A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.
CVSS Details
- CVSS 3.1 Base Score: 5.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-x86_64Upgrade python-perfUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-headersUpgrade kernel-livepatch-4.14.219-161.340Upgrade python-perf-debuginfoUpgrade perfUpgrade kernel-devel | Feb 22, 2021 | Dec 11, 2020 |
| Amazon_linux | — | Upgrade kernel | Feb 18, 2021 | Dec 11, 2020 |
| Debian | — | Upgrade linux | Feb 3, 2021 | Dec 11, 2020 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Dec 11, 2020 |
| Suse | — | Upgrade kernel-obs-buildUpgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-default-extra | Jan 13, 2021 | Dec 11, 2020 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Dec 11, 2020 |
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