Description
In the Linux kernel, the following vulnerability has been resolved:
dm-verity: fix buffer overflow in FEC calculation
There's a buffer overflow in dm-verity-fec:
if (neras && *neras <= v->fec->roots)
fio->erasures[(*neras)++] = i;
This allows *neras to reach roots + 1 (the post-increment pushes it past
roots). This value is then passed as no_eras to decode_rs8(). Inside the
RS decoder (lib/reed_solomon/decode_rs.c:113-121), the erasure locator
polynomial loop writes lambda[j] where j can reach nroots + 1 — one
element past the end of lambda[] (which is sized nroots + 1, valid
indices 0..nroots). The out-of-bounds write lands on syn[0], corrupting
the syndrome buffer.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 4.5 | 6.1.191 |
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 | 7.1.5-1 | — |
| Debian 13 | linux | 6.12.115-2 | — |
| Debian 12 | linux | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 24.04 LTS | linux-bluefield | No fix yet | — |
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | No fix yet | — |
| Ubuntu 26.04 LTS | linux | 7.0.0-34.34 | USN-8816-1 |
| Ubuntu 26.04 LTS | linux-aws +1 | 7.0.0-1013.13 | USN-8816-2, USN-8816-1 |
| Ubuntu 26.04 LTS | linux-azure | 7.0.0-1017.17 | USN-8888-1 |
| Ubuntu 26.04 LTS | linux-azure-fde | 7.0.0-1016.16 | USN-8888-1 |
| Ubuntu 26.04 LTS | linux-gke | 7.0.0-1007.8 | USN-8816-4 |
| Ubuntu 26.04 LTS | linux-ibm +1 | 7.0.0-1014.14 | USN-8816-2, USN-8816-1 |
| Ubuntu 26.04 LTS | linux-nvidia | 7.0.0-1025.26 | USN-9043-1 |
| Ubuntu 26.04 LTS | linux-nvidia-bos | 7.0.0-2022.23 | USN-9003-1 |
| Ubuntu 26.04 LTS | linux-oracle | 7.0.0-1012.12 | USN-8816-1 |
| Ubuntu 26.04 LTS | linux-raspi | 7.0.0-1020.20 | USN-8816-1 |
| Ubuntu 26.04 LTS | linux-riscv +1 | 7.0.0-34.34.1 | USN-8816-1 |
| Ubuntu 24.04 LTS | linux +43 | No fix yet | — |
| Ubuntu 24.04 LTS | linux-aws-7.0 +1 | 7.0.0-1013.13~24.04.1 | USN-8816-2, USN-8816-1 |
| Ubuntu 24.04 LTS | linux-azure-7.0 | 7.0.0-1017.17~24.04.1 | USN-8888-2 |
| Ubuntu 24.04 LTS | linux-azure-fde-7.0 | 7.0.0-1016.16~24.04.1 | USN-8888-2 |
| Ubuntu 24.04 LTS | linux-hwe-7.0 | 7.0.0-34.34~24.04.1 | USN-8816-1 |
| Ubuntu 24.04 LTS | linux-nvidia-7.0 | 7.0.0-1024.25~24.04.1 | USN-9003-1 |
| Ubuntu 24.04 LTS | linux-nvidia-tegra | 6.8.0-1035.38 | USN-8781-1 |
| Ubuntu 24.04 LTS | linux-oracle-7.0 | 7.0.0-1012.12~24.04.1 | USN-8816-3 |
| Ubuntu 24.04 LTS | linux-riscv-7.0 | 7.0.0-34.34.1~24.04.1 | — |
| Ubuntu 22.04 LTS | linux +59 | No fix yet | — |
Show 16 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-realtime +3 | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime +2 | No fix yet | — |
| 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-updates 24.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux +21 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | linux +12 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux-gcp +4 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-azure | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | rv +76 | 6.12.0-211.53.1.el10_2 | RHSA-2026:65334 |
| RHEL 9 | rv +75 | 5.14.0-687.47.1.el9_8 | RHSA-2026:67150 |
| RHEL 8 | kernel-rt +12 | 4.18.0-553.163.1.rt7.504.el8_10 | RHSA-2026:67469 |
| RHEL 8 | perf +26 | 4.18.0-553.163.1.el8_10 | RHSA-2026:67468 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | rv +77 | 6.12.0-55.108.1.el10_0 | RHSA-2026:75560 |
| RHEL 9.6 EUS | rv +77 | 5.14.0-570.146.1.el9_6 | RHSA-2026:74174 |
| RHEL 9.4 E4S | bpftool | 7.3.0-427.153.1.el9_4 | RHSA-2026:73645 |
| RHEL 9.4 E4S | rv +62 | 5.14.0-427.153.1.el9_4 | RHSA-2026:73645 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | rv +74 | 6.12.0-211.53.1.el10_2 | ALSA-2026:65334 |
| AlmaLinux 9 | rv +73 | 5.14.0-687.47.1.el9_8 | ALSA-2026:67150 |
