vulnerability
Red Hat: CVE-2020-27825: kernel: use-after-free in the ftrace ring buffer resizing logic due to a race condition
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:M/Au:N/C:P/I:N/A:C) | Dec 11, 2020 | Jul 9, 2025 | Jul 9, 2025 |
Severity
5
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:C)
Published
Dec 11, 2020
Added
Jul 9, 2025
Modified
Jul 9, 2025
Description
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.
Solution
no-fix-redhat-rpm-package
References
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.