| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.10 66/93] cifs: fix leak in FSCTL_ENUM_SNAPS response handling | Date | Thu, 18 May 2017 12:47:35 +0200 |
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4.10-stable review patch. If anyone has any objections, please let me know.
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From: David Disseldorp <ddiss@suse.de>
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>
--- fs/cifs/smb2ops.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -924,6 +924,7 @@ smb3_enum_snapshots(const unsigned int x } if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) { rc = -ERANGE; + kfree(retbuf); return rc; }
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