{"id":"CVE-2025-38565","state":"PUBLISHED","title":"perf/core: Exit early on perf_mmap() fail","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/core: Exit early on perf_mmap() fail\n\nWhen perf_mmap() fails to allocate a buffer, it still invokes the\nevent_mapped() callback of the related event. On X86 this might increase\nthe perf_rdpmc_allowed reference counter. But nothing undoes this as\nperf_mmap_close() is never called in this case, which causes another\nreference count leak.\n\nReturn early on failure to prevent that.","publishedAt":"2025-08-19T17:02:41.700Z","updatedAt":"2026-05-11T21:30:33.286Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"5ffda7f3ed76ec8defc19d985e33b3b82ba07839","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"9b90a48c7de828a15c7a4fc565d46999c6e22d6b","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"de85e72598d89880a02170a1cbc27b35a7d978a9","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"27d44145bd576bbef9bf6165bcd78128ec3e6cbd","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"f41e9eba77bf97626e04296dc5677d02816d2432","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"92043120a2e992800580855498ab8507e1b22db9","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"163b0d1a209fe0df5476c1df2330ca12b55abf92","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"7ff8521f30c4c2fcd4e88bd7640486602bf8a650","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"07091aade394f690e7b655578140ef84d0e8d7b0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/events/core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.0","versionType":"semver"},{"version":"5.4.297","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.241","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.190","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.148","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.102","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.42","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.10","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16.1","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/events/core.c"]}],"references":["https://git.kernel.org/stable/c/5ffda7f3ed76ec8defc19d985e33b3b82ba07839","https://git.kernel.org/stable/c/9b90a48c7de828a15c7a4fc565d46999c6e22d6b","https://git.kernel.org/stable/c/de85e72598d89880a02170a1cbc27b35a7d978a9","https://git.kernel.org/stable/c/27d44145bd576bbef9bf6165bcd78128ec3e6cbd","https://git.kernel.org/stable/c/f41e9eba77bf97626e04296dc5677d02816d2432","https://git.kernel.org/stable/c/92043120a2e992800580855498ab8507e1b22db9","https://git.kernel.org/stable/c/163b0d1a209fe0df5476c1df2330ca12b55abf92","https://git.kernel.org/stable/c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650","https://git.kernel.org/stable/c/07091aade394f690e7b655578140ef84d0e8d7b0","https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38565.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38565","state":"PUBLISHED","datePublished":"2025-08-19T17:02:41.700Z","dateUpdated":"2026-05-11T21:30:33.286Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:24.025Z"},"containers":{"cna":{"title":"perf/core: Exit early on perf_mmap() fail","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/core: Exit early on perf_mmap() fail\n\nWhen perf_mmap() fails to allocate a buffer, it still invokes the\nevent_mapped() callback of the related event. On X86 this might increase\nthe perf_rdpmc_allowed reference counter. But nothing undoes this as\nperf_mmap_close() is never called in this case, which causes another\nreference count leak.\n\nReturn early on failure to prevent that."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"5ffda7f3ed76ec8defc19d985e33b3b82ba07839","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"9b90a48c7de828a15c7a4fc565d46999c6e22d6b","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"de85e72598d89880a02170a1cbc27b35a7d978a9","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"27d44145bd576bbef9bf6165bcd78128ec3e6cbd","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"f41e9eba77bf97626e04296dc5677d02816d2432","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"92043120a2e992800580855498ab8507e1b22db9","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"163b0d1a209fe0df5476c1df2330ca12b55abf92","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"7ff8521f30c4c2fcd4e88bd7640486602bf8a650","versionType":"git"},{"version":"1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb","status":"affected","lessThan":"07091aade394f690e7b655578140ef84d0e8d7b0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/events/core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.0","versionType":"semver"},{"version":"5.4.297","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.241","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.190","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.148","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.102","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.42","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.10","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16.1","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/events/core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/5ffda7f3ed76ec8defc19d985e33b3b82ba07839"},{"url":"https://git.kernel.org/stable/c/9b90a48c7de828a15c7a4fc565d46999c6e22d6b"},{"url":"https://git.kernel.org/stable/c/de85e72598d89880a02170a1cbc27b35a7d978a9"},{"url":"https://git.kernel.org/stable/c/27d44145bd576bbef9bf6165bcd78128ec3e6cbd"},{"url":"https://git.kernel.org/stable/c/f41e9eba77bf97626e04296dc5677d02816d2432"},{"url":"https://git.kernel.org/stable/c/92043120a2e992800580855498ab8507e1b22db9"},{"url":"https://git.kernel.org/stable/c/163b0d1a209fe0df5476c1df2330ca12b55abf92"},{"url":"https://git.kernel.org/stable/c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650"},{"url":"https://git.kernel.org/stable/c/07091aade394f690e7b655578140ef84d0e8d7b0"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:30:33.286Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.4.297"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.10.241"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.15.190"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"6.1.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"6.6.102"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"6.12.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"6.15.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"6.16.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"6.17"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":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