{"id":"CVE-2025-38322","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel: Fix crash in icl_update_topdown_event()\n\nThe perf_fuzzer found a hard-lockup crash on a RaptorLake machine:\n\n  Oops: general protection fault, maybe for…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel: Fix crash in icl_update_topdown_event()\n\nThe perf_fuzzer found a hard-lockup crash on a RaptorLake machine:\n\n  Oops: general protection fault, maybe for…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 6.1.134, < 6.1.149","linux_kernel >= 6.6.87, < 6.6.101","linux_kernel >= 6.12.23, < 6.12.49","linux_kernel >= 6.13.11, < 6.14","linux_kernel >= 6.14.2, < 6.15.4","linux_kernel = 6.16","debian_linux = 11.0"],"patched":["linux_kernel 6.15.4"],"published":"2025-07-10","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:17:53.807","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-38322","references":[{"url":"https://git.kernel.org/stable/c/702ea6028032d6c1fe96c2d4762a3575e3654819","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/79e2dd573116d3338507c311460da9669095c94d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a85cc69acdcb05f8cd226b8ea0778b8e2e887e6f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b0823d5fbacb1c551d793cbfe7af24e0d1fa45ed","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e97c45c770f5e56c784a46c2a96ab968d26b97d9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-032379.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00197,"epssPercentile":0.09358,"ingestedAt":"2026-09-08T15:33:26.997Z","slug":"CVE-2025-38322","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel: Fix crash in icl_update_topdown_event()\n\nThe perf_fuzzer found a hard-lockup crash on a RaptorLake machine:\n\n  Oops: general protection fault, maybe for address 0xffff89aeceab400: 0000\n  CPU: 23 UID: 0 PID: 0 Comm: swapper/23\n  Tainted: [W]=WARN\n  Hardware name: Dell Inc. Precision 9660/0VJ762\n  RIP: 0010:native_read_pmc+0x7/0x40\n  Code: cc e8 8d a9 01 00 48 89 03 5b cd cc cc cc cc 0f 1f ...\n  RSP: 000:fffb03100273de8 EFLAGS: 00010046\n  ....\n  Call Trace:\n    <TASK>\n    icl_update_topdown_event+0x165/0x190\n    ? ktime_get+0x38/0xd0\n    intel_pmu_read_event+0xf9/0x210\n    __perf_event_read+0xf9/0x210\n\nCPUs 16-23 are E-core CPUs that don't support the perf metrics feature.\nThe icl_update_topdown_event() should not be invoked on these CPUs.\n\nIt's a regression of commit:\n\n  f9bdf1f95339 (\"perf/x86/intel: Avoid disable PMU if !cpuc->enabled in sample read\")\n\nThe bug introduced by that commit is that the is_topdown_event() function\nis mistakenly used to replace the is_topdown_count() call to check if the\ntopdown functions for the perf metrics feature should be invoked.\n\nFix it.\n\n## Affected\n\n- `linux_kernel >= 6.1.134, < 6.1.149`\n- `linux_kernel >= 6.6.87, < 6.6.101`\n- `linux_kernel >= 6.12.23, < 6.12.49`\n- `linux_kernel >= 6.13.11, < 6.14`\n- `linux_kernel >= 6.14.2, < 6.15.4`\n- `linux_kernel = 6.16`\n- `debian_linux = 11.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.15.4`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":221523,"id":"CVE-2025-38322","ts":1792035251103,"field":"cvss","old":null,"new":"5.5"},{"seq":221522,"id":"CVE-2025-38322","ts":1792035251103,"field":"severity","old":"none","new":"medium"}]}