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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2012-03-01 10:06:52 +0300 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2012-03-31 17:32:18 -0500 |
| commit | 2545e0720a5a4bf8ebccc6f793f97a246cf3f18d (patch) | |
| tree | 377dc4e2bc40e93189f44a3e48515a50722e31c5 /fs/cifs | |
| parent | b2a3ad9ca502169fc4c11296fa20f56059c7c031 (diff) | |
| download | linux-2545e0720a5a4bf8ebccc6f793f97a246cf3f18d.tar.gz linux-2545e0720a5a4bf8ebccc6f793f97a246cf3f18d.tar.bz2 linux-2545e0720a5a4bf8ebccc6f793f97a246cf3f18d.zip | |
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/cifs')
| -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 dd23a321bdda..581c225f7f50 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; } |