In the Linux kernel, the following vulnerability has been resolved:
btrfs: output extra debug info if we failed to find an inline backref
[BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref().
[CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist)
[ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernelUpgrade kernel-livepatch-5.10.197-186.748Upgrade bpftoolUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade python-perfUpgrade kernel-headersUpgrade kernel-livepatch-5.15.133-86.144Upgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade perf-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-livepatch-4.14.326-245.539Upgrade kernel-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-devel | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-libbpf-develUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade bpftool-debuginfoUpgrade kernel-libbpf-staticUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade python3-perf-debuginfoUpgrade kernel-develUpgrade kernel-toolsUpgrade python3-perfUpgrade perf-debuginfoUpgrade bpftoolUpgrade kernel-libbpfUpgrade kernel-tools-develUpgrade kernel-debuginfoUpgrade perfUpgrade kernel-livepatch-6.1.55-75.123 | Oct 24, 2025 | Oct 7, 2025 |
| Debian | — | Upgrade linux | Oct 9, 2025 | Oct 9, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 7, 2025 |
| Ubuntu | — | Upgrade linux-hwe-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-azure-5.4Upgrade linux-raspi-5.4Upgrade linux-aws-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-iotUpgrade linux-bluefieldUpgrade linux-awsUpgrade linux-gcp-fipsUpgrade linux-lowlatency-hwe-5.15Upgrade linuxUpgrade linux-azureUpgrade linux-azure-fdeUpgrade linux-ibm-5.4Upgrade linux-gcpUpgrade linux-realtimeUpgrade linux-nvidia-tegraUpgrade linux-riscv-5.15Upgrade linux-oracleUpgrade linux-xilinx-zynqmpUpgrade linux-azure-fde-5.15Upgrade linux-azure-5.15Upgrade linux-nvidia-tegra-igxUpgrade linux-lowlatencyUpgrade linux-aws-fipsUpgrade linux-aws-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-raspiUpgrade linux-intel-iotgUpgrade linux-gkeopUpgrade linux-ibmUpgrade linux-fipsUpgrade linux-oracle-5.15Upgrade linux-nvidiaUpgrade linux-azure-fipsUpgrade linux-hwe-5.4Upgrade linux-gcp-5.15Upgrade linux-kvmUpgrade linux-ibm-5.15Upgrade linux-gcp-5.4Upgrade linux-oracle-5.4Upgrade linux-gke | Oct 10, 2025 | Oct 7, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 15, 2025 | Oct 7, 2025 |
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