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| author | Theodore Ts'o <tytso@mit.edu> | 2018-03-26 23:54:10 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2018-03-26 23:54:10 -0400 |
| commit | 7dac4a1726a9c64a517d595c40e95e2d0d135f6f (patch) | |
| tree | c750d6e29407cc63499a6659abc2c45635a4bf28 /fs/ext4/file.c | |
| parent | dcae058a8da9c3cfc0055c7937ccd1a3dd0382a8 (diff) | |
ext4: add validity checks for bitmap block numbers
An privileged attacker can cause a crash by mounting a crafted ext4
image which triggers a out-of-bounds read in the function
ext4_valid_block_bitmap() in fs/ext4/balloc.c.
This issue has been assigned CVE-2018-1093.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199181
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1560782
Reported-by: Wen Xu <wen.xu@gatech.edu>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
Diffstat (limited to 'fs/ext4/file.c')
0 files changed, 0 insertions, 0 deletions