CVE-2021-38200
5.5 MEDIUMarch/powerpc/perf/core-book3s.c in the Linux kernel before 5.12.13, on systems with perf_event_paranoid=-1 and no specific PMU driver sup...
Published: 2021-08-08 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CWE
- CWE-476
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
arch/powerpc/perf/core-book3s.c in the Linux kernel before 5.12.13, on systems with perf_event_paranoid=-1 and no specific PMU driver support registered, allows local users to cause a denial of service (perf_instruction_pointer NULL pointer dereference and OOPS) via a "perf record" command.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-38200
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13
- [Patch]https://github.com/torvalds/linux/commit/60b7ed54a41b550d50caf7f2418db4a7e75b5bdc
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13
- [Patch]https://github.com/torvalds/linux/commit/60b7ed54a41b550d50caf7f2418db4a7e75b5bdc
Related CVEs
Same vendor
- CVE-2026-46273 — In the Linux kernel, the following vulnerability has been resolved: ibmveth: Disable GSO for packets with small MSS Some physical adapt... (8.6 HIGH)
- CVE-2026-46272 — In the Linux kernel, the following vulnerability has been resolved: coresight: tmc-etr: Fix race condition between sysfs and perf mode ... (4.7 MEDIUM)
- CVE-2026-46271 — In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads only on primary link In case of multi... (7.8 HIGH)
- CVE-2026-46270 — In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: Fix use-after-free in power_supply_changed() ... (8.4 HIGH)
- CVE-2026-46269 — In the Linux kernel, the following vulnerability has been resolved: pinctrl: canaan: k230: Fix NULL pointer dereference when parsing dev... (5.5 MEDIUM)
Same CWE
- CVE-2026-12329 — Memory safety bug fixed in Thunderbird ESR 140.12 (5.3 MEDIUM)
- CVE-2025-70102 — A NULL pointer dereference occurs in Roy Marples NetworkConfiguration/dhcpcd 10.3.0 while parsing configuration options (6.3 MEDIUM)
- CVE-2025-55663 — A segmentation violation in the Track_SetStreamDescriptor function (isomedia/track.c) of GPAC MP4Box v2.4 allows attackers to cause a Den... (5.5 MEDIUM)
- CVE-2025-55649 — A NULL pointer dereference in the gf_media_map_esd function (media_tools/isom_tools.c) of GPAC MP4Box v2.4 allows attackers to cause a De... (5.5 MEDIUM)
- CVE-2025-55643 — A NULL pointer dereference in the TrackWriter handling component (filters/mux_isom.c) of GPAC MP4Box v2.4 allows attackers to cause a Den... (5.5 MEDIUM)