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| author | Sebastien Tisserant <stisserant@wallix.com> | 2019-08-01 20:06:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-29 09:26:40 +0300 |
| commit | 5a166c83eeadf349ffd91bc787fd0dae1bc5ff6c (patch) | |
| tree | a815ed38dfee73da7ef0ab3ff2a4393d101a5d4c /fs/cifs | |
| parent | 4b019c0b081ccd581d766cd1602ee2f6d17982e8 (diff) | |
| download | linux-5a166c83eeadf349ffd91bc787fd0dae1bc5ff6c.tar.xz | |
SMB3: Kernel oops mounting a encryptData share with CONFIG_DEBUG_VIRTUAL
[ Upstream commit ee9d66182392695535cc9fccfcb40c16f72de2a9 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/cifs')
| -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 23326b0cd562..58a502e622aa 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -2168,7 +2168,15 @@ fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, struct smb_rqst *old_rq) 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)); } static struct scatterlist * |