Description
The release_one_tty function in drivers/char/tty_io.c in the Linux kernel before 2.6.34-rc4 omits certain required calls to the put_pid function, which has unspecified impact and local attack vectors.
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 5.0 | linux-2.6 | 2.6.26-22lenny1 | DSA-2053-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 1 | kernel-rt +10 | 2.6.24.7-161.el5rt | RHSA-2010:0631 |
Advisories 2
- RHSA-2010:0631 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2053-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- SUSE-SA:2010:031 vendor-advisory
- [oss-security] 20100415 Re: CVE request: kernel: tty: release_one_tty() forgets to put pids mailing-list
- [oss-security] 20100414 Re: Couple of kernel issues mailing-list
- MDVSA-2010:198 vendor-advisory
- [oss-security] 20100414 Couple of kernel issues mailing-list
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.34-rc4
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6da8d866d0d39e9509ff826660f6a86a6757c966
- 40645 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=582076
- [oss-security] 20100415 CVE request: kernel: tty: release_one_tty() forgets to put pids mailing-list
- DSA-2053 vendor-advisory
- 39830 third-party-advisory
- ADV-2010-1857 vdb-entry