Vulnerability · Published Jul 19, 2026 · Assigned by Linux
CVE-2026-63994tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]()
Critical 9.8
In plain English
A critical-severity use-after-free 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 0.5% (higher than 44% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 56.0% 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: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() Sashiko found that iptunnel_pmtud_build_icmp() and iptunnel_pmtud_build_icmpv6() were caching ip_hdr() and ipv6_hdr() before an skb_cow() call which can reallocate skb->head. Fix this possible UAF by initializing the local variables after the skb_cow() call. Remove skb_reset_network_header() calls which were not needed.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-64k | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-debug | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-debug-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-debug-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-debug-devel-matched | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-debug-modules | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-debug-modules-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-debug-modules-extra | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-devel-matched | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-modules | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-modules-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-64k-modules-extra | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-abi-stablelists | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-core | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-cross-headers | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-debug | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-debug | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-debug-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-debug-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-debug-devel-matched | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-debug-modules | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-debug-modules-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-debug-modules-extra | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-debug-uki-virt | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-devel | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-devel-matched | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-doc | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-doc | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-headers | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-headers | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-modules | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-modules | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-modules-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-modules-extra | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-modules-extra-matched | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-rt-64k | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-debug | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-debug-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-debug-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-debug-modules | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-debug-modules-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-debug-modules-extra | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-modules | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-modules-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-64k-modules-extra | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt-core | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-rt-debug | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt-debug | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-rt-debug-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt-debug-core | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-rt-debug-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt-debug-devel | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-rt-debug-modules | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt-debug-modules | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-rt-debug-modules-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-debug-modules-extra | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt-debug-modules-extra | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-rt-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt-devel | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-rt-modules | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt-modules | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-rt-modules-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-rt-modules-extra | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-rt-modules-extra | 4.18.0-553.171.1.rt7.512.el8_10 | ALSA-2026:75746 |
| AlmaLinux:10 | kernel-tools | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-tools | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-tools-libs | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-tools-libs-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-uki-virt | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-uki-virt-addons | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-zfcpdump | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-zfcpdump-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-zfcpdump-devel | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-zfcpdump-devel-matched | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-zfcpdump-modules | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | kernel-zfcpdump-modules-core | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | kernel-zfcpdump-modules-extra | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | libperf | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | perf | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | perf | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | python3-perf | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:8 | python3-perf | 4.18.0-553.171.1.el8_10 | ALSA-2026:75747 |
