Description
The unw_unwind_to_user function in unwind.c on Itanium (ia64) architectures in Linux kernel 2.6 allows local users to cause a denial of service (system crash).
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 3.0 | kernel-image-sparc-2.4 | 26woody1 | DSA-1070-1 |
| Debian 3.0 | kernel-patch-2.4.19-mips | 2.4.19-0.020911.1.woody5 | DSA-1070-1 |
| Debian 3.0 | kernel-source-2.4.16 | 2.4.16-1woody2 | DSA-1067-1 |
| Debian 3.0 | kernel-source-2.4.17 | 2.4.17-1woody4 | DSA-1082-1 |
| Debian 3.0 | kernel-source-2.4.19 | 2.4.19-4.woody3 | DSA-1070-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | kernel +6 | 2.6.9-5.0.5.EL | RHSA-2005:366 |
| RHEL 3 | kernel +8 | 2.4.21-27.0.4.EL | RHSA-2005:293 |
Advisories 5
- RHSA-2005:366 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2005:293 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1082-1 kernel-source-2.4.17 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1067-1 kernel-source-2.4.16 - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1070-1 kernel-source-2.4.19 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- 20163 third-party-advisory
- 15019 third-party-advisory
- DSA-1082 vendor-advisory
- RHSA-2005:366 vendor-advisory
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=148868
- DSA-1070 vendor-advisory
- http://linux.bkbits.net:8080/linux-2.6/cset%4041f2beablXVnAs_6fznhhITh1j5hZg
- oval:org.mitre.oval:def:9040 vdb-entry signature
- DSA-1067 vendor-advisory
- DSA-1069 vendor-advisory
- 13266 vdb-entry
- RHSA-2005:293 vendor-advisory
- RHSA-2005:284 vendor-advisory
- 20202 third-party-advisory
- 20338 third-party-advisory