{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31480","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-03-09T15:48:24.100Z","datePublished":"2026-04-22T13:54:07.566Z","dateUpdated":"2026-05-11T22:09:32.978Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:09:32.978Z"},"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)."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/trace_osnoise.c"],"versions":[{"version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","lessThan":"cf929c21eeed5bd39873fb14bfdfff963fa6f1da","status":"affected","versionType":"git"},{"version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","lessThan":"7aa095ce7d224308cb6979956f0de8607df93d4f","status":"affected","versionType":"git"},{"version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","lessThan":"ef41a85a55022e27cdaebf22a6676910b66f65aa","status":"affected","versionType":"git"},{"version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","lessThan":"03474a01c199de17a8e2d39b51df6beb9c76e831","status":"affected","versionType":"git"},{"version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","lessThan":"f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7","status":"affected","versionType":"git"},{"version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","lessThan":"7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f","status":"affected","versionType":"git"},{"version":"bce29ac9ce0bb0b0b146b687ab978378c21e9078","lessThan":"1f9885732248d22f788e4992c739a98c88ab8a55","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/trace_osnoise.c"],"versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","status":"unaffected","versionType":"semver"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.168","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.131","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.80","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.21","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.11","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.1.168"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.6.131"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.12.80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.18.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.19.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"7.0"}]}]}],"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"}}}}