{"api_version":"1","generated_at":"2026-04-23T12:00:08+00:00","cve":"CVE-2026-31480","urls":{"html":"https://cve.report/CVE-2026-31480","api":"https://cve.report/api/cve/CVE-2026-31480.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-31480","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-31480"},"summary":{"title":"tracing: Fix potential deadlock in cpu hotplug with osnoise","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix potential deadlock in cpu hotplug with osnoise\n\nThe following sequence may leads deadlock in cpu hotplug:\n\n    task1        task2        task3\n    -----        -----        -----\n\n mutex_lock(&interface_lock)\n\n            [CPU GOING OFFLINE]\n\n            cpus_write_lock();\n            osnoise_cpu_die();\n              kthread_stop(task3);\n                wait_for_completion();\n\n                      osnoise_sleep();\n                        mutex_lock(&interface_lock);\n\n cpus_read_lock();\n\n [DEAD LOCK]\n\nFix by swap the order of cpus_read_lock() and mutex_lock(&interface_lock).","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-22 14:16:45","updated_at":"2026-04-22 14:16:45"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f","name":"https://git.kernel.org/stable/c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cf929c21eeed5bd39873fb14bfdfff963fa6f1da","name":"https://git.kernel.org/stable/c/cf929c21eeed5bd39873fb14bfdfff963fa6f1da","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1f9885732248d22f788e4992c739a98c88ab8a55","name":"https://git.kernel.org/stable/c/1f9885732248d22f788e4992c739a98c88ab8a55","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ef41a85a55022e27cdaebf22a6676910b66f65aa","name":"https://git.kernel.org/stable/c/ef41a85a55022e27cdaebf22a6676910b66f65aa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7aa095ce7d224308cb6979956f0de8607df93d4f","name":"https://git.kernel.org/stable/c/7aa095ce7d224308cb6979956f0de8607df93d4f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/03474a01c199de17a8e2d39b51df6beb9c76e831","name":"https://git.kernel.org/stable/c/03474a01c199de17a8e2d39b51df6beb9c76e831","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7","name":"https://git.kernel.org/stable/c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-31480","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31480","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bce29ac9ce0bb0b0b146b687ab978378c21e9078 cf929c21eeed5bd39873fb14bfdfff963fa6f1da git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bce29ac9ce0bb0b0b146b687ab978378c21e9078 7aa095ce7d224308cb6979956f0de8607df93d4f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bce29ac9ce0bb0b0b146b687ab978378c21e9078 ef41a85a55022e27cdaebf22a6676910b66f65aa git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bce29ac9ce0bb0b0b146b687ab978378c21e9078 03474a01c199de17a8e2d39b51df6beb9c76e831 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bce29ac9ce0bb0b0b146b687ab978378c21e9078 f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bce29ac9ce0bb0b0b146b687ab978378c21e9078 7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bce29ac9ce0bb0b0b146b687ab978378c21e9078 1f9885732248d22f788e4992c739a98c88ab8a55 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.203 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.168 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.131 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.80 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.21 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.11 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/trace/trace_osnoise.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"cf929c21eeed5bd39873fb14bfdfff963fa6f1da","status":"affected","version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","versionType":"git"},{"lessThan":"7aa095ce7d224308cb6979956f0de8607df93d4f","status":"affected","version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","versionType":"git"},{"lessThan":"ef41a85a55022e27cdaebf22a6676910b66f65aa","status":"affected","version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","versionType":"git"},{"lessThan":"03474a01c199de17a8e2d39b51df6beb9c76e831","status":"affected","version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","versionType":"git"},{"lessThan":"f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7","status":"affected","version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","versionType":"git"},{"lessThan":"7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f","status":"affected","version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","versionType":"git"},{"lessThan":"1f9885732248d22f788e4992c739a98c88ab8a55","status":"affected","version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/trace/trace_osnoise.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.131","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.203","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.168","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.131","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.80","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.21","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.11","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"5.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix potential deadlock in cpu hotplug with osnoise\n\nThe following sequence may leads deadlock in cpu hotplug:\n\n    task1        task2        task3\n    -----        -----        -----\n\n mutex_lock(&interface_lock)\n\n            [CPU GOING OFFLINE]\n\n            cpus_write_lock();\n            osnoise_cpu_die();\n              kthread_stop(task3);\n                wait_for_completion();\n\n                      osnoise_sleep();\n                        mutex_lock(&interface_lock);\n\n cpus_read_lock();\n\n [DEAD LOCK]\n\nFix by swap the order of cpus_read_lock() and mutex_lock(&interface_lock)."}],"providerMetadata":{"dateUpdated":"2026-04-22T13:54:07.566Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/cf929c21eeed5bd39873fb14bfdfff963fa6f1da"},{"url":"https://git.kernel.org/stable/c/7aa095ce7d224308cb6979956f0de8607df93d4f"},{"url":"https://git.kernel.org/stable/c/ef41a85a55022e27cdaebf22a6676910b66f65aa"},{"url":"https://git.kernel.org/stable/c/03474a01c199de17a8e2d39b51df6beb9c76e831"},{"url":"https://git.kernel.org/stable/c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7"},{"url":"https://git.kernel.org/stable/c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f"},{"url":"https://git.kernel.org/stable/c/1f9885732248d22f788e4992c739a98c88ab8a55"}],"title":"tracing: Fix potential deadlock in cpu hotplug with osnoise","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-31480","datePublished":"2026-04-22T13:54:07.566Z","dateReserved":"2026-03-09T15:48:24.100Z","dateUpdated":"2026-04-22T13:54:07.566Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-22 14:16:45","lastModifiedDate":"2026-04-22 14:16:45","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"31480","Ordinal":"1","Title":"tracing: Fix potential deadlock in cpu hotplug with osnoise","CVE":"CVE-2026-31480","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"31480","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix potential deadlock in cpu hotplug with osnoise\n\nThe following sequence may leads deadlock in cpu hotplug:\n\n    task1        task2        task3\n    -----        -----        -----\n\n mutex_lock(&interface_lock)\n\n            [CPU GOING OFFLINE]\n\n            cpus_write_lock();\n            osnoise_cpu_die();\n              kthread_stop(task3);\n                wait_for_completion();\n\n                      osnoise_sleep();\n                        mutex_lock(&interface_lock);\n\n cpus_read_lock();\n\n [DEAD LOCK]\n\nFix by swap the order of cpus_read_lock() and mutex_lock(&interface_lock).","Type":"Description","Title":"tracing: Fix potential deadlock in cpu hotplug with osnoise"}]}}}