| Release Date: | 2021-03-22 | |
| Impact: | None | What is this? |
In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.
See more information about CVE-2021-28971 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
| Base Score: | 5.5 |
| Vector String: | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Version: | 3.0 |
| Attack Vector: | Local |
| Attack Complexity: | Low |
| Privileges Required: | Low |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | High |
| Platform | Errata | Release Date |
| Oracle Linux version 7 (kernel-uek) | ELSA-2021-9220 | 2021-05-10 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2021-9222 | 2021-05-10 |
| Oracle Linux version 7 (kernel-uek-container) | ELSA-2021-9221 | 2021-06-01 |
| Oracle Linux version 7 (kernel-uek-container) | ELSA-2021-9223 | 2021-05-10 |
| Oracle Linux version 8 (kernel) | ELSA-2021-4356 | 2021-11-16 |
| Oracle Linux version 8 (kernel-uek) | ELSA-2021-9220 | 2021-05-10 |
| Oracle Linux version 8 (kernel-uek-container) | ELSA-2021-9221 | 2021-06-01 |
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