{"id":"CVE-2026-97600","state":"PUBLISHED","title":"ieee802154: cc2520: fix FIFOP work use-after-free","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: cc2520: fix FIFOP work use-after-free\n\nThe FIFOP interrupt handler queues cc2520_fifop_irqwork.  On removal,\ncc2520_remove() only flushes the work.  The devm-managed FIFOP IRQ\nremains active until after ->remove() returns and can queue the work\nagain after that flush, allowing it to run after the private data is\nreleased.\n\nDisable the work with disable_work_sync() instead of flushing it, so\nthe handler can no longer queue it once removal begins.  Destroy the\nbuffer mutex last, since the worker and the stop callback invoked\nthrough ieee802154_unregister_hw() both take it.\n\nFound by an in-house static analysis tool.","publishedAt":"2026-09-25T10:22:14.197Z","updatedAt":"2026-10-21T12:53:24.716Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"4a1ba62a486a4c43af91d01661a95e82dc4aaefa","versionType":"git"},{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"56a9919d8494fb118eebf167bef0622528fbf2e7","versionType":"git"},{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"c68fd52c73b676aee67020011e98fea125a978f4","versionType":"git"},{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"890a80d516a1447db5c21bf92841a82914ea897d","versionType":"git"},{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"ff5891b266a7fc6a062710836be84f1cc19338b5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ieee802154/cc2520.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ieee802154/cc2520.c"]}],"references":["https://git.kernel.org/stable/c/4a1ba62a486a4c43af91d01661a95e82dc4aaefa","https://git.kernel.org/stable/c/56a9919d8494fb118eebf167bef0622528fbf2e7","https://git.kernel.org/stable/c/c68fd52c73b676aee67020011e98fea125a978f4","https://git.kernel.org/stable/c/890a80d516a1447db5c21bf92841a82914ea897d","https://git.kernel.org/stable/c/ff5891b266a7fc6a062710836be84f1cc19338b5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97600.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97600","state":"PUBLISHED","datePublished":"2026-09-25T10:22:14.197Z","dateUpdated":"2026-10-21T12:53:24.716Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-24T16:01:01.158Z"},"containers":{"cna":{"title":"ieee802154: cc2520: fix FIFOP work use-after-free","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: cc2520: fix FIFOP work use-after-free\n\nThe FIFOP interrupt handler queues cc2520_fifop_irqwork.  On removal,\ncc2520_remove() only flushes the work.  The devm-managed FIFOP IRQ\nremains active until after ->remove() returns and can queue the work\nagain after that flush, allowing it to run after the private data is\nreleased.\n\nDisable the work with disable_work_sync() instead of flushing it, so\nthe handler can no longer queue it once removal begins.  Destroy the\nbuffer mutex last, since the worker and the stop callback invoked\nthrough ieee802154_unregister_hw() both take it.\n\nFound by an in-house static analysis tool."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"4a1ba62a486a4c43af91d01661a95e82dc4aaefa","versionType":"git"},{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"56a9919d8494fb118eebf167bef0622528fbf2e7","versionType":"git"},{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"c68fd52c73b676aee67020011e98fea125a978f4","versionType":"git"},{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"890a80d516a1447db5c21bf92841a82914ea897d","versionType":"git"},{"version":"0da6bc8cc3417a5e452efb886ff2c61e72b743d6","status":"affected","lessThan":"ff5891b266a7fc6a062710836be84f1cc19338b5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ieee802154/cc2520.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ieee802154/cc2520.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/4a1ba62a486a4c43af91d01661a95e82dc4aaefa"},{"url":"https://git.kernel.org/stable/c/56a9919d8494fb118eebf167bef0622528fbf2e7"},{"url":"https://git.kernel.org/stable/c/c68fd52c73b676aee67020011e98fea125a978f4"},{"url":"https://git.kernel.org/stable/c/890a80d516a1447db5c21bf92841a82914ea897d"},{"url":"https://git.kernel.org/stable/c/ff5891b266a7fc6a062710836be84f1cc19338b5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:53:24.716Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}