diff options
| author | Marios Makassikis <mmakassikis@freebox.fr> | 2022-11-29 14:19:33 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2022-12-11 17:33:31 +0300 |
| commit | 01f6c61bae3d658058ee6322af77acea26a5ee3a (patch) | |
| tree | 4ac258cf63e51c386ca17a351397d892c7dfffcd /fs/ksmbd/smb2pdu.c | |
| parent | bc044414fa0326a4e5c3c509c00b1fcaf621b5f4 (diff) | |
| download | linux-01f6c61bae3d658058ee6322af77acea26a5ee3a.tar.xz | |
ksmbd: Fix resource leak in smb2_lock()
"flock" is leaked if an error happens before smb2_lock_init(), as the
lock is not added to the lock_list to be cleaned up.
Signed-off-by: Marios Makassikis <mmakassikis@freebox.fr>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/ksmbd/smb2pdu.c')
| -rw-r--r-- | fs/ksmbd/smb2pdu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index 79261493a212..88d2c23369fe 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -6857,6 +6857,7 @@ int smb2_lock(struct ksmbd_work *work) if (lock_start > U64_MAX - lock_length) { pr_err("Invalid lock range requested\n"); rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE; + locks_free_lock(flock); goto out; } @@ -6876,6 +6877,7 @@ int smb2_lock(struct ksmbd_work *work) "the end offset(%llx) is smaller than the start offset(%llx)\n", flock->fl_end, flock->fl_start); rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE; + locks_free_lock(flock); goto out; } @@ -6887,6 +6889,7 @@ int smb2_lock(struct ksmbd_work *work) flock->fl_type != F_UNLCK) { pr_err("conflict two locks in one request\n"); err = -EINVAL; + locks_free_lock(flock); goto out; } } @@ -6895,6 +6898,7 @@ int smb2_lock(struct ksmbd_work *work) smb_lock = smb2_lock_init(flock, cmd, flags, &lock_list); if (!smb_lock) { err = -EINVAL; + locks_free_lock(flock); goto out; } } |