Description
In the Linux kernel, the following vulnerability has been resolved:
crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg
Issuing two writes to the same af_alg socket is bogus as the
data will be interleaved in an unpredictable fashion. Furthermore,
concurrent writes may create inconsistencies in the internal
socket state.
Disallow this by adding a new ctx->write field that indiciates
exclusive ownership for writing.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 2.6.38 | 5.10.245 |
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 | 6.16.9-1 | — |
| Debian 13 | linux | 6.12.57-1 | — |
| Debian 12 | linux | 6.1.158-1 | DSA-6053-1 |
| Debian 11 | linux | 5.10.247-1 | DLA-4404-1 |
| Debian 11 | linux-6.1 | 6.1.158-1~deb11u1 | DLA-4379-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 24.04 LTS | linux-bluefield | 6.8.0-1014.18 | — |
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1082.84 | — |
| Ubuntu 25.10 | linux-azure-fde | No fix yet | — |
| Ubuntu 24.04 LTS | linux | 6.8.0-90.91 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1044.46 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-aws-6.14 | 6.14.0-1018.18~24.04.1 | USN-7921-1 |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1044.50 | USN-7935-1 |
| Ubuntu 24.04 LTS | linux-azure-6.14 | 6.14.0-1017.17~24.04.1 | USN-7934-1 |
| Ubuntu 24.04 LTS | linux-azure-fde | 6.8.0-1046.53 | — |
| Ubuntu 24.04 LTS | linux-azure-nvidia | 6.8.0-1029.32 | USN-7940-2 |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1045.48 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1041.46 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-gkeop | 6.8.0-1028.31 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-hwe-6.14 | 6.14.0-37.37~24.04.1 | USN-7921-1 |
| Ubuntu 24.04 LTS | linux-ibm | 6.8.0-1042.42 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-lowlatency | 6.8.0-90.91.1 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-nvidia | 6.8.0-1044.47 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1044.47.1 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-nvidia-tegra | 6.8.0-1020.20 | — |
| Ubuntu 24.04 LTS | linux-oem-6.14 | 6.14.0-1017.17 | USN-7936-1 |
| Ubuntu 24.04 LTS | linux-oracle | 6.8.0-1041.42 | USN-7931-1 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1044.48 | USN-7931-5 |
| Ubuntu 24.04 LTS | linux-riscv +13 | No fix yet | — |
| Ubuntu 24.04 LTS | linux-riscv-6.14 | 6.14.0-37.37.1~24.04.1 | — |
| Ubuntu 24.04 LTS | linux-xilinx | 6.8.0-1021.22 | USN-7931-4 |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-164.174 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1098.105 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1044.46~22.04.1 | USN-7931-1 |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1102.111 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1044.50~22.04.1 | USN-7935-1 |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1102.111.1 | — |
| Ubuntu 22.04 LTS | linux-azure-fde-6.8 | 6.8.0-1046.53~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1098.107 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-gcp-6.8 | 6.8.0-1045.48~22.04.1 | USN-7931-1 |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1094.100 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1081.89 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 +1 | 6.8.0-90.91~22.04.1 | USN-7931-1 |
| Ubuntu 22.04 LTS | linux-ibm +1 | 5.15.0-1092.95 | USN-7928-4, USN-7928-1 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 | 6.8.0-1042.42~22.04.1 | USN-7931-1 |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1093.99 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1090.95 | USN-7928-5 |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.8 | 6.8.0-90.91.1~22.04.1 | USN-7931-1 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1093.94 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-nvidia-6.8 | 6.8.0-1044.47~22.04.1 | USN-7931-1 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra | 5.15.0-1050.50 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra-igx | 5.15.0-1039.39 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1095.101 | USN-7928-1 |
