Description
Use-after-free vulnerability in net/unix/af_unix.c in the Linux kernel before 4.3.3 allows local users to bypass intended AF_UNIX socket permissions or cause a denial of service (panic) via crafted epoll_ctl calls.
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 14 | linux | 4.2.6-2 | — |
| Debian 13 | linux | 4.2.6-2 | — |
| Debian 12 | linux | 4.2.6-2 | — |
| Debian 8 | linux | 3.16.7-ckt20-1+deb8u1 | DSA-3426-1 |
| Debian 7 | linux | 3.2.73-2+deb7u1 | DSA-3426-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze17 | DLA-360-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-77.121 | USN-2887-1 |
| Ubuntu 14.04 LTS | linux-lts-utopic | 3.16.0-60.80~14.04.1 | USN-2888-1 |
| Ubuntu 14.04 LTS | linux-lts-vivid | 3.19.0-49.55~14.04.1 | USN-2889-2 |
| Ubuntu 14.04 LTS | linux-lts-wily | 4.2.0-27.32~14.04.1 | USN-2890-2 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | kernel-docs +1 | 3.12.53-60.30.2 | SUSE-SU-2016:0585-1 |
| SLES 12 SP1 | kernel-xen +3 | 3.12.53-60.30.1 | SUSE-SU-2016:0585-1 |
| SLES 12 SP1 | lttng-modules | 2.7.0-3.1 | SUSE-SU-2016:0585-1 |
| SLES 12 | kernel-docs +1 | 3.12.55-52.42.2 | SUSE-SU-2016:0785-1 |
| SLES 12 | kernel-ec2 | 3.12.53-60.30.1 | SUSE-SU-2016:0785-1, SUSE-SU-2016:0585-1 |
| SLES 12 | kernel-xen +3 | 3.12.55-52.42.1 | SUSE-SU-2016:0785-1 |
| SLES 12 | kgraft-patch-SLE12_Update_11 | 4-2.2 | SUSE-SU-2016:2010-1 |
| SLES 12 | kgraft-patch-SLE12_Update_12 | 2-2.2 | SUSE-SU-2016:2006-1 |
| SLES 12 | kgraft-patch-SLE12_Update_13 | 2-2.3 | SUSE-SU-2016:2001-1 |
| SLES 12 | kgraft-patch-SLE12_Update_7 | 6-2.2 | SUSE-SU-2016:2014-1 |
| SLES 12 | kgraft-patch-SLE12_Update_8 +2 | 5-2.2 | SUSE-SU-2016:2005-1, SUSE-SU-2016:2002-1, SUSE-SU-2016:1995-1 |
| SLES 11 SP4 | kernel-docs | 3.0.101-71.2 | SUSE-SU-2016:0911-1 |
| SLES 11 SP4 | kernel-ec2 +7 | 3.0.101-71.1 | SUSE-SU-2016:0911-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.79.1 | SUSE-SU-2016:1203-1 |
| SLES 11 SP2 | kernel-ec2 +6 | 3.0.101-0.7.40.1 | SUSE-SU-2016:2074-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.53-60.30.1 | SUSE-SU-2016:0585-1 |
| SLES for SAP 12 SP1 | lttng-modules | 2.7.0-3.1 | SUSE-SU-2016:0585-1 |
| SLES for SAP 12 | kernel-xen +3 | 3.12.55-52.42.1 | SUSE-SU-2016:0785-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_11 | 4-2.2 | SUSE-SU-2016:2010-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_12 | 2-2.2 | SUSE-SU-2016:2006-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_13 | 2-2.3 | SUSE-SU-2016:2001-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_7 | 6-2.2 | SUSE-SU-2016:2014-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_8 +2 | 5-2.2 | SUSE-SU-2016:2005-1, SUSE-SU-2016:2002-1, SUSE-SU-2016:1995-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +7 | 3.0.101-71.1 | SUSE-SU-2016:0911-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-51.1 | SUSE-SU-2016:1102-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_0 | 3-8.2 | SUSE-SU-2016:1961-1, SUSE-SU-2016:0751-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_4 +1 | 2-2.2 | SUSE-SU-2016:2011-1, SUSE-SU-2016:2000-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_11 +2 | 2-2.1 | SUSE-SU-2016:2009-1, SUSE-SU-2016:2003-1, SUSE-SU-2016:0754-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_12 +1 | 1-2.1 | SUSE-SU-2016:2007-1, SUSE-SU-2016:0785-1, SUSE-SU-2016:0585-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_3 +2 | 5-2.1 | SUSE-SU-2016:0750-1, SUSE-SU-2016:0746-1, SUSE-SU-2016:0745-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_6 +1 | 4-2.1 | SUSE-SU-2016:0756-1, SUSE-SU-2016:0753-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_8 +3 | 3-2.1 | SUSE-SU-2016:1994-1, SUSE-SU-2016:0757-1, SUSE-SU-2016:0755-1 |
| SUSE OpenStack Cloud 5 | kernel-ec2 +6 | 3.0.101-0.47.79.1 | SUSE-SU-2016:1203-1 |
| SUSE Manager Proxy 2.1 | kernel-ec2 +6 | 3.0.101-0.47.79.1 | SUSE-SU-2016:1203-1 |
| SUSE Manager 2.1 | kernel-ec2 +6 | 3.0.101-0.47.79.1 | SUSE-SU-2016:1203-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.16.3.el6uek | 0.4.5-3.el6 | ELSA-2017-3515 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.16.3.el7uek | 0.4.5-3.el7 | ELSA-2017-3515 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.16.3.el7uek | ELSA-2017-3515 |
Advisories 39
- USN-2887-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-360-1 linux-2.6 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3426-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2888-1 linux-lts-utopic vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-2889-2 linux-lts-vivid vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-2890-2 linux-lts-wily vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2016:0585-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2002-1 Security update for Linux Kernel Live Patch 10 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2005-1 Security update for Linux Kernel Live Patch 8 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0750-1 Security update for kernel live patch 5 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2011-1 