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| author |   David Howells <dhowells@redhat.com> | 2025-08-19 16:27:36 +0100 |
|---|---|---|
| committer |   Steve French <stfrench@microsoft.com> | 2025-08-19 11:16:14 -0500 |
| commit | 453a6d2a68e54a483d67233c6e1e24c4095ee4be (patch) | |
| tree | 99a715d7d2dcf4f3e653469b0460921d91d503e8 | |
| parent | Linux 6.17-rc2 (diff) | |
| download | wireguard-linux-453a6d2a68e54a483d67233c6e1e24c4095ee4be.tar.xz wireguard-linux-453a6d2a68e54a483d67233c6e1e24c4095ee4be.zip | |
cifs: Fix oops due to uninitialised variable
Fix smb3_init_transform_rq() to initialise buffer to NULL before calling
netfs_alloc_folioq_buffer() as netfs assumes it can append to the buffer it
is given. Setting it to NULL means it should start a fresh buffer, but the
value is currently undefined.
Fixes: a2906d3316fc ("cifs: Switch crypto buffer to use a folio_queue rather than an xarray")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
| -rw-r--r-- | fs/smb/client/smb2ops.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 3b251de874ec..94b1d7a395d5 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -4496,7 +4496,7 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, int num_rqst, for (int i = 1; i < num_rqst; i++) { struct smb_rqst *old = &old_rq[i - 1]; struct smb_rqst *new = &new_rq[i]; - struct folio_queue *buffer; + struct folio_queue *buffer = NULL; size_t size = iov_iter_count(&old->rq_iter); orig_len += smb_rqst_len(server, old); |