| Ubuntu 22.04 LTS | linux-oracle-6.8 | 6.8.0-1041.42~22.04.1 | USN-7931-1 |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-xilinx-zynqmp | 5.15.0-1062.66 | USN-7928-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2035.36 | USN-7931-5 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1039.40 | USN-7931-3 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime-6.14 | 6.14.0-1017.17~24.04.1 | USN-7921-2 |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1090.92 | USN-7928-3 |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1097.106 | USN-7928-3 |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1039.40~22.04.1 | USN-7931-3 |
| 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 24.04 LTS | linux-aws-fips | 6.8.0-1044.46+fips1 | USN-7931-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-azure-fips | 6.8.0-1044.50+fips1 | USN-7940-1 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-90.91+fips1 | USN-7931-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-gcp-fips | 6.8.0-1045.48+fips1 | USN-7931-2 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-aws-fips | 5.15.0-1098.105+fips1 | USN-7928-2 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-azure-fips | 5.15.0-1102.111+fips1 | USN-7928-2 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips | 5.15.0-164.174+fips1 | USN-7928-2 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-gcp-fips | 5.15.0-1098.107+fips1 | USN-7928-2 |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1153.163+fips1 | USN-7922-2 |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1157.164+fips1 | USN-7939-2 |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1127.137 | USN-7922-2 |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1156.165+fips1 | USN-7922-2 |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2125.131 | USN-7907-2 |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2104.110 | USN-7937-1 |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1142.154 | USN-7907-2 |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2088.94 | USN-7907-4 |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1120.127 | USN-7930-2 |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux | 5.4.0-224.244 | USN-7922-1 |
| Ubuntu Pro 20.04 LTS | linux-aws | 5.4.0-1153.163 | USN-7922-1 |
| Ubuntu Pro 20.04 LTS | linux-aws-5.15 | 5.15.0-1098.105~20.04.1 | USN-7928-1 |
| Ubuntu Pro 20.04 LTS | linux-azure | 5.4.0-1156.163 | USN-7939-1 |
| Ubuntu Pro 20.04 LTS | linux-azure-5.15 | 5.15.0-1102.111~20.04.1 | USN-7938-1 |
| Ubuntu Pro 20.04 LTS | linux-bluefield | 5.4.0-1112.119 | — |
| Ubuntu Pro 20.04 LTS | linux-gcp | 5.4.0-1156.165 | USN-7922-1 |
| Ubuntu Pro 20.04 LTS | linux-gcp-5.15 | 5.15.0-1098.107~20.04.1 | USN-7928-1 |
| Ubuntu Pro 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-164.174~20.04.1 | USN-7928-1 |
| Ubuntu Pro 20.04 LTS | linux-ibm | 5.4.0-1099.104 | USN-7922-1 |
| Ubuntu Pro 20.04 LTS | linux-ibm-5.15 | 5.15.0-1092.95~20.04.1 | USN-7928-1 |
| Ubuntu Pro 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1093.99~20.04.1 | USN-7928-1 |
| Ubuntu Pro 20.04 LTS | linux-iot | 5.4.0-1057.60 | USN-7922-5 |
| Ubuntu Pro 20.04 LTS | linux-kvm | 5.4.0-1140.149 | USN-7922-1 |
| Ubuntu Pro 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1050.50~20.04.1 | USN-7928-1 |
| Ubuntu Pro 20.04 LTS | linux-oracle | 5.4.0-1151.161 | USN-7922-1 |
| Ubuntu Pro 20.04 LTS | linux-oracle-5.15 | 5.15.0-1095.101~20.04.1 | USN-7928-1 |
| Ubuntu Pro 20.04 LTS | linux-raspi | 5.4.0-1136.149 | USN-7922-4 |
| Ubuntu Pro 20.04 LTS | linux-riscv-5.15 | 5.15.0-1093.97~20.04.2 | — |
| Ubuntu Pro 20.04 LTS | linux-xilinx-zynqmp | 5.4.0-1071.75 | USN-7922-1 |
| Ubuntu Pro 18.04 LTS | linux | 4.15.0-245.257 | USN-7907-1 |
