Description
perfmon (perfmon.c) in Linux kernel on IA64 architectures allows local users to cause a denial of service (crash) by interrupting a task while another process is accessing the mm_struct, which triggers a BUG_ON action in the put_page_testzero function.
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 3.1 | kernel-source-2.6.8 | 2.6.8-16sarge3 | DSA-1103 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | kernel +10 | 2.6.9-55.0.6.EL | RHSA-2007:0774 |
Advisories 2
- RHSA-2007:0774 Red Hat Security Advisory: kernel security and bugfix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1103 kernel-source-2.6.8 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- 19737 third-party-advisory
- ADV-2006-2554 vdb-entry
- ADV-2006-1444 vdb-entry
- oval:org.mitre.oval:def:10177 vdb-entry signature
- DSA-1103 vendor-advisory
- [linux-ia64] [PATCH 1/1] ia64: perfmon.c trips BUG_ON in put_page_testzero mailing-list
- 26709 third-party-advisory
- RHSA-2007:0774 vendor-advisory
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=185082
- 17482 vdb-entry
- 20914 third-party-advisory