btrfs: more superblock checks, lower bounds on devices and sectorsize/nodesize

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I received a few crafted images from Jiri, all got through the recently
added superblock checks. The lower bounds checks for num_devices and
sector/node -sizes were missing and caused a crash during mount.

Tools for symbolic code execution were used to prepare the images
contents.

Reported-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

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David Sterba 2014-10-31 17:18:08 +01:00 • committed by Chris Mason

parent 9cc97d6462

commit 75d6ad382b

1 changed files with 19 additions and 0 deletions

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fs/btrfs/disk-io.c

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