Race condition in the ath_tx_aggr_sleep function in drivers/net/wireless/ath/ath9k/xmit.c in the Linux kernel before 3.13.7 allows remote a…

published 2014-04-01 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-2704

cvss: 7.1; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.7%; EPSS 2.7% chance of exploitation in 30 days, percentile 86%
public exploits: 0; none known

Race condition in the ath_tx_aggr_sleep function in drivers/net/wireless/ath/ath9k/xmit.c in the Linux kernel before 3.13.7 allows remote attackers to cause a denial of service (system crash) via a large amount of network traffic that triggers certain list deletions.

Patch / fix

fixed in 1 distros 2 links 3

linux linux_kernel 3.2.56, 3.4.92, 3.10.42, 3.12.15, 3.13.7

debian red hat

linux Debian 14, Debian 13, Debian 12 3.13.7-1

debian advisories DEBIAN-CVE-2014-2672

kernel RHEL 7 3.10.0-123.6.3.el7
perf RHEL 7 3.10.0-123.6.3.el7
python-perf RHEL 7 3.10.0-123.6.3.el7
kernel-kdump RHEL 7 3.10.0-123.6.3.el7
kernel-tools RHEL 7 3.10.0-123.6.3.el7
kernel-tools-libs RHEL 7 3.10.0-123.6.3.el7
kernel-bootwrapper RHEL 7 3.10.0-123.6.3.el7
kernel-abi-whitelists RHEL 7 3.10.0-123.6.3.el7

red hat advisories RHSA-2014:1023 RHSA-2014:0981 RHSA-2014:1101 RHSA-2014:0557

github.com/torvalds/linux@21f8aae commit
bugzilla.kernel.org/show_bug.cgi?id=70551 advisory
openwall.com/lists/oss-security/2014/03/30/5 advisory

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-2672 updated 2026-11-07 cvss 5.4

kernel: ath9k: tid->sched race in ath_tx_aggr_sleep()

Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-123.6.3.el7, kernel 3.10.0-123.6.3.el7, kernel-tools 3.10.0-123.6.3.el7, kernel-tools-libs 3.10.0-123.6.3.el7, kernel-abi-whitelists 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7 Red Hat Enterprise Linux Client Optional (v. 7) python-perf 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7
fixed: vendor fix RHSA-2014:1023
Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4) kernel 2.6.32-358.48.1.el6, python-perf 2.6.32-358.48.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.48.1.el6
fixed: vendor fix RHSA-2014:1101
Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-123.6.3.el7, kernel 3.10.0-123.6.3.el7, kernel-tools 3.10.0-123.6.3.el7, kernel-tools-libs 3.10.0-123.6.3.el7, kernel-abi-whitelists 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-perf 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7
fixed: vendor fix RHSA-2014:1023
Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-431.23.3.el6, kernel 2.6.32-431.23.3.el6, kernel-firmware 2.6.32-431.23.3.el6, kernel-abi-whitelists 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) kernel 2.6.32-431.23.3.el6, python-perf 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-431.23.3.el6, kernel 2.6.32-431.23.3.el6, kernel-firmware 2.6.32-431.23.3.el6, kernel-abi-whitelists 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6
fixed: vendor fix RHSA-2014:0981
Red Hat Enterprise Linux HPC Node EUS (v. 6.4) perf 2.6.32-358.48.1.el6, kernel 2.6.32-358.48.1.el6, kernel-firmware 2.6.32-358.48.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.48.1.el6
fixed: vendor fix RHSA-2014:1101
Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel 2.6.32-431.23.3.el6, python-perf 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-431.23.3.el6, kernel 2.6.32-431.23.3.el6, kernel-kdump 2.6.32-431.23.3.el6, kernel-firmware 2.6.32-431.23.3.el6, kernel-bootwrapper 2.6.32-431.23.3.el6, kernel-abi-whitelists 2.6.32-431.23.3.el6, +4 more
fixed: vendor fix RHSA-2014:0981
Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-123.6.3.el7, kernel 3.10.0-123.6.3.el7, kernel-kdump 3.10.0-123.6.3.el7, kernel-tools 3.10.0-123.6.3.el7, kernel-tools-libs 3.10.0-123.6.3.el7, kernel-bootwrapper 3.10.0-123.6.3.el7, +4 more
fixed: vendor fix RHSA-2014:1023
Red Hat Enterprise Linux Server EUS (v. 6.4) perf 2.6.32-358.48.1.el6, kernel 2.6.32-358.48.1.el6, kernel-kdump 2.6.32-358.48.1.el6, kernel-firmware 2.6.32-358.48.1.el6, kernel-bootwrapper 2.6.32-358.48.1.el6, kernel-debuginfo-common-i686 2.6.32-358.48.1.el6, +3 more
fixed: vendor fix RHSA-2014:1101

