{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","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","source":"CNA: Linux","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"}]}],"cveId":"CVE-2026-31480","cwes":[],"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).","epss":{"date":"2026-11-05","percentile":0.00605,"score":0.00095},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793915100955,"publishedAt":1776866047566,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/cf929c21eeed5bd39873fb14bfdfff963fa6f1da"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/7aa095ce7d224308cb6979956f0de8607df93d4f"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/ef41a85a55022e27cdaebf22a6676910b66f65aa"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/03474a01c199de17a8e2d39b51df6beb9c76e831"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/1f9885732248d22f788e4992c739a98c88ab8a55"}],"remediation":[],"revision":"98ddd6555c34d918f2234b98768c1a705107d1dc6cd22aa7cf69f90ecbf74cea","sources":[{"modifiedAt":1793915100955,"name":"CNA: Linux","retrievedAt":1793917056942,"url":"https://www.cve.org/CVERecord?id=CVE-2026-31480"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793917074442,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-31480"}],"ssvc":{"assessedAt":1793914474600,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"tracing: Fix potential deadlock in cpu hotplug with osnoise","updatedAt":1793917074442}