In the Linux kernel, the following vulnerability has been resolved:
ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions
While running the self-tests on a KASAN enabled kernel, I observed a slab-out-of-bounds splat very similar to the one reported in commit 821bbf79fe46 ("ipv6: Fix KASAN: slab-out-of-bounds Read in fib6_nh_flush_exceptions").
We additionally need to take care of fib6_metrics initialization failure when the caller provides an nh.
The fix is similar, explicitly free the route instead of calling fib6_info_release on a half-initialized object.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade kernel-toolsUpgrade kernelUpgrade perf-debuginfoUpgrade python-perfUpgrade perfUpgrade kernel-livepatch-5.10.59-52.142Upgrade kernel-tools-develUpgrade kernel-headersUpgrade kernel-debuginfo-common-aarch64Upgrade bpftool-debuginfoUpgrade bpftoolUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo | Feb 3, 2025 | May 21, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 21, 2024 |
| Dell Powerstore Dsa2024462 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Nov 20, 2024 |
| Dell Powerstore Dsa2024497 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Dec 19, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 21, 2024 |
| Ubuntu | — | Upgrade linux-raspiUpgrade linux-fipsUpgrade linux-gcpUpgrade linux-gkeopUpgrade linux-hwe-5.4Upgrade linux-oracle-5.4Upgrade linux-gcp-5.4Upgrade linux-azure-fipsUpgrade linux-ibmUpgrade linux-aws-5.4Upgrade linux-kvmUpgrade linux-oracleUpgrade linux-aws-fipsUpgrade linux-azureUpgrade linux-awsUpgrade linux-bluefieldUpgrade linux-raspi-5.4Upgrade linuxUpgrade linux-gcp-fipsUpgrade linux-azure-5.4 | Nov 19, 2024 | May 21, 2024 |
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