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| author | David Sterba <dsterba@suse.com> | 2018-04-16 21:10:14 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-04-19 00:35:08 +0200 |
| commit | 92d32170847bfff2dd08af2c016085779f2fd2a1 (patch) | |
| tree | a86cbb655e5a787084da9c57b96de6bdcfd93b2e /fs/btrfs/delayed-ref.c | |
| parent | 336a8bb8e36a273a802a54b2e673c777c9c62fb1 (diff) | |
| download | blackbird-obmc-linux-92d32170847bfff2dd08af2c016085779f2fd2a1.tar.gz blackbird-obmc-linux-92d32170847bfff2dd08af2c016085779f2fd2a1.zip | |
btrfs: fix unaligned access in readdir
The last update to readdir introduced a temporary buffer to store the
emitted readdir data, but as there are file names of variable length,
there's a lot of unaligned access.
This was observed on a sparc64 machine:
Kernel unaligned access at TPC[102f3080] btrfs_real_readdir+0x51c/0x718 [btrfs]
Fixes: 23b5ec74943 ("btrfs: fix readdir deadlock with pagefault")
CC: stable@vger.kernel.org # 4.14+
Reported-and-tested-by: René Rebe <rene@exactcode.com>
Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/delayed-ref.c')
0 files changed, 0 insertions, 0 deletions
