In the Linux kernel, the following vulnerability has been resolved:
bfq: Update cgroup information before merging bio
When the process is migrated to a different cgroup (or in case of writeback just starts submitting bios associated with a different cgroup) bfq_merge_bio() can operate with stale cgroup information in bic. Thus the bio can be merged to a request from a different cgroup or it can result in merging of bfqqs for different cgroups or bfqqs of already dead cgroups and causing possible use-after-free issues. Fix the problem by updating cgroup information in bfq_merge_bio().
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-5.10.126-117.518Upgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-livepatch-5.15.50-23.125Upgrade kernel-develUpgrade kernel-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf-debuginfoUpgrade kernel-toolsUpgrade kernel-livepatch-4.14.355-277.643Upgrade python-perfUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade perf-debuginfoUpgrade perfUpgrade bpftool-debuginfo | Apr 10, 2025 | Feb 26, 2025 |
| Amazon_linux | — | Upgrade kernel | May 13, 2025 | Feb 26, 2025 |
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernel-toolsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade bpftool | Jun 11, 2025 | Feb 26, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade python3-perfUpgrade kernelUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-abi-stablelists | Jun 11, 2025 | Feb 26, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-oracle-5.4Upgrade linux-raspi-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-bluefieldUpgrade linuxUpgrade linux-aws-5.15Upgrade linux-awsUpgrade linux-ibm-5.4Upgrade linux-raspiUpgrade linux-iotUpgrade linux-azure-5.15Upgrade linux-gkeopUpgrade linux-realtimeUpgrade linux-aws-fipsUpgrade linux-intel-iotgUpgrade linux-hwe-5.15Upgrade linux-aws-5.4Upgrade linux-riscv-5.15Upgrade linux-azure-5.4Upgrade linux-kvmUpgrade linux-ibmUpgrade linux-gcpUpgrade linux-oracleUpgrade linux-oracle-5.15Upgrade linux-hwe-5.4Upgrade linux-gcp-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-azureUpgrade linux-gkeUpgrade linux-azure-fipsUpgrade linux-fipsUpgrade linux-lowlatencyUpgrade linux-nvidiaUpgrade linux-gcp-5.4Upgrade linux-gcp-5.15 | Mar 3, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 2025 |
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