diff options
| author | Sebastien Tisserant <stisserant@wallix.com> | 2019-08-01 12:06:08 -0500 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-08-05 22:50:38 -0500 |
| commit | ee9d66182392695535cc9fccfcb40c16f72de2a9 (patch) | |
| tree | d350eb332727522f430901b46d8e4d3cf32d51a8 /fs | |
| parent | 108624eaff6f17f1966e4a94dc7bc5df2c5115ee (diff) | |
| download | linux-ee9d66182392695535cc9fccfcb40c16f72de2a9.tar.bz2 | |
SMB3: Kernel oops mounting a encryptData share with CONFIG_DEBUG_VIRTUAL
Fix kernel oops when mounting a encryptData CIFS share with
CONFIG_DEBUG_VIRTUAL
Signed-off-by: Sebastien Tisserant <stisserant@wallix.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/smb2ops.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 19589922ef2b..64a5864127be 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -3489,7 +3489,15 @@ fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, unsigned int orig_len, static inline void smb2_sg_set_buf(struct scatterlist *sg, const void *buf, unsigned int buflen) { - sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf)); + void *addr; + /* + * VMAP_STACK (at least) puts stack into the vmalloc address space + */ + if (is_vmalloc_addr(buf)) + addr = vmalloc_to_page(buf); + else + addr = virt_to_page(buf); + sg_set_page(sg, addr, buflen, offset_in_page(buf)); } /* Assumes the first rqst has a transform header as the first iov. |