Description
The chrp_show_cpuinfo function (chrp/setup.c) in Linux kernel 2.4.21 through 2.6.18-53, when running on PowerPC, might allow local users to cause a denial of service (crash) via unknown vectors that cause the of_get_property function to fail, which triggers a NULL pointer dereference.
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 4.0 | linux-2.6 | 2.6.18.dfsg.1-18etch3 | DSA-1565-1 |
| Debian 3.1 | fai-kernels | 1.9.1sarge8 | DSA-1504-1 |
| Debian 3.1 | hostap-modules-i386 | 1:0.3.7-1sarge3 | DSA-1503-1 |
| Debian 3.1 | i2c | 1:2.9.1-1sarge2 | DSA-1503-1 |
| Debian 3.1 | kernel-image-2.4.27-arm +1 | 2.4.27-2sarge6 | DSA-1503-1 |
| Debian 3.1 | kernel-image-2.4.27-m68k | 2.4.27-3sarge6 | DSA-1503-1 |
| Debian 3.1 | kernel-image-2.4.27-sparc | 2.4.27-9sarge6 | DSA-1503-1 |
| Debian 3.1 | kernel-image-2.6.8-hppa | 2.6.8-7sarge1 | DSA-1504-1 |
| Debian 3.1 | kernel-image-2.6.8-ia64 | 2.6.8-15sarge1 | DSA-1504-1 |
| Debian 3.1 | kernel-image-2.6.8-m68k | 2.6.8-5sarge1 | DSA-1504-1 |
| Debian 3.1 | kernel-image-2.6.8-s390 | 2.6.8-6sarge1 | DSA-1504-1 |
| Debian 3.1 | kernel-image-2.6.8-sparc | 2.6.8-16sarge1 | DSA-1504-1 |
| Debian 3.1 | kernel-image-speakup-i386 | 2.4.27-1.1sarge5 | DSA-1503-1 |
| Debian 3.1 | kernel-latest-2.4-alpha | 101sarge3 | DSA-1503-1 |
| Debian 3.1 | kernel-latest-2.4-i386 | 101sarge2 | DSA-1503-1 |
| Debian 3.1 | kernel-latest-2.4-s390 | 2.4.27-1sarge2 | DSA-1503-1 |
| Debian 3.1 | kernel-latest-2.4-sparc | 42sarge3 | DSA-1503-1 |
| Debian 3.1 | kernel-patch-2.4.27-mips | 2.4.27-10.sarge4.040815-3 | DSA-1503-1 |
| Debian 3.1 | kernel-patch-powerpc-2.6.8 | 2.6.8-13sarge1 | DSA-1504-1 |
| Debian 3.1 | kernel-source-2.4.27 +4 | 2.4.27-10sarge6 | DSA-1503-2, DSA-1503-1 |
| Debian 3.1 | kernel-source-2.6.8 +3 | 2.6.8-17sarge1 | DSA-1504-1 |
| Debian 3.1 | mindi-kernel | 2.4.27-2sarge5 | DSA-1503-1 |
| Debian 3.1 | pcmcia-modules-2.4.27-i386 | 3.2.5+2sarge2 | DSA-1503-1 |
| Debian 3.1 | systemimager | 3.2.3-6sarge5 | DSA-1503-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-53.1.14.el5 | RHSA-2008:0154 |
| RHEL 4 | kernel +10 | 2.6.9-67.0.4.EL | RHSA-2008:0055 |
Advisories 6
- RHSA-2008:0154 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2008:0055 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1503-2 kernel-source-2.4.27 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1565-1 linux-2.6 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1503-1 kernelimage-2.4.27 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1504-1 kernel-image-2.6.8 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- 27555 vdb-entry
- RHSA-2008:0154 vendor-advisory
- USN-618-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=396751
- DSA-1565 vendor-advisory
- DSA-1504 vendor-advisory
- 28696 third-party-advisory
- 29236 third-party-advisory
- 30515 third-party-advisory
- USN-614-1 vendor-advisory
- DSA-1503 vendor-advisory
- 28748 third-party-advisory
- oval:org.mitre.oval:def:11215 vdb-entry signature
- 29058 third-party-advisory
- ADV-2008-0380 vdb-entry
- 30769 third-party-advisory
- 30018 third-party-advisory
- RHSA-2008:0055 vendor-advisory
- [linux-kernel] 20071122 [PATCH] PPC: CHRP - fix possible NULL pointer dereference mailing-list