Description
In the Linux kernel, the following vulnerability has been resolved:
aio: fix mremap after fork null-deref
Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced
a null-deref if mremap is called on an old aio mapping after fork as
mm->ioctx_table will be set to NULL.
[jmoyer@redhat.com: fix 80 column issue]
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 3.19 | 4.14.306 |
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 | 6.1.15-1 | — |
| Debian 13 | linux | 6.1.15-1 | — |
| Debian 12 | linux | 6.1.15-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1017.19 | — |
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-72.79 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1036.40 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1038.45 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1038.45.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1034.42 | — |
| Ubuntu 22.04 LTS | linux-gke +1 | 5.15.0-1033.38 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1020.25 | — |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1030.33 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1030.35 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1025.25 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1035.41 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1029.31 | — |
| Ubuntu 22.04 LTS | linux-riscv +21 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-149.166 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1102.110 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1036.40~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1108.114 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1038.45~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1064.70 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1105.114 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1034.42~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1069.73 | — |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1020.25~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-72.79~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1049.54 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1030.35~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1017.18 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1091.97 | — |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1014.14~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1101.110 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1035.41~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1085.96 | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1033.37~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-xilinx-zynqmp | 5.4.0-1024.28 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-211.222 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1156.169 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1103.111~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1165.180 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1108.114~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1150.166 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1105.114~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-149.166~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1049.54~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1140.145 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1119.130 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1101.110~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1085.96~18.04.1 | — |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1028.33 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1038.41 | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1102.110+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1108.114+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1077.86 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1105.114+fips1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2095.101 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2074.80 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1111.122 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2058.63 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1126.133 | USN-8548-1 |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-283.317 | USN-8548-2 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1194.209 | USN-8548-2 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1156.169~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1165.180~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1150.166~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-211.222~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1157.168 | USN-8548-2 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1119.130~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1156.162 | USN-8548-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1165.180~14.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-283.317~14.04.1 | USN-8548-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.51.1 | SUSE-SU-2024:1644-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.182.1 | SUSE-SU-2024:1643-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.216.1 | SUSE-SU-2025:0834-1, SUSE-SU-2024:2184-1, SUSE-SU-2024:1870-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.182.1 | SUSE-SU-2024:1643-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.216.1 | SUSE-SU-2024:2184-1, SUSE-SU-2024:1870-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.182.1 | SUSE-SU-2024:1983-1, SUSE-SU-2024:1646-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_15 +1 | 1-150500.11.3.1 | SUSE-SU-2024:2190-1, SUSE-SU-2024:2008-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.216.1 | SUSE-SU-2025:0834-1, SUSE-SU-2024:2184-1, SUSE-SU-2024:1870-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_56 +2 | 1-8.3.1 | SUSE-SU-2025:0834-1, SUSE-SU-2024:2184-1, SUSE-SU-2024:1870-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.51.1 | SUSE-SU-2024:1644-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.15-28.43 | 1.0-0.amzn2023 | ALAS2023-2023-127 |
| Amazon Linux 2023 | perf +12 | 6.1.15-28.43.amzn2023 | ALAS2023-2023-127 |
| Amazon Linux 2 | kernel-livepatch-4.14.309-231.529 | 1.0-0.amzn2 | ALAS2-2023-1987 |
| Amazon Linux 2 | perf +8 | 4.14.309-231.529.amzn2 | ALAS2-2023-1987 |
Advisories 15
- USN-8548-2 linux, linux-aws, linux-kvm vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-8548-1 linux-aws, linux-fips, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- WID-SEC-2024-0984 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 13, 2026
- ALAS2-2023-1987 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 8, 2026
- SUSE-SU-2024:1983-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1870-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1646-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2190-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2008-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0834-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1643-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2184-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-0225 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 1, 2025
- ALAS2023-2023-127 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 22, 2025
- SUSE-SU-2024:1644-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
References
- https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95
- https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22
- https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2
- https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f
- https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1
- https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d
- https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1