Description
The keyring_search_aux function in security/keys/keyring.c in the Linux kernel through 3.14.79 allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the "dead" type.
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 | 4.0.2-1 | — |
| Debian 13 | linux | 4.0.2-1 | — |
| Debian 12 | linux | 4.0.2-1 | — |
| Debian 7 | linux | 3.2.88-1 | DLA-922-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-riscv +6 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +4 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +4 | No fix yet | — |
| Ubuntu 14.04 LTS | linux | 3.13.0-132.181 | USN-3422-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel-rt +10 | 3.10.0-693.rt56.617.el7 | RHSA-2017:2077 |
| RHEL 7 | perf +17 | 3.10.0-693.el7 | RHSA-2017:1842 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 2 | kernel-rt +10 | 1:3.10.0-693.2.1.rt56.585.el6rt | RHSA-2017:2669 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | kernel-docs | 3.12.74-60.64.40.4 | SUSE-SU-2017:1360-1 |
| SLES 12 SP1 | kernel-xen +4 | 3.12.74-60.64.40.1 | SUSE-SU-2017:1360-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.61-52.101.1 | SUSE-SU-2017:2920-1, SUSE-SU-2017:1360-1 |
| SLES 12 | kgraft-patch-SLE12_Update_28 | 1-8.1 | SUSE-SU-2017:2920-1 |
| SLES 11 SP4 | cluster-network | 1.4-2.32.2.14 | SUSE-SU-2017:2389-1 |
| SLES 11 SP4 | drbd | 8.4.4-0.27.2.1 | SUSE-SU-2017:2389-1 |
| SLES 11 SP4 | drbd-kmp | 8.4.4-0.27.2.13 | SUSE-SU-2017:2389-1 |
| SLES 11 SP4 | gfs2 | 2-0.24.2.14 | SUSE-SU-2017:2389-1 |
| SLES 11 SP4 | kernel-docs | 3.0.101-108.7.2 | SUSE-SU-2017:2389-1 |
| SLES 11 SP4 | kernel-ec2 +8 | 3.0.101-108.7.1 | SUSE-SU-2017:2389-1 |
| SLES 11 SP4 | ocfs2 | 1.6-0.28.3.4 | SUSE-SU-2017:2389-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.106.5.1 | SUSE-SU-2017:2525-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.40.1 | SUSE-SU-2017:1360-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-108.7.1 | SUSE-SU-2017:2389-1 |
| SLE Real Time 11 SP4 | cluster-network | 1.4-2.32.2.14 | SUSE-SU-2017:2389-1 |
| SLE Real Time 11 SP4 | drbd-kmp | 8.4.4-0.27.2.13 | SUSE-SU-2017:2389-1 |
| SLE Real Time 11 SP4 | gfs2 | 2-0.24.2.14 | SUSE-SU-2017:2389-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-69.5.1 | SUSE-SU-2017:2342-1 |
| SLE Real Time 11 SP4 | ocfs2 | 1.6-0.28.3.4 | SUSE-SU-2017:2389-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_15 | 1-4.1 | SUSE-SU-2017:1360-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.106.5.1 | SUSE-SU-2017:2525-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | perf +11 | 3.10.0-693.el7 | ELSA-2017-1842 |
Advisories 11
- RHSA-2017:2669 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:2077 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:1842 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- USN-3422-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-922-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:2389-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2525-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1360-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2920-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2342-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2017-1842 Important: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 7, 2017
References
- 96943 vdb-entry
- RHSA-2017:2669 vendor-advisory
- http://www.spinics.net/lists/keyrings/msg01849.html
- http://www.spinics.net/lists/keyrings/msg01845.html
- RHSA-2017:2077 vendor-advisory
- RHSA-2017:1842 vendor-advisory
- http://www.spinics.net/lists/keyrings/msg01846.html