Description
In the Linux kernel before 4.7, the amd_gpio_remove function in drivers/pinctrl/pinctrl-amd.c calls the pinctrl_unregister function, leading to a double free.
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.
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 | 4.4.0-141.167 | USN-3848-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1074.84 | USN-3848-1 |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1039.45 | USN-3848-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1102.110 | USN-3848-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1106.111 | USN-3848-1 |
| Ubuntu 14.04 LTS | linux-aws | 4.4.0-1037.40 | USN-3848-2 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-141.167~14.04.1 | USN-3848-2 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1008.10 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | kernel-docs +4 | 4.4.120-94.17.1 | SUSE-SU-2018:0786-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.109.2 | SUSE-SU-2019:1287-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_29 | 1-3.5.2 | SUSE-SU-2019:1287-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.120-94.17.1 | SUSE-SU-2018:0786-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.121-92.109.2 | SUSE-SU-2019:1287-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_29 | 1-3.5.2 | SUSE-SU-2019:1287-1 |
| SLE Real Time 12 SP3 | kernel-rt +3 | 4.4.120-3.8.1 | SUSE-SU-2018:0986-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_10 | 1-4.3.1 | SUSE-SU-2018:0786-1 |
| SUSE OpenStack Cloud 7 | kernel-syms +2 | 4.4.121-92.109.2 | SUSE-SU-2019:1287-1 |
| SUSE OpenStack Cloud 7 | kgraft-patch-SLE12-SP2_Update_29 | 1-3.5.2 | SUSE-SU-2019:1287-1 |
| SUSE Enterprise Storage 4 | kernel-syms +2 | 4.4.121-92.109.2 | SUSE-SU-2019:1287-1 |
| SUSE Enterprise Storage 4 | kgraft-patch-SLE12-SP2_Update_29 | 1-3.5.2 | SUSE-SU-2019:1287-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.24.1.el7uek | ELSA-2019-4315 |
Advisories 6
- USN-3848-1 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3848-2 linux-lts-xenial, linux-aws vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2019:1287-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0986-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0786-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2019-4315 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 3, 2019
References
- USN-3848-2 vendor-advisory
- https://github.com/torvalds/linux/commit/8dca4a41f1ad65043a78c2338d9725f859c8d2c3
- USN-3848-1 vendor-advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8dca4a41f1ad65043a78c2338d9725f859c8d2c3
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=251e22abde21833b3d29577e4d8c7aaccd650eee
- https://github.com/torvalds/linux/commit/251e22abde21833b3d29577e4d8c7aaccd650eee