fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.
https://bugzilla.redhat.com/show_bug.cgi?id=747942
https://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3
http://www.openwall.com/lists/oss-security/2011/10/24/2
Source: MITRE
Published: 2013-03-01
Updated: 2023-02-13
Type: NVD-CWE-noinfo
Base Score: 4
Vector: AV:L/AC:H/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 1.9
Severity: MEDIUM