| Ubuntu Pro 18.04 LTS | linux-aws | 4.15.0-1187.200 | USN-7907-1 |
| Ubuntu Pro 18.04 LTS | linux-aws-5.4 | 5.4.0-1153.163~18.04.1 | USN-7922-1 |
| Ubuntu Pro 18.04 LTS | linux-azure-4.15 | 4.15.0-1195.210 | USN-7907-5 |
| Ubuntu Pro 18.04 LTS | linux-azure-5.4 | 5.4.0-1156.163~18.04.1 | USN-7939-1 |
| Ubuntu Pro 18.04 LTS | linux-gcp-4.15 | 4.15.0-1180.197 | USN-7907-3 |
| Ubuntu Pro 18.04 LTS | linux-gcp-5.4 | 5.4.0-1156.165~18.04.1 | USN-7922-1 |
| Ubuntu Pro 18.04 LTS | linux-hwe-5.4 | 5.4.0-224.244~18.04.1 | USN-7922-1 |
| Ubuntu Pro 18.04 LTS | linux-ibm-5.4 | 5.4.0-1099.104~18.04.1 | USN-7922-1 |
| Ubuntu Pro 18.04 LTS | linux-kvm | 4.15.0-1169.174 | USN-7907-1 |
| Ubuntu Pro 18.04 LTS | linux-oracle | 4.15.0-1149.160 | USN-7907-1 |
| Ubuntu Pro 18.04 LTS | linux-oracle-5.4 | 5.4.0-1151.161~18.04.1 | USN-7922-3 |
| Ubuntu Pro 18.04 LTS | linux-raspi-5.4 | 5.4.0-1136.149~18.04.1 | USN-7922-4 |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-276.310 | USN-7930-1 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1188.203 | USN-7930-1 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1187.200~16.04.1 | USN-7907-1 |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1195.210~16.04.1 | USN-7907-5 |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1180.197~16.04.1 | USN-7907-3 |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-245.257~16.04.1 | USN-7907-3 |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1151.162 | USN-7930-1 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1149.160~16.04.1 | USN-7907-5 |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1150.156 | USN-7930-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1195.210~14.04.1 | USN-7907-5 |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-276.310~14.04.1 | USN-7930-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | rv +76 | 6.12.0-211.58.1.el10_2 | RHSA-2026:70498 |
| RHEL 9 | rv +75 | 5.14.0-687.50.1.el9_8 | RHSA-2026:70459 |
| RHEL 8 | kernel-rt +12 | 4.18.0-553.166.1.rt7.507.el8_10 | RHSA-2026:70403 |
| RHEL 8 | perf +26 | 4.18.0-553.166.1.el8_10 | RHSA-2026:70402 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Extras Rt Els 7 | kernel-rt +7 | 3.10.0-1160.164.1.rt56.1316.el7 | RHSA-2026:71657 |
| RHEL 10.0 EUS | rv +77 | 6.12.0-55.106.1.el10_0 | RHSA-2026:71326 |
| RHEL 9.6 EUS | rv +77 | 5.14.0-570.143.1.el9_6 | RHSA-2026:71327 |
| RHEL 9.4 E4S | bpftool | 7.3.0-427.152.1.el9_4 | RHSA-2026:71569 |
| RHEL 9.4 E4S | rv +62 | 5.14.0-427.152.1.el9_4 | RHSA-2026:71569 |
| RHEL 9.2 E4S | bpftool | 7.0.0-284.194.1.el9_2 | RHSA-2026:71601 |
| RHEL 9.2 E4S | kernel-rt +14 | 5.14.0-284.194.1.rt14.479.el9_2 | RHSA-2026:71606 |
| RHEL 9.2 E4S | perf +47 | 5.14.0-284.194.1.el9_2 | RHSA-2026:71601 |
| RHEL 8.8 TUS | perf +17 | 4.18.0-477.170.1.el8_8 | RHSA-2026:71594 |
| RHEL 8.8 E4S | perf +18 | 4.18.0-477.170.1.el8_8 | RHSA-2026:71594 |
| RHEL 8.6 EUS Long Life | perf +25 | 4.18.0-372.218.1.el8_6 | RHSA-2026:71592 |
| RHEL 8.6 AUS | perf +17 | 4.18.0-372.218.1.el8_6 | RHSA-2026:71592 |
| RHEL 8.4 EUS Long Life | perf +25 | 4.18.0-305.209.1.el8_4 | RHSA-2026:71565 |
| RHEL 8.4 AUS | perf +17 | 4.18.0-305.209.1.el8_4 | RHSA-2026:71565 |
| RHEL 7 ELS | perf +18 | 3.10.0-1160.164.1.el7 | RHSA-2026:71687 |
| Red Hat Enterprise Linux Nvidia 10 | rv +41 | 6.12.0-231.20.el10nv | RHSA-2026:73788, RHSA-2026:72059 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | rv +61 | 6.12.0-211.58.1.el10_2 | ALSA-2026:70498 |
| AlmaLinux 9 | rv +73 | 5.14.0-687.50.1.el9_8 | ALSA-2026:70459 |
| AlmaLinux 8 | kernel-rt +9 | 4.18.0-553.166.1.rt7.507.el8_10 | ALSA-2026:70403 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.166.1.el8_10 | ALSA-2026:70402 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | kernel | 6.12.0-211.58.1.el10_2 | RLSA-2026:70498 |
| Rocky Linux 9 | kernel | 5.14.0-687.50.1.el9_8 | RLSA-2026:70459 |
| Rocky Linux 8 | kernel | 4.18.0-553.166.1.el8_10 | RLSA-2026:70402 |
