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| author | David Disseldorp <ddiss@suse.de> | 2017-05-03 18:39:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-20 15:31:01 +0300 |
| commit | 6ec05086dca927ba9574840e0e92ea9c92c439e6 (patch) | |
| tree | 0545066510ac954ee01d2b91f5a4bd1c035bfdd1 | |
| parent | b1b295efad9f32d7eae9eed06752d0872112e550 (diff) | |
| download | linux-6ec05086dca927ba9574840e0e92ea9c92c439e6.tar.xz | |
cifs: fix leak in FSCTL_ENUM_SNAPS response handling
commit 0e5c795592930d51fd30d53a2e7b73cba022a29b upstream.
The server may respond with success, and an output buffer less than
sizeof(struct smb_snapshot_array) in length. Do not leak the output
buffer in this case.
Fixes: 834170c85978 ("Enable previous version support")
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/cifs/smb2ops.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 007abf7195af..36334fe3266c 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -924,6 +924,7 @@ smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon, } if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) { rc = -ERANGE; + kfree(retbuf); return rc; } |