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| author | Tobias Stoeckmann | 2016-08-28 21:15:59 +0200 |
|---|---|---|
| committer | Karel Zak | 2016-08-29 13:22:24 +0200 |
| commit | 8fa57ab0b5696031da800e243def32bc5265ff6d (patch) | |
| tree | 749c311f55e11d3460b0b6d4d1c58e2ed0ae2b1a /sys-utils/umount.8 | |
| parent | libfdisk: Distinguish between first LBA sector and partition (diff) | |
| download | kernel-qcow2-util-linux-8fa57ab0b5696031da800e243def32bc5265ff6d.tar.gz kernel-qcow2-util-linux-8fa57ab0b5696031da800e243def32bc5265ff6d.tar.xz kernel-qcow2-util-linux-8fa57ab0b5696031da800e243def32bc5265ff6d.zip | |
libblkid: Avoid OOB access on illegal ZFS superblocks
64 bit systems can trigger an out of boundary access while performing
a ZFS superblock probe.
This happens due to a possible integer overflow while calculating
the remaining available bytes. The variable is of type "int" and the
string length is allowed to be larger than INT_MAX, which means that
avail calculation can overflow, circumventing the "avail < 0" check and
therefore accessing memory outside the "buff" array later on.
Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
Diffstat (limited to 'sys-utils/umount.8')
0 files changed, 0 insertions, 0 deletions