Description
The ldm_parse_vmdb function in fs/partitions/ldm.c in the Linux kernel before 2.6.38-rc6-git6 does not validate the VBLK size value in the VMDB structure in an LDM partition table, which allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted partition table.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 5.0 | linux-2.6 | 2.6.26-26lenny3 | DSA-2264-1 |
Advisories 1
- DSA-2264-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- USN-1146-1 vendor-advisory
- 1025127 vdb-entry
- 46512 vdb-entry
- 8115 third-party-advisory
- [oss-security] 20110223 CVE request: kernel: Corrupted LDM partition table issues mailing-list
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=294f6cf48666825d23c9372ef37631232746e40d
- http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.38-rc6-git6.log
- 20110223 [PRE-SA-2011-01] Multiple Linux kernel vulnerabilities in partition handling code of LDM and MAC partition tables mailing-list
- [oss-security] 20110223 Re: CVE request: kernel: Corrupted LDM partition table issues mailing-list
- [mm-commits] 20110222 + ldm-corrupted-partition-table-can-cause-kernel-oops.patch added to -mm tree mailing-list
- http://www.pre-cert.de/advisories/PRE-SA-2011-01.txt