| Rocky Linux 8 | kernel-rt | 4.18.0-553.166.1.rt7.507.el8_10 | RLSA-2026:70403 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | kernel-64kb +7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 |
| SLES 15 SP7 | kernel-default-base | 6.4.0-150700.53.34.1.150700.17.23.1 | SUSE-SU-2026:1081-1 |
| SLES 15 SP6 | kernel-64kb +6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.92.1.150600.12.42.2 | SUSE-SU-2026:1041-1 |
| SLES 15 SP5 | kernel-64kb +4 | 5.14.21-150500.55.192.2 | SUSE-SU-2026:4667-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.192.2.150500.6.89.2 | SUSE-SU-2026:4667-1 |
| SLES 15 SP5 | kernel-docs +1 | 5.14.21-150500.55.192.1 | SUSE-SU-2026:4667-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.243.1 | SUSE-SU-2026:4668-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.243.1.150400.24.122.1 | SUSE-SU-2026:4668-1 |
| SLES 12 SP5 | kernel-syms +2 | 4.12.14-122.296.1 | SUSE-SU-2026:4282-1, SUSE-SU-2026:1078-1 |
Show 19 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | kernel-64kb +8 | 6.12.0-160000.27.1 | SUSE-SU-2026:23231-1, SUSE-SU-2026:23221-1, SUSE-SU-2026:20931-1 |
| SLES for SAP 16.0 | kernel-default-base | 6.12.0-160000.27.1.160000.2.8 | SUSE-SU-2026:23231-1, SUSE-SU-2026:23221-1, SUSE-SU-2026:20931-1 |
| SLES for SAP 15 SP6 | kernel-default-base | 6.4.0-150600.23.92.1.150600.12.42.2 | SUSE-SU-2026:1041-1 |
| SLES for SAP 15 SP6 | kernel-docs +4 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 |
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.192.2.150500.6.89.2 | SUSE-SU-2026:4667-1 |
| SLES for SAP 15 SP5 | kernel-docs +1 | 5.14.21-150500.55.192.1 | SUSE-SU-2026:4667-1 |
| SLES for SAP 15 SP5 | kernel-source +2 | 5.14.21-150500.55.192.2 | SUSE-SU-2026:4667-1 |
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.243.1.150400.24.122.1 | SUSE-SU-2026:4668-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.243.1 | SUSE-SU-2026:4668-1 |
| SLES 16.0 | kernel-64kb +8 | 6.12.0-160000.27.1 | SUSE-SU-2026:23237-1, SUSE-SU-2026:23231-1, SUSE-SU-2026:23221-1 |
| SLES 16.0 | kernel-default-base | 6.12.0-160000.27.1.160000.2.8 | SUSE-SU-2026:23231-1, SUSE-SU-2026:23221-1, SUSE-SU-2026:20931-1 |
| SLE Micro 6.2 | kernel-default-base | 6.12.0-160000.27.1.160000.2.8 | SUSE-SU-2026:23068-1, SUSE-SU-2026:20838-1 |
| SLE Micro 6.2 | kernel-rt +5 | 6.12.0-160000.27.1 | SUSE-SU-2026:23068-1, SUSE-SU-2026:23066-1, SUSE-SU-2026:20873-1 |
| SLE Micro 6.1 | kernel-default-base | 6.4.0-40.1.21.17 | SUSE-SU-2026:23529-1, SUSE-SU-2026:20667-1 |
| SLE Micro 6.1 | kernel-rt +4 | 6.4.0-40.1 | SUSE-SU-2026:23529-1, SUSE-SU-2026:23528-1, SUSE-SU-2026:20876-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-40.1.21.17 | SUSE-SU-2026:23481-1, SUSE-SU-2026:20720-1 |
| SLE Micro 6.0 | kernel-rt +4 | 6.4.0-40.1 | SUSE-SU-2026:23481-1, SUSE-SU-2026:23477-1, SUSE-SU-2026:20845-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.192.2.150500.6.89.2 | SUSE-SU-2026:4667-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.164.1 | SUSE-SU-2026:4665-1 |
| SLE Micro 5.5 | kernel-source +1 | 5.14.21-150500.55.192.2 | SUSE-SU-2026:4667-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.243.1.150400.24.122.1 | SUSE-SU-2026:4668-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.189.1 | SUSE-SU-2026:4666-1 |
| SLE Micro 5.4 | kernel-source +1 | 5.14.21-150400.24.243.1 | SUSE-SU-2026:4668-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.243.1.150400.24.122.1 | SUSE-SU-2026:4668-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.189.1 | SUSE-SU-2026:4666-1 |
| SLE Micro 5.3 | kernel-source +1 | 5.14.21-150400.24.243.1 | SUSE-SU-2026:4668-1 |
