Description
drivers/input/serio/i8042.c in the Linux kernel before 4.12.4 allows attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact because the port->exists value can change after it is validated.
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 | 4.12.6-1 | — |
| Debian 13 | linux | 4.12.6-1 | — |
| Debian 12 | linux | 4.12.6-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-93.116 | — |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1032.41 | — |
| Ubuntu 16.04 LTS | linux-azure | 4.13.0-1005.7 | — |
| Ubuntu 16.04 LTS | linux-gcp | 4.13.0-1002.5 | — |
| Ubuntu 16.04 LTS | linux-gke | 4.4.0-1028.28 | — |
| Ubuntu 16.04 LTS | linux-hwe | 4.13.0-32.35~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1071.79 | — |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1073.78 | — |
| Ubuntu 14.04 LTS | linux | 3.13.0-149.199 | USN-3655-1 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-93.116~14.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | kernel-xen +3 | 3.12.74-60.64.82.1 | SUSE-SU-2018:0525-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_25 | 1-2.9.1 | SUSE-SU-2018:0525-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.61-52.119.1 | SUSE-SU-2018:0525-1, SUSE-SU-2018:0437-1 |
| SLES 12 | kgraft-patch-SLE12_Update_31 | 1-1.7.1 | SUSE-SU-2018:0437-1 |
| SLES 11 SP4 | cluster-network | 1.4-2.32.4.6 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | drbd | 8.4.4-0.27.4.2 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | drbd-kmp | 8.4.4-0.27.4.6 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | gfs2 | 2-0.24.4.6 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | kernel-ec2 +9 | 3.0.101-108.35.1 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | ocfs2 | 1.6-0.28.5.6 | SUSE-SU-2018:0555-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.106.19.1 | SUSE-SU-2018:0660-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.82.1 | SUSE-SU-2018:0525-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_25 | 1-2.9.1 | SUSE-SU-2018:0525-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-108.35.1 | SUSE-SU-2018:0555-1 |
| SLE Real Time 11 SP4 | cluster-network | 1.4-2.32.4.6 | SUSE-SU-2018:0555-1 |
| SLE Real Time 11 SP4 | drbd-kmp | 8.4.4-0.27.4.6 | SUSE-SU-2018:0555-1 |
| SLE Real Time 11 SP4 | gfs2 | 2-0.24.4.6 | SUSE-SU-2018:0555-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-69.21.1 | SUSE-SU-2018:0841-1 |
| SLE Real Time 11 SP4 | ocfs2 | 1.6-0.28.5.6 | SUSE-SU-2018:0555-1 |
| SUSE OpenStack Cloud 6 | kernel-xen +3 | 3.12.74-60.64.82.1 | SUSE-SU-2018:0525-1 |
| SUSE OpenStack Cloud 6 | kgraft-patch-SLE12-SP1_Update_25 | 1-2.9.1 | SUSE-SU-2018:0525-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.106.19.1 | SUSE-SU-2018:0660-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.29.1.el6uek | 0.4.5-3.el6 | ELSA-2019-4316 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.29.1.el7uek | 0.4.5-3.el7 | ELSA-2019-4316 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.29.1.el7uek | ELSA-2019-4316, ELSA-2019-4315 |
Advisories 8
- USN-3655-1 linux vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- SUSE-SU-2018:0555-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0841-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0660-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0525-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0437-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2019-4316 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 4, 2019
- ELSA-2019-4315 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 3, 2019
References
- 102895 vdb-entry
- https://github.com/torvalds/linux/commit/340d394a789518018f834ff70f7534fc463d3226
- USN-3655-1 vendor-advisory
- USN-3655-2 vendor-advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=340d394a789518018f834ff70f7534fc463d3226
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.4