-03-01 07:06:52 (GMT) |
---|---|---|
committer | Steve French <sfrench@us.ibm.com> | 2012-03-31 22:32:18 (GMT) |
commit | 2545e0720a5a4bf8ebccc6f793f97a246cf3f18d (patch) | |
tree | 377dc4e2bc40e93189f44a3e48515a50722e31c5 /fs | |
parent | b2a3ad9ca502169fc4c11296fa20f56059c7c031 (diff) | |
download | linux-2545e0720a5a4bf8ebccc6f793f97a246cf3f18d.tar.xz |
cifs: writing past end of struct in cifs_convert_address()
"s6->sin6_scope_id" is an int bits but strict_strtoul() writes a long
so this can corrupt memory on 64 bit systems.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/cifs/netmisc.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index dd23a32..581c225 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -197,8 +197,7 @@ cifs_convert_address(struct sockaddr *dst, const char *src, int len) memcpy(scope_id, pct + 1, slen); scope_id[slen] = '\0'; - rc = strict_strtoul(scope_id, 0, - (unsigned long *)&s6->sin6_scope_id); + rc = kstrtouint(scope_id, 0, &s6->sin6_scope_id); rc = (rc == 0) ? 1 : 0; } |