{"api_version":"1","generated_at":"2026-10-01T13:40:28+00:00","cve":"CVE-2026-97499","urls":{"html":"https://cve.report/CVE-2026-97499","api":"https://cve.report/api/cve/CVE-2026-97499.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-97499","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-97499"},"summary":{"title":"coresight: perf: Retrieve path and source from event data","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: perf: Retrieve path and source from event data\n\nETM perf callbacks currently use the per-CPU csdev_src pointer, which\ncan race with updates during device registration and unregistration.\n\nThe AUX setup already builds and stores the path in the event data.\nUse this path to retrieve the source instead of csdev_src to avoid\nthe race.\n\nExport coresight_get_source() and add etm_event_get_ctxt_path() to\nretrieve the context's path and its source with READ_ONCE() /\nWRITE_ONCE() accessors. Give the comments to explain why this\napproach is safe when pause or resume callbacks preempt the disable\ncallback (e.g. via NMI).","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-24 17:17:27","updated_at":"2026-09-28 06:16:35"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/0f4cb08f30011b7625a4fba668fa5c36da5e6637","name":"https://git.kernel.org/stable/c/0f4cb08f30011b7625a4fba668fa5c36da5e6637","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f37bc31447c0ddafedb25e3c4a4f4e2284034247","name":"https://git.kernel.org/stable/c/f37bc31447c0ddafedb25e3c4a4f4e2284034247","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97499","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97499","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0bcbf2e30ff2271b54f54c8697a185f7d86ec6e4 0f4cb08f30011b7625a4fba668fa5c36da5e6637 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0bcbf2e30ff2271b54f54c8697a185f7d86ec6e4 f37bc31447c0ddafedb25e3c4a4f4e2284034247 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.6","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"97499","cve":"CVE-2026-97499","epss":"0.001550000","percentile":"0.040140000","score_date":"2026-09-29","updated_at":"2026-09-30 00:11:23"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hwtracing/coresight/coresight-core.c","drivers/hwtracing/coresight/coresight-etm-perf.c","drivers/hwtracing/coresight/coresight-priv.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0f4cb08f30011b7625a4fba668fa5c36da5e6637","status":"affected","version":"0bcbf2e30ff2271b54f54c8697a185f7d86ec6e4","versionType":"git"},{"lessThan":"f37bc31447c0ddafedb25e3c4a4f4e2284034247","status":"affected","version":"0bcbf2e30ff2271b54f54c8697a185f7d86ec6e4","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hwtracing/coresight/coresight-core.c","drivers/hwtracing/coresight/coresight-etm-perf.c","drivers/hwtracing/coresight/coresight-priv.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.6"},{"lessThan":"4.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"4.6","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: perf: Retrieve path and source from event data\n\nETM perf callbacks currently use the per-CPU csdev_src pointer, which\ncan race with updates during device registration and unregistration.\n\nThe AUX setup already builds and stores the path in the event data.\nUse this path to retrieve the source instead of csdev_src to avoid\nthe race.\n\nExport coresight_get_source() and add etm_event_get_ctxt_path() to\nretrieve the context's path and its source with READ_ONCE() /\nWRITE_ONCE() accessors. Give the comments to explain why this\napproach is safe when pause or resume callbacks preempt the disable\ncallback (e.g. via NMI)."}],"providerMetadata":{"dateUpdated":"2026-09-28T05:30:32.658Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0f4cb08f30011b7625a4fba668fa5c36da5e6637"},{"url":"https://git.kernel.org/stable/c/f37bc31447c0ddafedb25e3c4a4f4e2284034247"}],"title":"coresight: perf: Retrieve path and source from event data","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-97499","datePublished":"2026-09-24T16:04:46.252Z","dateReserved":"2026-09-24T16:01:01.151Z","dateUpdated":"2026-09-28T05:30:32.658Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-24 17:17:27","lastModifiedDate":"2026-09-28 06:16:35","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"97499","Ordinal":"1","Title":"coresight: perf: Retrieve path and source from event data","CVE":"CVE-2026-97499","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"97499","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: perf: Retrieve path and source from event data\n\nETM perf callbacks currently use the per-CPU csdev_src pointer, which\ncan race with updates during device registration and unregistration.\n\nThe AUX setup already builds and stores the path in the event data.\nUse this path to retrieve the source instead of csdev_src to avoid\nthe race.\n\nExport coresight_get_source() and add etm_event_get_ctxt_path() to\nretrieve the context's path and its source with READ_ONCE() /\nWRITE_ONCE() accessors. Give the comments to explain why this\napproach is safe when pause or resume callbacks preempt the disable\ncallback (e.g. via NMI).","Type":"Description","Title":"coresight: perf: Retrieve path and source from event data"}]}}}