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(parent: f098631) | patch
btrfs: fix invalid-free in btrfs_extent_same
authorLu Fengqi <lufq.fnst@cn.fujitsu.com>
Tue, 19 Jun 2018 06:54:38 +0000 (14:54 +0800)
committerDavid Sterba <dsterba@suse.com>
Thu, 21 Jun 2018 17:21:13 +0000 (19:21 +0200)
commit22883ddc66df402f2fbc37fe1f4d2779238e4b2d
treed0f75b3ecc879da62260f4c7d6b3aa1372595156tree
parentf098631848cd9f4142b6dec7ea95baad846e1670commit | diff
btrfs: fix invalid-free in btrfs_extent_same

If this condition ((BTRFS_I(src)->flags & BTRFS_INODE_NODATASUM) !=
   (BTRFS_I(dst)->flags & BTRFS_INODE_NODATASUM))
is hit, we will go to free the uninitialized cmp.src_pages and
cmp.dst_pages.

Fixes: 67b07bd4bec5 ("Btrfs: reuse cmp workspace in EXTENT_SAME ioctl")
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/ioctl.c diff | blob | history
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