| SLE Live Patching 15 SP7 | kernel-default | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_10 +1 | 1-150700.1.3.1 | SUSE-SU-2026:4120-1, SUSE-SU-2026:0962-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_10 | 1-150700.15.3.1 | SUSE-SU-2026:1081-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_21 | 1-150600.13.5.1 | SUSE-SU-2026:1041-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.192.2 | SUSE-SU-2026:4667-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_46 | 1-150500.11.3.2 | SUSE-SU-2026:4667-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.243.1 | SUSE-SU-2026:4668-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_60 | 1-150400.9.3.1 | SUSE-SU-2026:4668-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.296.1 | SUSE-SU-2026:4282-1, SUSE-SU-2026:1078-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_78 | 1-8.3.1 | SUSE-SU-2026:1078-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_87 | 1-8.5.1 | SUSE-SU-2026:4282-1 |
| SLE HPC 15 SP5 | kernel-64kb +3 | 5.14.21-150500.55.192.2 | SUSE-SU-2026:4667-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.192.2.150500.6.89.2 | SUSE-SU-2026:4667-1 |
| SLE HPC 15 SP5 | kernel-docs +1 | 5.14.21-150500.55.192.1 | SUSE-SU-2026:4667-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.243.1 | SUSE-SU-2026:4668-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.243.1.150400.24.122.1 | SUSE-SU-2026:4668-1 |
| SUSE Real Time Module 15 SP7 | kernel-rt +2 | 6.4.0-150700.7.34.1 | SUSE-SU-2026:4120-1, SUSE-SU-2026:0962-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | kernel-default-base | 6.12.0-160000.27.1.160000.2.8 | openSUSE-SU-2026:21555-1, openSUSE-SU-2026:20416-1 |
| openSUSE Leap 16.0 | kernel-rt +11 | 6.12.0-160000.27.1 | openSUSE-SU-2026:21555-1, openSUSE-SU-2026:20416-1 |
| openSUSE Leap 15.6 | dtb-aarch64 +10 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.92.1.150600.12.42.2 | SUSE-SU-2026:1041-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.12.53-69.119 +1 | 1:1.0-0.amzn2023 | ALAS2023-2025-1254, ALAS2023-2025-1223 |
| Amazon Linux 2023 | perf +14 | 1:6.1.155-176.282.amzn2023 | ALAS2023-2025-1223 |
| Amazon Linux 2023 | perf6.12 +14 | 1:6.12.53-69.119.amzn2023 | ALAS2023-2025-1254 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | kernel | 6.6.112.1-1 | — |
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.200.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | rv +29 | 6.12.0-211.60.1.el10_2 | ELSA-2026-70498 |
| Oracle Linux 9 | kernel-uek +34 | 6.12.0-104.43.4.3.el10uek | ELSA-2025-20719 |
| Oracle Linux 9 | rv +28 | 5.14.0-687.50.1.el9_8 | ELSA-2026-70459 |
| Oracle Linux 8 | kernel-uek +17 | 5.15.0-313.189.5.2.el9uek | ELSA-2025-28048, ELSA-2025-25757, ELSA-2025-20721 |
| Oracle Linux 8 | perf +19 | 4.18.0-553.168.1.el8_10 | ELSA-2026-70402, ELSA-2025-28048, ELSA-2025-25757 |
| Oracle Linux 7 | kernel-uek +6 | 5.4.17-2136.351.3.2.el8uek | ELSA-2026-50100, ELSA-2026-50061 |
| Oracle Linux 7 | kernel-uek-tools | 5.4.17-2136.351.3.2.el7uek | ELSA-2026-50100, ELSA-2026-50061 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 2 repositories
-
n1k0oowang/CVE-2025-39964_EXP ★ 3 · Nov 13, 2025
CVE-2025-39964 EXP
-
suominen/CVE-2025-39964 ★ 0 · Sep 20, 2026
Tracking CVE-2025-39964, the Linux kernel AF_ALG concurrent-write race
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 50
- RHSA-2026:70402 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:70403 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:70459 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:70498 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- VDE-2026-143 Bender EDGE500IP Vulnerabilities - Linux Kernel (TLS and AF_ALG) CERT@VDE · Nov 10, 2026
- SSA-457936 SSA-457936: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.7 Siemens ProductCERT · Nov 10, 2026
- WID-SEC-2025-2268 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 3, 2026
