UBUNTU-CVE-2021-28971
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.
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
6 explicit affected versions
65 explicit affected versions
26 explicit affected versions
45 explicit affected versions
18 explicit affected versions
75 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
18 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
28 explicit affected versions
36 explicit affected versions
27 explicit affected versions
20 explicit affected versions
10 explicit affected versions
13 explicit affected versions
42 explicit affected versions
1 explicit affected versions
10 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
59 explicit affected versions
1 explicit affected versions
31 explicit affected versions
33 explicit affected versions
10 explicit affected versions
44 explicit affected versions
11 explicit affected versions
67 explicit affected versions
28 explicit affected versions
62 explicit affected versions
24 explicit affected versions
1 explicit affected versions
8 explicit affected versions
21 explicit affected versions
1 explicit affected versions
1 explicit affected versions
24 explicit affected versions
18 explicit affected versions
1 explicit affected versions
19 explicit affected versions
1 explicit affected versions
21 explicit affected versions
8 explicit affected versions
17 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
38 explicit affected versions
9 explicit affected versions
18 explicit affected versions
2 explicit affected versions
75 explicit affected versions
52 explicit affected versions
12 explicit affected versions
43 explicit affected versions
17 explicit affected versions
43 explicit affected versions
1 explicit affected versions
90 explicit affected versions
12 explicit affected versions
21 explicit affected versions
4 explicit affected versions
8 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/d88d05a9e0b6d9356e97129d4ff9942d765f46ea
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d88d05a9e0b6d9356e97129d4ff9942d765f46ea
- https://ubuntu.com/security/CVE-2021-28971
- https://ubuntu.com/security/notices/USN-4948-1
- https://ubuntu.com/security/notices/USN-4979-1
- https://ubuntu.com/security/notices/USN-4982-1
- https://ubuntu.com/security/notices/USN-4984-1
- https://www.cve.org/CVERecord?id=CVE-2021-28971