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| author | Mikulas Patocka <mpatocka@redhat.com> | 2017-11-07 18:40:40 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2017-11-10 23:44:59 +0300 |
| commit | 95b1369a9638cfa322ad1c0cde8efbe524059884 (patch) | |
| tree | 2a2e8cc8d4add04b7ffefa615e6d9c2ad4b6a2c5 /.cocciconfig | |
| parent | 0440d5c0ca9744b92a07aeb6df0a9a75db6f4280 (diff) | |
| download | linux-95b1369a9638cfa322ad1c0cde8efbe524059884.tar.xz | |
dm integrity: allow unaligned bv_offset
When slub_debug is enabled kmalloc returns unaligned memory. XFS uses
this unaligned memory for its buffers (if an unaligned buffer crosses a
page, XFS frees it and allocates a full page instead - see the function
xfs_buf_allocate_memory).
dm-integrity checks if bv_offset is aligned on page size and this check
fail with slub_debug and XFS.
Fix this bug by removing the bv_offset check, leaving only the check for
bv_len.
Fixes: 7eada909bfd7 ("dm: add integrity target")
Cc: stable@vger.kernel.org # v4.12+
Reported-by: Bruno Prémont <bonbons@sysophe.eu>
Reviewed-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to '.cocciconfig')
0 files changed, 0 insertions, 0 deletions