Description
In the Linux kernel, the following vulnerability has been resolved:
tunnels: fix out of bounds access when building IPv6 PMTU error
If the ICMPv6 error is built from a non-linear skb we get the following
splat,
BUG: KASAN: slab-out-of-bounds in do_csum+0x220/0x240
Read of size 4 at addr ffff88811d402c80 by task netperf/820
CPU: 0 PID: 820 Comm: netperf Not tainted 6.8.0-rc1+ #543
...
kasan_report+0xd8/0x110
do_csum+0x220/0x240
csum_partial+0xc/0x20
skb_tunnel_check_pmtu+0xeb9/0x3280
vxlan_xmit_one+0x14c2/0x4080
vxlan_xmit+0xf61/0x5c00
dev_hard_start_xmit+0xfb/0x510
__dev_queue_xmit+0x7cd/0x32a0
br_dev_queue_push_xmit+0x39d/0x6a0
Use skb_checksum instead of csum_partial who cannot deal with non-linear
SKBs.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.9 | 5.10.210 |
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 | 6.7.7-1 | — |
| Debian 13 | linux | 6.7.7-1 | — |
| Debian 12 | linux | 6.1.82-1 | — |
| Debian 11 | linux | 5.10.216-1 | DSA-5681-1 |
| Debian 10 | linux-5.10 | 5.10.216-1~deb10u1 | DLA-3842-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1043.45 | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-106.116 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1061.67 | USN-6766-3 |
| Ubuntu 22.04 LTS | linux-aws-6.5 | 6.5.0-1023.23~22.04.1 | USN-6895-3 |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1063.72 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-azure-6.5 | 6.5.0-1024.25~22.04.1 | USN-6895-2 |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1063.72.1 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1059.67 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-gcp-6.5 | 6.5.0-1024.26~22.04.1 | USN-6895-2 |
| Ubuntu 22.04 LTS | linux-gke +1 | 5.15.0-1058.63 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1044.51 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.5 | 6.5.0-44.44~22.04.1 | USN-6900-1 |
| Ubuntu 22.04 LTS | linux-ibm +1 | 5.15.0-1054.57 | USN-6766-2, USN-6766-1 |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1057.63 | USN-6795-1 |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.5 | 6.5.0-44.44.1~22.04.1 | USN-6895-3 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1054.55 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-nvidia-6.5 | 6.5.0-1023.24 | USN-6895-1 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra | 5.15.0-1026.26 | — |
| Ubuntu 22.04 LTS | linux-nvidia-tegra-igx | 5.15.0-1015.15 | — |
| Ubuntu 22.04 LTS | linux-oem-6.5 | 6.5.0-1027.28 | USN-6895-4 |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1059.65 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-oracle-6.5 | 6.5.0-1026.26~22.04.1 | USN-6895-3 |
| Ubuntu 22.04 LTS | linux-riscv +22 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-starfive-6.5 | 6.5.0-1017.18~22.04.1 | USN-6895-3 |
| Ubuntu 22.04 LTS | linux-xilinx-zynqmp | 5.15.0-1030.34 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1061.67~20.04.1 | USN-6766-3 |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1063.72~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1063.72~20.04.1.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1059.67~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1044.51~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-106.116~20.04.1 | USN-6766-2, USN-6766-1 |
| Ubuntu 20.04 LTS | linux-ibm-5.15 | 5.15.0-1054.57~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1058.64~20.04.1 | USN-6828-1 |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1027.27~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1059.65~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1057.61~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +13 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2001.1 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1054.56 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1062.70 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-aws-fips | 5.15.0-1061.67+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-azure-fips | 5.15.0-1063.72+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips | 5.15.0-106.116+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-gcp-fips | 5.15.0-1059.67+fips1 | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-553.22.1.rt7.363.el8_10 | RHSA-2024:7001 |
| RHEL 8 | perf +26 | 4.18.0-553.22.1.el8_10 | RHSA-2024:7000 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.8 EUS | perf +26 | 4.18.0-477.74.1.el8_8 | RHSA-2024:6993 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | kernel-rt +11 | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-553.22.1.el8_10 | RLSA-2024:7000 |
| Rocky Linux 8 | kernel-rt | 4.18.0-553.22.1.rt7.363.el8_10 | RLSA-2024:7001 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | kernel-64kb +5 | 6.4.0-150600.23.17.1 | SUSE-SU-2024:2802-1 |
| SLES 15 SP6 | kernel-azure +1 | 6.4.0-150600.8.8.2 | SUSE-SU-2024:2896-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.17.1.150600.12.6.2 | SUSE-SU-2024:2802-1 |
| SLES 15 SP6 | kernel-docs | 6.4.0-150600.23.17.3 | SUSE-SU-2024:2802-1 |
