Description
Multiple race conditions in the ext4 filesystem implementation in the Linux kernel before 4.5 allow local users to cause a denial of service (disk corruption) by writing to a page that is associated with a different user's file after unsynchronized hole punching and page-fault handling.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1323577 ↗
- http://www.ubuntu.com/usn/USN-3006-1 ↗
- http://www.securitytracker.com/id/1035455 ↗
- https://github.com/torvalds/linux/commit/ea3d7209ca01da209cda6f0dea8be9cc4b7a933b ↗
- http://www.ubuntu.com/usn/USN-3005-1 ↗
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea3d7209ca01da209cda6f0dea8be9cc4b7a933b ↗
- https://access.redhat.com/errata/RHSA-2017:2669 ↗
- http://www.openwall.com/lists/oss-security/2016/04/01/4 ↗
- http://www.securityfocus.com/bid/85798 ↗
- https://access.redhat.com/errata/RHSA-2017:2077 ↗
- http://www.ubuntu.com/usn/USN-3007-1 ↗
- https://access.redhat.com/errata/RHSA-2017:1842 ↗
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html ↗
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html ↗