diff options
| author | Liu Bo <bo.li.liu@oracle.com> | 2016-06-03 12:05:15 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-16 22:16:06 +0100 |
| commit | 41fbc649308c559cb35fec6a2692809ecd52bd62 (patch) | |
| tree | 06604f2e3207a9540e5d79fb5eb0bc7d2b3ceb5a /fs/btrfs/disk-io.c | |
| parent | 66b8c06f936598895397b92b2ab82b77ac642f66 (diff) | |
Btrfs: add validadtion checks for chunk loading
commit e06cd3dd7cea50e87663a88acdfdb7ac1c53a5ca upstream.
To prevent fuzzed filesystem images from panic the whole system,
we need various validation checks to refuse to mount such an image
if btrfs finds any invalid value during loading chunks, including
both sys_array and regular chunks.
Note that these checks may not be sufficient to cover all corner cases,
feel free to add more checks.
Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Reported-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/btrfs/disk-io.c')
0 files changed, 0 insertions, 0 deletions