| AlmaLinux:10 | rtla | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| AlmaLinux:10 | rv | 6.12.0-211.63.1.el10_2 | ALSA-2026:76738 |
| Debian:12 | linux | 6.1.176-1 | DEBIAN-CVE-2026-63994 |
| Debian:13 | linux | 6.12.94-1 | DEBIAN-CVE-2026-63994 |
| Debian:14 | linux | 7.0.12-1 | DEBIAN-CVE-2026-63994 |
| Rocky Linux:8 | kernel | 0:4.18.0-553.171.1.el8_10 | RLSA-2026:75747 |
| Rocky Linux:8 | kernel-rt | 0:4.18.0-553.171.1.rt7.512.el8_10 | RLSA-2026:75746 |
| Ubuntu:22.04:LTS | linux | 5.15.0-194.204 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux | 5.15.0-194.204 | USN-8818-4 |
| Ubuntu:24.04:LTS | linux | 6.8.0-142.142 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux | 6.8.0-142.142 | USN-8817-1 |
| Ubuntu:26.04:LTS | linux | 7.0.0-28.28 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1116.123 | USN-8818-1 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1116.123 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1065.68 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1065.68 | USN-8817-3 |
| Ubuntu:26.04:LTS | linux-aws | 7.0.0-1009.9 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-aws-6.14 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-aws-6.17 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1065.68~22.04.1 | USN-8817-3 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1065.68~22.04.1 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1122.131 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1122.131 | USN-8818-1 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1068.76 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1068.76 | USN-8817-1 |
| Ubuntu:26.04:LTS | linux-azure | 7.0.0-1010.10 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure-6.14 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure-6.17 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1068.76~22.04.1 | USN-8817-1 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1068.76~22.04.1 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure-7.0 | 7.0.0-1014.14~24.04.1 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1121.130 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1121.130 | USN-8818-1 |
| Ubuntu:24.04:LTS | linux-azure-fde | 6.8.0-1066.73 | USN-8817-1 |
| Ubuntu:24.04:LTS | linux-azure-fde | 6.8.0-1066.73 | UBUNTU-CVE-2026-63994 |
| Ubuntu:26.04:LTS | linux-azure-fde | 7.0.0-1009.9 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.14 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.17 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.8 | 6.8.0-1066.73~22.04.1 | USN-8817-1 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.8 | 6.8.0-1066.73~22.04.1 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure-fde-7.0 | 7.0.0-1013.13~24.04.1 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-azure-nvidia-6.14 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1117.127 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1117.127 | USN-8818-1 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1069.77 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1069.77 | USN-8817-1 |
| Ubuntu:26.04:LTS | linux-gcp | 7.0.0-1008.8 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-gcp-6.14 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-gcp-6.17 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1069.77~22.04.1 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1069.77~22.04.1 | USN-8817-1 |
| Ubuntu:24.04:LTS | linux-gcp-7.0 | 7.0.0-1011.11~24.04.1 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1112.118 | USN-8818-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1112.118 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1064.72 | USN-8817-1 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1064.72 | UBUNTU-CVE-2026-63994 |
| Ubuntu:26.04:LTS | linux-gke | 7.0.0-1003.4 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1099.107 | USN-8818-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1099.107 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1050.54 | USN-8817-1 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1050.54 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-hwe-6.14 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-hwe-6.17 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-hwe-7.0 | 7.0.0-28.28~24.04.1 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1110.114 | USN-8818-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1110.114 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1065.66 | UBUNTU-CVE-2026-63994 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1065.66 | USN-8817-1 |
| Ubuntu:26.04:LTS | linux-ibm | 7.0.0-1010.10 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1066.67~22.04.1 | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2026-63994 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1111.117 | UBUNTU-CVE-2026-63994 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 4cb47a8644cc9eb8ec81190a50e79e6530d0297f – before 95b6d772bfe788331d9742d73eaa12e113b2adc44cb47a8644cc9eb8ec81190a50e79e6530d0297f – before 7254aef4d1a7e18e887af9010e2f2dc34806789b4cb47a8644cc9eb8ec81190a50e79e6530d0297f – before bf8b3f34c37c162357138e7c0942723b8b94fed14cb47a8644cc9eb8ec81190a50e79e6530d0297f – before 76cd9398a0470257ab765bdf5f358a2af2e179344cb47a8644cc9eb8ec81190a50e79e6530d0297f – before 50750d86a2e5266aba0c295483b3397843198b114cb47a8644cc9eb8ec81190a50e79e6530d0297f – before 6dff77899b9e9fe5d854abda3a98ad04e7229ef74cb47a8644cc9eb8ec81190a50e79e6530d0297f – before f3f204541f280a6ecb04503a0d6794d93990ca434cb47a8644cc9eb8ec81190a50e79e6530d0297f – before b4bc94353050b1fa7b702bd4c6600710dd926cff |
| Linux | Linux | 5.9 |
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://git.kernel.org/stable/c/95b6d772bfe788331d9742d73eaa12e113b2adc4
- https://git.kernel.org/stable/c/7254aef4d1a7e18e887af9010e2f2dc34806789b
- https://git.kernel.org/stable/c/bf8b3f34c37c162357138e7c0942723b8b94fed1
- https://git.kernel.org/stable/c/76cd9398a0470257ab765bdf5f358a2af2e17934
- https://git.kernel.org/stable/c/50750d86a2e5266aba0c295483b3397843198b11
- https://git.kernel.org/stable/c/6dff77899b9e9fe5d854abda3a98ad04e7229ef7
- https://git.kernel.org/stable/c/f3f204541f280a6ecb04503a0d6794d93990ca43
- https://git.kernel.org/stable/c/b4bc94353050b1fa7b702bd4c6600710dd926cff