| AlmaLinux 8 | kernel-rt +9 | 4.18.0-553.163.1.rt7.504.el8_10 | ALSA-2026:67469 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.163.1.el8_10 | ALSA-2026:67468 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | kernel | 6.12.0-211.53.1.el10_2 | RLSA-2026:65334 |
| Rocky Linux 9 | kernel | 5.14.0-687.47.1.el9_8 | RLSA-2026:67150 |
| Rocky Linux 8 | kernel | 4.18.0-553.163.1.el8_10 | RLSA-2026:67468 |
| Rocky Linux 8 | kernel-rt | 4.18.0-553.163.1.rt7.504.el8_10 | RLSA-2026:67469 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | kernel-64kb +7 | 6.4.0-150700.53.84.1 | SUSE-SU-2026:4706-1 |
| SLES 15 SP7 | kernel-default-base | 6.4.0-150700.53.84.1.150700.17.47.1 | SUSE-SU-2026:4706-1 |
| SLES 15 SP6 | kernel-64kb +6 | 6.4.0-150600.23.138.1 | SUSE-SU-2026:4660-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.138.1.150600.12.64.1 | SUSE-SU-2026:4660-1 |
| 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 | 4.12.14-122.333.2 | SUSE-SU-2026:4687-1 |
Show 19 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | kernel-64kb +8 | 6.12.0-160000.39.1 | SUSE-SU-2026:24662-1, SUSE-SU-2026:24235-1 |
| SLES for SAP 16.0 | kernel-default-base | 6.12.0-160000.39.1.160000.2.26 | SUSE-SU-2026:24662-1, SUSE-SU-2026:24235-1 |
| SLES for SAP 15 SP6 | kernel-default-base | 6.4.0-150600.23.138.1.150600.12.64.1 | SUSE-SU-2026:4660-1 |
| SLES for SAP 15 SP6 | kernel-docs +4 | 6.4.0-150600.23.138.1 | SUSE-SU-2026:4660-1 |
| 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 | 6.12.0-160000.39.1 | SUSE-SU-2026:24662-1, SUSE-SU-2026:24651-1, SUSE-SU-2026:24235-1 |
| SLES 16.0 | kernel-default-base | 6.12.0-160000.39.1.160000.2.26 | SUSE-SU-2026:24662-1, SUSE-SU-2026:24235-1 |
| SLE Micro 6.2 | kernel-default-base | 6.12.0-160000.39.1.160000.2.26 | SUSE-SU-2026:24643-1, SUSE-SU-2026:24184-1 |
| SLE Micro 6.2 | kernel-rt +5 | 6.12.0-160000.39.1 | SUSE-SU-2026:24648-1, SUSE-SU-2026:24643-1, SUSE-SU-2026:24184-1 |
| SLE Micro 6.2 | podman | 5.4.2-160000.6.1 | SUSE-SU-2026:24182-1 |
| SLE Micro 6.1 | kernel-default-base | 6.4.0-159998.53.1.159998.21.38 | SUSE-SU-2026:24181-1 |
| SLE Micro 6.1 | kernel-rt +4 | 6.4.0-159998.53.1 | SUSE-SU-2026:24182-1, SUSE-SU-2026:24181-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-159998.53.1.159998.21.38 | SUSE-SU-2026:24315-1 |
| SLE Micro 6.0 | kernel-rt +4 | 6.4.0-159998.53.1 | SUSE-SU-2026:24316-1, SUSE-SU-2026:24315-1 |
| 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 | 6.4.0-150700.53.84.1 | SUSE-SU-2026:4706-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_21 | 1-150700.1.3.1 | SUSE-SU-2026:4640-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_22 | 1-150700.15.3.1 | SUSE-SU-2026:4706-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.138.1 | SUSE-SU-2026:4660-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_32 | 1-150600.13.3.1 | SUSE-SU-2026:4660-1 |
| 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 | 4.12.14-122.333.2 | SUSE-SU-2026:4687-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_88 | 1-8.3.3 | SUSE-SU-2026:4687-1 |
| 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 | 6.4.0-150700.7.78.1 | SUSE-SU-2026:4640-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | kernel-default-base | 6.12.0-160000.39.1.160000.2.25 | openSUSE-SU-2026:22091-1 |
| openSUSE Leap 16.0 | kernel-rt +11 | 6.12.0-160000.39.1 | openSUSE-SU-2026:22091-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | kernel | 6.6.161.1-1 | — |
Advisories 46
- USN-9043-1 linux-nvidia vulnerabilities Ubuntu Security Notices (USN) · Nov 12, 2026
- SUSE-SU-2026:24662-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Nov 12, 2026
- SUSE-SU-2026:24651-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Nov 12, 2026
- SUSE-SU-2026:24643-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Nov 12, 2026
- SUSE-SU-2026:24648-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Nov 12, 2026
- USN-9003-1 linux-nvidia-7.0, linux-nvidia-bos vulnerabilities Ubuntu Security Notices (USN) · Nov 12, 2026
