{"id":"CVE-2026-93278","state":"PUBLISHED","title":"staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: octeon: add missing napi_disable in cvm_oct_rx_shutdown\n\ncvm_oct_rx_shutdown calls free_irq and netif_napi_del without\ndisabling the napi instance first. As the free_irq only waits\nfor completion of hard interrupt handlers, the napi poll\nfunction could still be active. If cvm_oct_remove proceeds to\nfree the plat structure (which holds the NAPI instances), the\nactive poll function will access freed memory, resulting in a\nuse-after-free crash.","publishedAt":"2026-09-24T15:52:20.416Z","updatedAt":"2026-10-19T09:08:32.599Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"158389d7af04bbf0664d91c2ce31fcc9eeace1eb","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"c124049c3a7006fd6caf629139a5722610bbffb4","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"98f9036b2254c928cb44da0c77dba38f66f7d8f1","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"b38fbd68cc36b4f478a1e3cfc169b8616ae1337d","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"89f9f433271fad9351de6a3c713b45b2cfb23e4a","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"b2243ffaac14cc3639b5b32a371aac37f96ee554","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"c0a9a8586a63fda49e61a6b83360feac2a60d898","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/octeon/ethernet-rx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.34","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.34","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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/staging/octeon/ethernet-rx.c"]}],"references":["https://git.kernel.org/stable/c/158389d7af04bbf0664d91c2ce31fcc9eeace1eb","https://git.kernel.org/stable/c/c124049c3a7006fd6caf629139a5722610bbffb4","https://git.kernel.org/stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1","https://git.kernel.org/stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d","https://git.kernel.org/stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a","https://git.kernel.org/stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554","https://git.kernel.org/stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93278.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93278","state":"PUBLISHED","datePublished":"2026-09-24T15:52:20.416Z","dateUpdated":"2026-10-19T09:08:32.599Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.098Z"},"containers":{"cna":{"title":"staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: octeon: add missing napi_disable in cvm_oct_rx_shutdown\n\ncvm_oct_rx_shutdown calls free_irq and netif_napi_del without\ndisabling the napi instance first. As the free_irq only waits\nfor completion of hard interrupt handlers, the napi poll\nfunction could still be active. If cvm_oct_remove proceeds to\nfree the plat structure (which holds the NAPI instances), the\nactive poll function will access freed memory, resulting in a\nuse-after-free crash."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"158389d7af04bbf0664d91c2ce31fcc9eeace1eb","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"c124049c3a7006fd6caf629139a5722610bbffb4","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"98f9036b2254c928cb44da0c77dba38f66f7d8f1","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"b38fbd68cc36b4f478a1e3cfc169b8616ae1337d","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"89f9f433271fad9351de6a3c713b45b2cfb23e4a","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"b2243ffaac14cc3639b5b32a371aac37f96ee554","versionType":"git"},{"version":"3368c784bcf77124aaf39372e627016c36bd4472","status":"affected","lessThan":"c0a9a8586a63fda49e61a6b83360feac2a60d898","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/octeon/ethernet-rx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.34","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.34","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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/staging/octeon/ethernet-rx.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/158389d7af04bbf0664d91c2ce31fcc9eeace1eb"},{"url":"https://git.kernel.org/stable/c/c124049c3a7006fd6caf629139a5722610bbffb4"},{"url":"https://git.kernel.org/stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1"},{"url":"https://git.kernel.org/stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d"},{"url":"https://git.kernel.org/stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a"},{"url":"https://git.kernel.org/stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554"},{"url":"https://git.kernel.org/stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:08:32.599Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.34","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.34","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.34","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.34","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.34","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.34","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.34","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}