| SLES 15 SP6 | kernel-syms-azure | 6.4.0-150600.8.8.1 | SUSE-SU-2024:2896-1 |
| SLES 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.63.1 | SUSE-SU-2024:2947-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| SLES 15 SP5 | kernel-docs | 5.14.21-150500.55.73.2 | SUSE-SU-2024:2939-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.0 | kernel-default-base | 6.4.0-17.1.1.51 | SUSE-SU-2025:20008-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-9.1 | SUSE-SU-2025:20028-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-18.1 | SUSE-SU-2025:20008-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.17.1 | SUSE-SU-2024:2802-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_1 | 1-150600.1.5.1 | SUSE-SU-2024:2973-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_3 | 1-150600.13.3.1 | SUSE-SU-2024:2802-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_17 +1 | 1-150500.11.3.1 | SUSE-SU-2024:2939-1, SUSE-SU-2024:2894-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.5.1 | SUSE-SU-2024:2973-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | dtb-aarch64 +9 | 6.4.0-150600.23.17.1 | SUSE-SU-2024:2802-1 |
| openSUSE Leap 15.6 | kernel-azure +1 | 6.4.0-150600.8.8.2 | SUSE-SU-2024:2896-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.17.1.150600.12.6.2 | SUSE-SU-2024:2802-1 |
| openSUSE Leap 15.6 | kernel-docs | 6.4.0-150600.23.17.3 | SUSE-SU-2024:2802-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.5.1 | SUSE-SU-2024:2973-1 |
| openSUSE Leap 15.6 | kernel-syms-azure | 6.4.0-150600.8.8.1 | SUSE-SU-2024:2896-1 |
| openSUSE Leap 15.5 | dtb-aarch64 +9 | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.63.1 | SUSE-SU-2024:2947-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| openSUSE Leap 15.5 | kernel-docs | 5.14.21-150500.55.73.2 | SUSE-SU-2024:2939-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | kernel-default | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| openSUSE Leap Micro 5.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| openSUSE Leap Micro 5.5 | kernel-rt | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.79-99.164 | 1.0-0.amzn2023 | ALAS2023-2024-549 |
| Amazon Linux 2023 | perf +14 | 6.1.79-99.164.amzn2023 | ALAS2023-2024-549 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-553.22.1.el8_10 | ELSA-2024-7000 |
Advisories 30
- RHSA-2024:6993 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2024:7000 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2024:7001 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- USN-6766-1 linux, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6766-3 linux-aws, linux-aws-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6828-1 linux-intel-iotg-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6795-1 linux-intel-iotg vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6766-2 linux-hwe-5.15, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- ALSA-2024:7001 Important: kernel-rt security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:7000 Important: kernel security update AlmaLinux Security Advisories · Oct 29, 2026
- USN-6895-3 linux-aws-6.5, linux-lowlatency-hwe-6.5, linux-oracle-6.5, linux-starfive-6.5 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6900-1 linux-hwe-6.5 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6895-2 linux-azure-6.5, linux-gcp-6.5 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6895-1 linux, linux-gcp, linux-nvidia-6.5, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6895-4 linux-oem-6.5 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- WID-SEC-2024-0749 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- SUSE-SU-2025:20008-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20028-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- DSA-5681-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3842-1 linux-5.10 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:7001 Important: kernel-rt security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2024:2973-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2947-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2939-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2896-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- RLSA-2024:7000 Important: kernel security update Rocky Linux Security Advisories · May 7, 2025
- SUSE-SU-2024:2802-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2024:2894-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2023-2024-549 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Mar 10, 2025
- ELSA-2024-7000 Important: kernel security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 24, 2024
References
- https://git.kernel.org/stable/c/e77bf828f1ca1c47fcff58bdc26b60a9d3dfbe1d
- https://git.kernel.org/stable/c/d964dd1bc1452594b4207d9229c157d9386e5d8a
- https://git.kernel.org/stable/c/e37cde7a5716466ff2a76f7f27f0a29b05b9a732
- https://git.kernel.org/stable/c/510c869ffa4068c5f19ff4df51d1e2f3a30aaac1
- https://git.kernel.org/stable/c/7dc9feb8b1705cf00de20563b6bc4831f4c99dab
- https://git.kernel.org/stable/c/d75abeec401f8c86b470e7028a13fcdc87e5dd06