- USN-8888-2 linux-azure-7.0, linux-azure-fde-7.0 vulnerabilities Ubuntu Security Notices (USN) · Nov 12, 2026
- USN-8888-1 linux-azure, linux-azure-fde vulnerabilities Ubuntu Security Notices (USN) · Nov 12, 2026
- WID-SEC-2026-2852 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
- USN-8816-1 linux, linux-aws, linux-aws-7.0, linux-hwe-7.0, linux-ibm, linux-oracle, linux-raspi, linux-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 9, 2026
- USN-8816-2 linux-gcp, linux-gcp-7.0, linux-oem-7.0 vulnerabilities Ubuntu Security Notices (USN) · Nov 9, 2026
- USN-8816-4 linux-gke vulnerabilities Ubuntu Security Notices (USN) · Nov 9, 2026
- USN-8816-3 linux-oracle-7.0 vulnerabilities Ubuntu Security Notices (USN) · Nov 9, 2026
- USN-8781-1 linux-nvidia-tegra vulnerabilities Ubuntu Security Notices (USN) · Nov 9, 2026
- ALSA-2026:67150 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:65334 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:67469 Important: kernel-rt security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:67468 Important: kernel security update AlmaLinux Security Advisories · Oct 29, 2026
- SUSE-SU-2026:24315-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 27, 2026
- SUSE-SU-2026:24316-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 27, 2026
- SUSE-SU-2026:24235-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 21, 2026
- SUSE-SU-2026:24197-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 21, 2026
- SUSE-SU-2026:24184-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 20, 2026
- SUSE-SU-2026:24179-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 20, 2026
- SUSE-SU-2026:24181-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 20, 2026
- SUSE-SU-2026:24182-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 20, 2026
- RHSA-2026:75560 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:74174 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:73645 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:67469 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:67468 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:67150 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- openSUSE-SU-2026:22091-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 19, 2026
- RHSA-2026:65334 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- SUSE-SU-2026:4706-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 17, 2026
- SUSE-SU-2026:4667-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 16, 2026
- SUSE-SU-2026:4666-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 16, 2026
- SUSE-SU-2026:4687-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 16, 2026
- SUSE-SU-2026:4668-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 15, 2026
- SUSE-SU-2026:4665-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 15, 2026
- SUSE-SU-2026:4660-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 14, 2026
- SUSE-SU-2026:4640-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Oct 14, 2026
- RLSA-2026:67468 Important: kernel security update Rocky Linux Security Advisories · Sep 16, 2026
- RLSA-2026:67469 Important: kernel-rt security update Rocky Linux Security Advisories · Sep 16, 2026
- RLSA-2026:67150 Important: kernel security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 15, 2026
- RLSA-2026:65334 Important: kernel security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 10, 2026
References
- https://git.kernel.org/stable/c/84d4d2a6988c9a733f7821452cefb5b0d93de2d1
- https://git.kernel.org/stable/c/374775626c327aec2425c16b4d36706e5f8718b8
- https://git.kernel.org/stable/c/dc662eed1c432cc2fd4e9314f58d30b3a8cca7cc
- https://git.kernel.org/stable/c/5488d3a69d205e28f74f18857b853aa12e778e66
- https://git.kernel.org/stable/c/f7990c2b0f08b8841fcd2652d1d7002f5994a7a7
- https://git.kernel.org/stable/c/31d6e6c0ba8d5a7bd59660035a089307100c5e8e