btrfs: fix use-after-free in mount_subvol()

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Pointer 'newargs' is used after the memory that it points to has already
been freed.

Picked up by Coverity - CID 1201425.

Fixes: 0723a0473f ("btrfs: allow mounting btrfs subvolumes with
different ro/rw options")
Signed-off-by: Christoph Jaeger <christophjaeger@linux.com>
Signed-off-by: Chris Mason <clm@fb.com>

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Christoph Jaeger 2014-04-12 13:33:13 +02:00 • committed by Chris Mason

parent e4fbaee292

commit 0040e606e3

1 changed files with 6 additions and 2 deletions

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8

fs/btrfs/super.c

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