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| author | Ilya Dryomov <idryomov@gmail.com> | 2013-10-02 17:41:01 (GMT) |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-10-04 20:02:14 (GMT) |
| commit | 1357272fc7deeebb7b3c5d1a071562edc273cdaf (patch) | |
| tree | 37af6be54b03e07b4fb06a2ddc4c5ac739c53032 /fs/btrfs/extent_io.c | |
| parent | 964fb15acfcd672ac691f04879b71f07ccc21e0c (diff) | |
| download | linux-fsl-qoriq-1357272fc7deeebb7b3c5d1a071562edc273cdaf.tar.xz | |
Btrfs: fix a use-after-free bug in btrfs_dev_replace_finishing
free_device rcu callback, scheduled from btrfs_rm_dev_replace_srcdev,
can be processed before btrfs_scratch_superblock is called, which would
result in a use-after-free on btrfs_device contents. Fix this by
zeroing the superblock before the rcu callback is registered.
Cc: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/extent_io.c')
0 files changed, 0 insertions, 0 deletions