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| author | Phillip Lougher <phillip@lougher.demon.co.uk> | 2011-05-24 05:05:22 +0200 |
|---|---|---|
| committer | Phillip Lougher <phillip@lougher.demon.co.uk> | 2011-05-25 19:21:32 +0200 |
| commit | 37986f63c81bf23c856f65fc5e4830550e7f3d5b (patch) | |
| tree | aafcc2078b469fb8fdb6e43255e136fcc7059dc9 /fs/file.c | |
| parent | Squashfs: add sanity checks to xattr reading at mount time (diff) | |
| download | linux-37986f63c81bf23c856f65fc5e4830550e7f3d5b.tar.xz linux-37986f63c81bf23c856f65fc5e4830550e7f3d5b.zip | |
Squashfs: add sanity checks to id reading at mount time
Fsfuzzer generates corrupted filesystems which throw a warn_on in
kmalloc. One of these is due to a corrupted superblock no_ids field.
Fix this by checking that the number of bytes to be read (and allocated)
does not extend into the next filesystem structure.
Also add a couple of other sanity checks of the mount-time id table
structures.
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Diffstat (limited to 'fs/file.c')
0 files changed, 0 insertions, 0 deletions