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authorLinus Torvalds <torvalds@linux-foundation.org>2019-10-19 01:30:09 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-10-19 01:30:09 +0300
commit6b95cf9b8bb3cb647d9f43109a9c50a234b39781 (patch)
treec7e85a5d8cabe31eb6048d6a4c5cefc29edb120f /fs
parentfb8527e5c13ed70057b8dfce0764ec625ec3e400 (diff)
parent25e6be21230d3208d687dad90b6e43419013c351 (diff)
downloadlinux-6b95cf9b8bb3cb647d9f43109a9c50a234b39781.tar.xz
Merge tag 'ceph-for-5.4-rc4' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov: "A future-proofing decoding fix from Jeff intended for stable and a patch for a mostly benign race from Dongsheng" * tag 'ceph-for-5.4-rc4' of git://github.com/ceph/ceph-client: rbd: cancel lock_dwork if the wait is interrupted ceph: just skip unrecognized info in ceph_reply_info_extra
Diffstat (limited to 'fs')
-rw-r--r--fs/ceph/mds_client.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index a8a8f84f3bbf..a5163296d9d9 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -384,8 +384,8 @@ static int parse_reply_info_readdir(void **p, void *end,
}
done:
- if (*p != end)
- goto bad;
+ /* Skip over any unrecognized fields */
+ *p = end;
return 0;
bad:
@@ -406,12 +406,10 @@ static int parse_reply_info_filelock(void **p, void *end,
goto bad;
info->filelock_reply = *p;
- *p += sizeof(*info->filelock_reply);
- if (unlikely(*p != end))
- goto bad;
+ /* Skip over any unrecognized fields */
+ *p = end;
return 0;
-
bad:
return -EIO;
}
@@ -425,18 +423,21 @@ static int parse_reply_info_create(void **p, void *end,
{
if (features == (u64)-1 ||
(features & CEPH_FEATURE_REPLY_CREATE_INODE)) {
+ /* Malformed reply? */
if (*p == end) {
info->has_create_ino = false;
} else {
info->has_create_ino = true;
- info->ino = ceph_decode_64(p);
+ ceph_decode_64_safe(p, end, info->ino, bad);
}
+ } else {
+ if (*p != end)
+ goto bad;
}
- if (unlikely(*p != end))
- goto bad;
+ /* Skip over any unrecognized fields */
+ *p = end;
return 0;
-
bad:
return -EIO;
}