CVE-2009-2909

Integer signedness error in the ax25_setsockopt function in net/ax25/af_ax25.c in the ax25...

4.9 Medium

Integer signedness error in the ax25_setsockopt function in net/ax25/af_ax25.c in the ax25 subsystem in the Linux kernel before 2.6.31.2 allows local users to cause a denial of service (OOPS) via a crafted optlen value in an SO_BINDTODEVICE operation.

Exploit likelihood

0.40%Down 0.9 points since Feb 4, 2022

What each source reports

NVD Score used 4.9

Record: CVE-2009-2909
CVSS 2.0: 4.9 MediumAV:L/AC:L/Au:N/C:N/I:N/A:C
Weakness: CWE-189
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-2909
Updated: 2026-11-02

EUVDEUVD-2009-2897 No score

Record: EUVD-2009-2897
Updated: 2026-11-03

GitHub AdvisoriesGHSA-5f36-8p58-fx88 No score

Integer signedness error in the ax25_setsockopt function in net/ax25/af_ax25.c in the ax25...

Record: GHSA-5f36-8p58-fx88
Updated: 2026-11-02

Affected products

linux kernel

Affected packages

Affected packages
Package	Affected	Fixed
`linux-2.6` Debian:5.0 From an advisory covering 10 CVEs	before 2.6.26-19lenny1, plus listed versions 2.6.26-132.6.26-13lenny22.6.26-13lenny2~bpo40+12.6.26-142.6.26-15 Show 14 moreShow less 2.6.26-15lenny12.6.26-15lenny22.6.26-15lenny32.6.26-15~bpo40+12.6.26-15~bpo40+22.6.26-162.6.26-172.6.26-17lenny12.6.26-17lenny22.6.26-17lenny2~bpo40+12.6.26-17~bpo40+12.6.26-182.6.26-192.6.26-19~bpo40+1	2.6.26-19lenny1
`linux-2.6.24` Debian:4.0 From an advisory covering 18 CVEs	before 2.6.24-6~etchnhalf.9etch1, plus listed versions 2.6.24-5~etchnhalf.12.6.24-6~etchnhalf.12.6.24-6~etchnhalf.22.6.24-6~etchnhalf.32.6.24-6~etchnhalf.4 Show 8 moreShow less 2.6.24-6~etchnhalf.52.6.24-6~etchnhalf.62.6.24-6~etchnhalf.72.6.24-6~etchnhalf.82.6.24-6~etchnhalf.8etch12.6.24-6~etchnhalf.8etch22.6.24-6~etchnhalf.8etch32.6.24-6~etchnhalf.9	2.6.24-6~etchnhalf.9etch1
`linux-2.6` Debian:4.0 From an advisory covering 10 CVEs	before 2.6.18.dfsg.1-26etch1, plus listed versions 2.6.18.dfsg.1-122.6.18.dfsg.1-12etch12.6.18.dfsg.1-12etch22.6.18.dfsg.1-132.6.18.dfsg.1-13etch1 Show 32 moreShow less 2.6.18.dfsg.1-13etch22.6.18.dfsg.1-13etch32.6.18.dfsg.1-13etch42.6.18.dfsg.1-13etch52.6.18.dfsg.1-13etch62.6.18.dfsg.1-13lenny12.6.18.dfsg.1-142.6.18.dfsg.1-152.6.18.dfsg.1-162.6.18.dfsg.1-172.6.18.dfsg.1-17etch12.6.18.dfsg.1-182.6.18.dfsg.1-18etch12.6.18.dfsg.1-18etch32.6.18.dfsg.1-18etch42.6.18.dfsg.1-18etch52.6.18.dfsg.1-18etch62.6.18.dfsg.1-192.6.18.dfsg.1-202.6.18.dfsg.1-212.6.18.dfsg.1-222.6.18.dfsg.1-22etch12.6.18.dfsg.1-22etch22.6.18.dfsg.1-22etch32.6.18.dfsg.1-232.6.18.dfsg.1-23etch12.6.18.dfsg.1-242.6.18.dfsg.1-24etch12.6.18.dfsg.1-24etch22.6.18.dfsg.1-24etch32.6.18.dfsg.1-24etch42.6.18.dfsg.1-26	2.6.18.dfsg.1-26etch1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-2909 is a medium vulnerability (CVSS 4.9) in Linux Kernel, published October 20, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 33rd percentile. No source names a fixed version.

References

Show 10 moreShow less