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 kernel-livepatch-5.10.197-186.748Upgrade python-perfUpgrade kernel-toolsUpgrade bpftoolUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade kernel-livepatch-5.15.133-86.144Upgrade perf-debuginfoUpgrade kernel-livepatch-4.14.326-245.539Upgrade kernel-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade kernel-headersUpgrade bpftool-debuginfoUpgrade kernel-devel | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernelUpgrade kernel-libbpf-staticUpgrade kernel-libbpf-develUpgrade perfUpgrade perf-debuginfoUpgrade bpftoolUpgrade python3-perfUpgrade python3-perf-debuginfoUpgrade kernel-develUpgrade kernel-livepatch-6.1.55-75.123Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade kernel-libbpfUpgrade kernel-tools-devel | 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-riscv-5.15Upgrade linux-gcp-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-oracleUpgrade linux-ibm-5.15Upgrade linux-hwe-5.4Upgrade linux-oracle-5.15Upgrade linux-azure-fipsUpgrade linux-aws-5.4Upgrade linux-nvidia-tegraUpgrade linux-gkeopUpgrade linux-raspiUpgrade linux-kvmUpgrade linux-ibmUpgrade linux-gcp-5.4Upgrade linux-oracle-5.4Upgrade linux-aws-fipsUpgrade linux-fipsUpgrade linux-gkeUpgrade linux-xilinx-zynqmpUpgrade linux-azure-fde-5.15Upgrade linux-lowlatencyUpgrade linux-intel-iotgUpgrade linux-azure-5.15Upgrade linux-nvidia-tegra-igxUpgrade linux-nvidiaUpgrade linux-gcpUpgrade linuxUpgrade linux-gcp-fipsUpgrade linux-awsUpgrade linux-azure-5.4Upgrade linux-hwe-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-bluefieldUpgrade linux-realtimeUpgrade linux-raspi-5.4Upgrade linux-nvidia-tegra-5.15Upgrade linux-azure-fdeUpgrade linux-aws-5.15Upgrade linux-ibm-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-iotUpgrade linux-azure | 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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