show 9 more

Red Hat Enterprise Linux Server Optional (v. 6) kernel 2.6.32-431.23.3.el6, python-perf 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-ppc64 2.6.32-431.23.3.el6, kernel-debuginfo-common-s390x 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6
fixed: vendor fix RHSA-2014:0981
Red Hat Enterprise Linux Server Optional (v. 7) python-perf 3.10.0-123.6.3.el7, kernel-debuginfo-common-ppc64 3.10.0-123.6.3.el7, kernel-debuginfo-common-s390x 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7
fixed: vendor fix RHSA-2014:1023
Red Hat Enterprise Linux Server Optional EUS (v. 6.4) kernel 2.6.32-358.48.1.el6, python-perf 2.6.32-358.48.1.el6, kernel-debuginfo-common-i686 2.6.32-358.48.1.el6, kernel-debuginfo-common-ppc64 2.6.32-358.48.1.el6, kernel-debuginfo-common-s390x 2.6.32-358.48.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.48.1.el6
fixed: vendor fix RHSA-2014:1101
Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-431.23.3.el6, kernel 2.6.32-431.23.3.el6, kernel-firmware 2.6.32-431.23.3.el6, kernel-abi-whitelists 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6
fixed: vendor fix RHSA-2014:0981
Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-123.6.3.el7, kernel 3.10.0-123.6.3.el7, kernel-tools 3.10.0-123.6.3.el7, kernel-tools-libs 3.10.0-123.6.3.el7, kernel-abi-whitelists 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7
fixed: vendor fix RHSA-2014:1023
Red Hat Enterprise Linux Workstation Optional (v. 6) kernel 2.6.32-431.23.3.el6, python-perf 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6
fixed: vendor fix RHSA-2014:0981
Red Hat Enterprise Linux Workstation Optional (v. 7) python-perf 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7
fixed: vendor fix RHSA-2014:1023
Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.33-rt32.34.el6rt, kernel-rt-trace 3.10.33-rt32.34.el6rt, kernel-rt-vanilla 3.10.33-rt32.34.el6rt, kernel-rt-firmware 3.10.33-rt32.34.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.33-rt32.34.el6rt
fixed: vendor fix RHSA-2014:0557
Red Hat Enterprise Linux 5 kernel
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.74% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	7.1	AV:N/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

Technology feeds

Linux kernel rss critical rss

References

github.com /torvalds/linux/commit/21f8aaee0c62708654988ce092838aa7df4d25d8
patch, third-party-advisory
bugzilla.kernel.org /show_bug.cgi?id=70551
issue-tracking, patch, vendor-advisory
openwall.com /lists/oss-security/2014/03/30/5
mailing-list, patch, third-party-advisory
kernel.org /pub/linux/kernel/v3.x/ChangeLog-3.12.15
release-notes, vendor-advisory
kernel.org /pub/linux/kernel/v3.x/ChangeLog-3.13.7
release-notes, vendor-advisory
git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=21f8aaee0c62708654988ce092838aa7df4d25d8
securityfocus.com /bid/66492
vdb-entry, third-party-advisory
secunia.com /advisories/57468
third-party-advisory

Sources

CVE List CVE-2014-2672
NVD CVE-2014-2672

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary