Description
Signedness error in the copy_from_read_buf function in n_tty.c for Linux kernel 2.6.10 and 2.6.11rc1 allows local users to read kernel memory via a negative argument.
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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | kernel +6 | 2.6.9-5.0.5.EL | RHSA-2005:366 |
Advisories 1
- RHSA-2005:366 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- 20050315 [USN-95-1] Linux kernel vulnerabilities mailing-list
- http://linux.bkbits.net:8080/linux-2.6/cset%40420181322LZmhPTewcCOLkubGwOL3w
- RHSA-2005:366 vendor-advisory
- SUSE-SA:2005:018 vendor-advisory
- 20050215 linux kernel 2.6 fun. windoze is a joke mailing-list
- CLA-2005:930 vendor-advisory
- http://www.guninski.com/where_do_you_want_billg_to_go_today_3.html
- oval:org.mitre.oval:def:10960 vdb-entry signature