CVE-2025-38565
What it is
In the Linux kernel, the following vulnerability has been resolved: perf/core: Exit early on perf_mmap() fail When perf_mmap() fails to allocate a buffer, it still invokes the event_mapped() callback of the related event. On X86 this might increase the perf_rdpmc_allowed reference counter. But nothing undoes this as perf_mmap_close() is never called in this case, which causes another reference count leak. Return early on failure to prevent that.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 5.4.297
- Linux Kernel < 5.10.241
- Linux Kernel < 5.15.190
- Linux Kernel < 6.1.148
- Linux Kernel < 6.6.102
- Linux Kernel < 6.12.42
- Linux Kernel < 6.15.10
- Linux Kernel < 6.16.1
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-38565.md and follow it. Check whether this project is affected by CVE-2025-38565. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/07091aade394f690e7b655578140ef84d0e8d7b0
- https://git.kernel.org/stable/c/163b0d1a209fe0df5476c1df2330ca12b55abf92
- https://git.kernel.org/stable/c/27d44145bd576bbef9bf6165bcd78128ec3e6cbd
- https://git.kernel.org/stable/c/5ffda7f3ed76ec8defc19d985e33b3b82ba07839
- https://git.kernel.org/stable/c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650
- https://git.kernel.org/stable/c/92043120a2e992800580855498ab8507e1b22db9
- https://git.kernel.org/stable/c/9b90a48c7de828a15c7a4fc565d46999c6e22d6b
- https://git.kernel.org/stable/c/de85e72598d89880a02170a1cbc27b35a7d978a9
- https://git.kernel.org/stable/c/f41e9eba77bf97626e04296dc5677d02816d2432
References
- https://git.kernel.org/stable/c/07091aade394f690e7b655578140ef84d0e8d7b0
- https://git.kernel.org/stable/c/163b0d1a209fe0df5476c1df2330ca12b55abf92
- https://git.kernel.org/stable/c/27d44145bd576bbef9bf6165bcd78128ec3e6cbd
- https://git.kernel.org/stable/c/5ffda7f3ed76ec8defc19d985e33b3b82ba07839
- https://git.kernel.org/stable/c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650
- https://git.kernel.org/stable/c/92043120a2e992800580855498ab8507e1b22db9
- https://git.kernel.org/stable/c/9b90a48c7de828a15c7a4fc565d46999c6e22d6b
- https://git.kernel.org/stable/c/de85e72598d89880a02170a1cbc27b35a7d978a9
- https://git.kernel.org/stable/c/f41e9eba77bf97626e04296dc5677d02816d2432
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html