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-5.15.50-23.125Upgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.10.126-117.518Upgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernelUpgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-4.14.355-277.643Upgrade bpftool-debuginfoUpgrade bpftoolUpgrade python-perfUpgrade perf-debuginfoUpgrade kernel-tools | 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 kernel-toolsUpgrade python3-perfUpgrade bpftoolUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-abi-stablelists | Jun 11, 2025 | Feb 26, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-abi-stablelists | Jun 11, 2025 | Feb 26, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-azure-5.4Upgrade linux-gkeUpgrade linux-realtimeUpgrade linux-oracle-5.15Upgrade linux-hwe-5.15Upgrade linux-lowlatencyUpgrade linux-hwe-5.4Upgrade linux-gcpUpgrade linux-kvmUpgrade linux-azure-5.15Upgrade linux-fipsUpgrade linux-intel-iotgUpgrade linux-intel-iotg-5.15Upgrade linux-aws-fipsUpgrade linux-oracleUpgrade linux-ibmUpgrade linux-azure-fipsUpgrade linux-aws-5.4Upgrade linux-gkeopUpgrade linux-gcp-5.4Upgrade linux-gcp-5.15Upgrade linux-azureUpgrade linux-gcp-fipsUpgrade linux-nvidiaUpgrade linux-riscv-5.15Upgrade linux-raspiUpgrade linux-lowlatency-hwe-5.15Upgrade linux-oracle-5.4Upgrade linux-iotUpgrade linux-ibm-5.4Upgrade linux-bluefieldUpgrade linux-aws-5.15Upgrade linux-raspi-5.4Upgrade linuxUpgrade linux-aws | 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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