Description
The __group_complete_signal function in the RCU signal handling (signal.c) in Linux kernel 2.6.16, and possibly other versions, has unknown impact and attack vectors related to improper use of BUG_ON.
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 |
Advisories 1
- DSA-1103 kernel-source-2.6.8 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- ADV-2006-2554 vdb-entry
- [linux-kernel] 20060411 [PATCH] __group_complete_signal: remove bogus BUG_ON mailing-list
- SUSE-SA:2006:028 vendor-advisory
- DSA-1103 vendor-advisory
- 20398 third-party-advisory
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=188604
- 17640 vdb-entry
- 20914 third-party-advisory