fs/btrfs: Integer overflow in btrfs_ioctl_resize()

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The local variable 'new_size' comes from userspace. If a large number
was passed, there would be an integer overflow in the following line:
	new_size = old_size + new_size;

Signed-off-by: Wenliang Fan <fanwlexca@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>

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Wenliang Fan 2013-12-20 15:28:56 +08:00 • committed by Chris Mason

parent c9ea7b24ce

commit eb8052e015

1 changed files with 4 additions and 0 deletions

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fs/btrfs/ioctl.c

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