Vulnerability · Published Apr 2, 2024 · Assigned by Linux
CVE-2024-26665tunnels: fix out of bounds access when building IPv6 PMTU error
Critical 9.1
In plain English
A critical-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.7%top 47.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-core | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-debug | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-devel | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-doc | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-headers | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-modules | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-rt | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-core | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-debug | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-debug-core | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-debug-devel | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-debug-kvm | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-debug-modules | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-debug-modules-extra | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-devel | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-kvm | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-modules | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-rt-modules-extra | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux:8 | kernel-tools | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | perf | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| AlmaLinux:8 | python3-perf | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
| Debian:12 | linux | 6.1.82-1 | DEBIAN-CVE-2024-26665 |
| Debian:13 | linux | 6.7.7-1 | DEBIAN-CVE-2024-26665 |
| Debian:14 | linux | 6.7.7-1 | DEBIAN-CVE-2024-26665 |
| Rocky Linux:8 | kernel | 0:4.18.0-553.22.1.el8_10 | RLSA-2024:7000 |
| Rocky Linux:8 | kernel-rt | 0:4.18.0-553.22.1.rt7.363.el8_10 | RLSA-2024:7001 |
| Ubuntu:22.04:LTS | linux | 5.15.0-106.116 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1061.67 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | 6.5.0-1023.23~22.04.1 | UBUNTU-CVE-2024-26665 |
| 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 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | 6.5.0-1024.25~22.04.1 | UBUNTU-CVE-2024-26665 |
| 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 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1059.67 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | 6.5.0-1024.26~22.04.1 | USN-6895-2 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | 6.5.0-1024.26~22.04.1 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1058.63 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1044.51 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | 6.5.0-44.44~22.04.1 | USN-6900-1 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | 6.5.0-44.44~22.04.1 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1054.57 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1057.63 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1058.63 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-106.116 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | 6.5.0-44.44.1~22.04.1 | UBUNTU-CVE-2024-26665 |
| 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 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | 6.5.0-1023.24 | UBUNTU-CVE-2024-26665 |
| 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-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1015.15 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | 6.5.0-1027.28 | USN-6895-4 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | 6.5.0-1027.28 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1059.65 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | 6.5.0-1026.26~22.04.1 | USN-6895-3 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | 6.5.0-1026.26~22.04.1 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1054.57 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | 6.5.0-1017.18~22.04.1 | USN-6895-3 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | 6.5.0-1017.18~22.04.1 | UBUNTU-CVE-2024-26665 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1030.34 | UBUNTU-CVE-2024-26665 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 4cb47a8644cc9eb8ec81190a50e79e6530d0297f – before e77bf828f1ca1c47fcff58bdc26b60a9d3dfbe1d4cb47a8644cc9eb8ec81190a50e79e6530d0297f – before d964dd1bc1452594b4207d9229c157d9386e5d8a4cb47a8644cc9eb8ec81190a50e79e6530d0297f – before e37cde7a5716466ff2a76f7f27f0a29b05b9a7324cb47a8644cc9eb8ec81190a50e79e6530d0297f – before 510c869ffa4068c5f19ff4df51d1e2f3a30aaac14cb47a8644cc9eb8ec81190a50e79e6530d0297f – before 7dc9feb8b1705cf00de20563b6bc4831f4c99dab4cb47a8644cc9eb8ec81190a50e79e6530d0297f – before d75abeec401f8c86b470e7028a13fcdc87e5dd06 |
| Linux | Linux | 5.9 |
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
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html x_transferred