Description
Multiple buffer underflows in the XFS implementation in the Linux kernel through 3.12.1 allow local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging the CAP_SYS_ADMIN capability for a (1) XFS_IOC_ATTRLIST_BY_HANDLE or (2) XFS_IOC_ATTRLIST_BY_HANDLE_32 ioctl call with a crafted length value, related to the xfs_attrlist_by_handle function in fs/xfs/xfs_ioctl.c and the xfs_compat_attrlist_by_handle function in fs/xfs/xfs_ioctl32.c.
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 14 | linux | 3.11.10-1 | — |
| Debian 13 | linux | 3.11.10-1 | — |
| Debian 12 | linux | 3.11.10-1 | — |
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze5 | DSA-2906-1 |
Advisories 1
- DSA-2906-1 linux-2.6 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- USN-2135-1 vendor-advisory
- USN-2138-1 vendor-advisory
- USN-2113-1 vendor-advisory
- USN-2141-1 vendor-advisory
- [oss-security] 20131122 Linux kernel CVE fixes mailing-list
- USN-2110-1 vendor-advisory
- USN-2129-1 vendor-advisory
- USN-2128-1 vendor-advisory
- USN-2139-1 vendor-advisory
- USN-2158-1 vendor-advisory
- USN-2117-1 vendor-advisory
- 63889 vdb-entry
- USN-2109-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1033603
- [xfs] 20131031 [patch] xfs: underflow bug in xfs_attrlist_by_handle() mailing-list