Description
The inet_diag_bc_audit function in net/ipv4/inet_diag.c in the Linux kernel before 2.6.39.3 does not properly audit INET_DIAG bytecode, which allows local users to cause a denial of service (kernel infinite loop) via crafted INET_DIAG_REQ_BYTECODE instructions in a netlink message, as demonstrated by an INET_DIAG_BC_JMP instruction with a zero yes value, a different vulnerability than CVE-2010-3880.
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 6.0 | linux-2.6 | 2.6.32-39squeeze1 | DSA-2389-1 |
| Debian 5.0 | linux-2.6 | 2.6.26-26lenny4 | DSA-2310-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +14 | 2.6.32-131.12.1.el6 | RHSA-2011:1189 |
| RHEL 5 | kernel +11 | 2.6.18-238.19.1.el5 | RHSA-2011:0927 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 2 | kernel-rt +10 | 2.6.33.9-rt31.75.el6rt | RHSA-2011:1253 |
Advisories 5
- RHSA-2011:1253 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:1189 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2389-1 linux-2.6 - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2310-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2011:0927 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jan 14, 2026
References
- http://patchwork.ozlabs.org/patch/100857/
- [netdev] 20110617 [PATCH] inet_diag: fix inet_diag_bc_audit() mailing-list
- RHSA-2011:0927 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=714536
- [oss-security] 20110620 CVE request: kernel: inet_diag: fix inet_diag_bc_audit() mailing-list
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=eeb1497277d6b1a0a34ed36b97e18f2bd7d6de0d
- [netdev] 20110601 inet_diag insufficient validation? mailing-list
- [netdev] 20110601 Re: inet_diag insufficient validation? mailing-list
- [oss-security] 20110620 Re: CVE request: kernel: inet_diag: fix inet_diag_bc_audit() mailing-list
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3
- [netdev] 20110603 Re: inet_diag insufficient validation? mailing-list
- [oss-security] 20110620 Re: CVE request: kernel: inet_diag: fix inet_diag_bc_audit() mailing-list
- HPSBGN02970 vendor-advisory