A use-after-free flaw was found in the Linux Kernel. When a disk is removed, bdi_unregister is called to stop further write-back and waits for associated delayed work to complete. However, wb_inode_writeback_end() may schedule bandwidth estimation work after this has completed, which can result in the timer attempting to access the recently freed bdi_writeback.
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 kernel-livepatch-5.15.69-37.134Upgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade perfUpgrade python-perfUpgrade bpftool-debuginfoUpgrade bpftoolUpgrade kernel-toolsUpgrade kernelUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernel-debuginfo-common-x86_64 | Feb 7, 2024 | Jan 15, 2024 |
| Amazon_linux_2023 | — | Upgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade kernel-headersUpgrade kernel-libbpf-staticUpgrade kernelUpgrade kernel-libbpfUpgrade kernel-libbpf-develUpgrade kernel-livepatch-6.1.10-15.42Upgrade perfUpgrade bpftoolUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade python3-perfUpgrade kernel-tools-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-tools-devel | Feb 17, 2025 | Mar 10, 2023 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Jan 15, 2024 |
| Redhat_linux | — | No solution existsUpgrade kernel | Jan 26, 2024 | Jan 15, 2024 |
| Ubuntu | — | Upgrade linux-gkeUpgrade linux-awsUpgrade linux-gcpUpgrade linuxUpgrade linux-aws-5.15Upgrade linux-nvidiaUpgrade linux-raspiUpgrade linux-gcp-5.15Upgrade linux-oracleUpgrade linux-azure-fde-5.15Upgrade linux-azureUpgrade linux-intel-iotg-5.15Upgrade linux-riscv-5.15Upgrade linux-azure-fdeUpgrade linux-hwe-5.15Upgrade linux-intel-iotgUpgrade linux-lowlatency-hwe-5.15Upgrade linux-gkeopUpgrade linux-oracle-5.15Upgrade linux-gkeop-5.15Upgrade linux-kvmUpgrade linux-realtimeUpgrade linux-lowlatencyUpgrade linux-azure-5.15Upgrade linux-ibm | Nov 19, 2024 | Jan 15, 2024 |
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