6.16-stable review patch. If anyone has any objections, please let me know.
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From: David Howells dhowells@redhat.com
[ Upstream commit 453a6d2a68e54a483d67233c6e1e24c4095ee4be ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- fs/smb/client/smb2ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 4bb065a6fbaa..d3e09b10dea4 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);