- USN-7940-2 linux-azure-nvidia vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7938-1 linux-azure-5.15 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7934-1 linux-azure, linux-azure-6.14 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7940-1 linux-azure-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7935-1 linux-azure, linux-azure-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7939-1 linux-azure, linux-azure-5.4 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7939-2 linux-azure-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7937-1 linux-azure-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7928-1 linux, linux-aws, linux-aws-5.15, linux-azure, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx, linux-oracle, linux-oracle-5.15, linux-xilinx-zynqmp vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7936-1 linux-oem-6.14 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7931-5 linux-raspi, linux-raspi-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7931-4 linux-xilinx vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7931-1 linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-oracle, linux-oracle-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7931-3 linux-realtime, linux-realtime-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7930-2 linux-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7931-2 linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7928-2 linux-fips, linux-aws-fips, linux-azure-fips, linux-gcp-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7928-4 linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7907-1 linux, linux-aws, linux-aws-hwe, linux-kvm, linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7922-2 linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7922-4 linux-raspi, linux-raspi-5.4 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7922-5 linux-iot vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7928-3 linux-realtime, linux-intel-iot-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7922-1 linux, linux-aws, linux-aws-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-xilinx-zynqmp vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7907-2 linux-aws-fips, linux-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7907-5 linux-azure, linux-azure-4.15, linux-oracle, vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7907-3 linux-gcp, linux-gcp-4.15, linux-hwe vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7907-4 linux-gcp-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7921-2 linux-realtime-6.14 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7930-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7928-5 linux-kvm vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7921-1 linux, linux-aws, linux-aws-6.14, linux-gcp, linux-hwe-6.14, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7922-3 linux-oracle-5.4 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- ALSA-2026:70498 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:70459 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:70403 Important: kernel-rt security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:70402 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ICSA-26-295-11 Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP CISA ICS & IT advisories · Oct 22, 2026
- SUSE-SU-2026:4666-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 16, 2026
- SUSE-SU-2026:4667-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 16, 2026
- RHSA-2026:73788 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2026:72059 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2026:71687 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Oct 16, 2026
References
- https://git.kernel.org/stable/c/0f28c4adbc4a97437874c9b669fd7958a8c6d6ce
- https://git.kernel.org/stable/c/e4c1ec11132ec466f7362a95f36a506ce4dc08c9
- https://git.kernel.org/stable/c/1f323a48e9b5ebfe6dc7d130fdf5c3c0e92a07c8
- https://git.kernel.org/stable/c/7c4491b5644e3a3708f3dbd7591be0a570135b84
- https://git.kernel.org/stable/c/9aee87da5572b3a14075f501752e209801160d3d
- https://git.kernel.org/stable/c/45bcf60fe49b37daab1acee57b27211ad1574042
- https://git.kernel.org/stable/c/1b34cbbf4f011a121ef7b2d7d6e6920a036d5285