Security update for Linux Kernel Live Patch 6 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2007-1 Security update for Linux Kernel Live Patch 3 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0755-1 Security update for kernel live patch 1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2014-1 Security update for Linux Kernel Live Patch 7 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0752-1 Security update for kernel live patch 2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0754-1 Security update for kernel live patch 11 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1961-1 Security update for Linux Kernel Live Patch 0 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0911-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0745-1 Security update for kernel live patch 3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2001-1 Security update for Linux Kernel Live Patch 13 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2003-1 Security update for Linux Kernel Live Patch 5 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0749-1 Security update for kernel live patch 10 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2000-1 Security update for Linux Kernel Live Patch 4 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0747-1 Security update for kernel live patch 9 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1995-1 Security update for Linux Kernel Live Patch 9 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0751-1 Security update for kernel live patch 0 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0757-1 Security update for kernel live patch 8 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2074-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2010-1 Security update for Linux Kernel Live Patch 11 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1994-1 Security update for Linux Kernel Live Patch 1 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0753-1 Security update for kernel live patch 6 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0746-1 Security update for kernel live patch 4 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0756-1 Security update for kernel live patch 7 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1203-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1102-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2009-1 Security update for Linux Kernel Live Patch 2 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2006-1 Security update for Linux Kernel Live Patch 12 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0785-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2017-3515 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 9, 2017
References
- SUSE-SU-2016:0750 vendor-advisory
- https://groups.google.com/forum/#%21topic/syzkaller/3twDUI4Cpm8
- 1034557 vdb-entry
- SUSE-SU-2016:2010 vendor-advisory
- SUSE-SU-2016:2011 vendor-advisory
- SUSE-SU-2016:2003 vendor-advisory
- SUSE-SU-2016:0751 vendor-advisory
- SUSE-SU-2016:0747 vendor-advisory
- SUSE-SU-2016:0755 vendor-advisory
- SUSE-SU-2016:1994 vendor-advisory
- USN-2887-2 vendor-advisory
- https://forums.grsecurity.net/viewtopic.php?f=3&t=4150
- SUSE-SU-2016:0757 vendor-advisory
- SUSE-SU-2016:1961 vendor-advisory
- SUSE-SU-2016:2001 vendor-advisory
- [netdev] 20150304 [PATCH net] af_unix: don't poll dead peers mailing-list
- SUSE-SU-2016:0753 vendor-advisory
- USN-2886-1 vendor-advisory
- USN-2887-1 vendor-advisory
- USN-2890-3 vendor-advisory
- SUSE-SU-2016:2006 vendor-advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7d267278a9ece963d77eefec61630223fce08c6c
- USN-2889-1 vendor-advisory
- SUSE-SU-2016:2014 vendor-advisory
- openSUSE-SU-2016:1641 vendor-advisory
- USN-2889-2 vendor-advisory
- SUSE-SU-2016:0746 vendor-advisory
- [linux-kernel] 20150913 List corruption on epoll_ctl(EPOLL_CTL_DEL) an AF_UNIX socket mailing-list
- SUSE-SU-2016:0749 vendor-advisory
- SUSE-SU-2016:1102 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.3
- 77638 vdb-entry
- SUSE-SU-2016:2009 vendor-advisory
- SUSE-SU-2016:2005 vendor-advisory
- [linux-kernel] 20140515 eventpoll __list_del_entry corruption (was: perf: use after free in perf_remove_from_context) mailing-list
- SUSE-SU-2016:2007 vendor-advisory
- SUSE-SU-2016:2074 vendor-advisory
- USN-2890-2 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1282688
- SUSE-SU-2016:2000 vendor-advisory
- SUSE-SU-2016:0745 vendor-advisory
- DSA-3426 vendor-advisory
- SUSE-SU-2016:1995 vendor-advisory
- [oss-security] 20151118 Re: CVE request - Linux kernel - Unix sockets use after free - peer_wait_queue prematurely freed mailing-list
- SUSE-SU-2016:2002 vendor-advisory
- [linux-kernel] 20131014 Re: epoll oops. mailing-list
- SUSE-SU-2016:0756 vendor-advisory
- https://github.com/torvalds/linux/commit/7d267278a9ece963d77eefec61630223fce08c6c
- USN-2890-1 vendor-advisory
- SUSE-SU-2016:0754 vendor-advisory
- SUSE-SU-2016:0752 vendor-advisory
- USN-2888-1 vendor-advisory
- SUSE-SU-2016:0911 vendor-advisory