{"id":"CVE-2026-93279","state":"PUBLISHED","title":"staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown\n\nThe TX cleanup tasklet can be scheduled by the watchdog IRQ handler\nto execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in\nthe queue which might run after the cvm_oct_remove() frees net_device\nstructures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it\niterates cvm_oct_device[] which is an array of netdevice pointers.\nAdd tasklet_kill() after free_irq() to ensure the tasklet is no longer\nscheduled or running before teardown proceeds.","publishedAt":"2026-09-24T15:52:21.275Z","updatedAt":"2026-10-19T09:08:33.590Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"d15226338dfaa84ffff142d32723cdf74d0c47c4","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"b6365e4186322858a82c8713b1d0bd209c8e765a","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"03d12490afd1198310ad0aba42462329832eb739","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"2c0c9956596e48654bb4855e2a0742748a0826a7","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"41a79bd9e5a74f8f483b3b206d10567912874fb4","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"b9af44b0d20b2247c4eb0ea5cfca907d643eea50","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/octeon/ethernet-tx.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":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","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-tx.c"]}],"references":["https://git.kernel.org/stable/c/32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486","https://git.kernel.org/stable/c/d15226338dfaa84ffff142d32723cdf74d0c47c4","https://git.kernel.org/stable/c/a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19","https://git.kernel.org/stable/c/b6365e4186322858a82c8713b1d0bd209c8e765a","https://git.kernel.org/stable/c/03d12490afd1198310ad0aba42462329832eb739","https://git.kernel.org/stable/c/2c0c9956596e48654bb4855e2a0742748a0826a7","https://git.kernel.org/stable/c/41a79bd9e5a74f8f483b3b206d10567912874fb4","https://git.kernel.org/stable/c/b9af44b0d20b2247c4eb0ea5cfca907d643eea50"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93279.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93279","state":"PUBLISHED","datePublished":"2026-09-24T15:52:21.275Z","dateUpdated":"2026-10-19T09:08:33.590Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.098Z"},"containers":{"cna":{"title":"staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown\n\nThe TX cleanup tasklet can be scheduled by the watchdog IRQ handler\nto execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in\nthe queue which might run after the cvm_oct_remove() frees net_device\nstructures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it\niterates cvm_oct_device[] which is an array of netdevice pointers.\nAdd tasklet_kill() after free_irq() to ensure the tasklet is no longer\nscheduled or running before teardown proceeds."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"d15226338dfaa84ffff142d32723cdf74d0c47c4","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"b6365e4186322858a82c8713b1d0bd209c8e765a","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"03d12490afd1198310ad0aba42462329832eb739","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"2c0c9956596e48654bb4855e2a0742748a0826a7","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"41a79bd9e5a74f8f483b3b206d10567912874fb4","versionType":"git"},{"version":"4898c560103fb8075c10a8e9d70e0ca26873075e","status":"affected","lessThan":"b9af44b0d20b2247c4eb0ea5cfca907d643eea50","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/octeon/ethernet-tx.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":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","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-tx.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486"},{"url":"https://git.kernel.org/stable/c/d15226338dfaa84ffff142d32723cdf74d0c47c4"},{"url":"https://git.kernel.org/stable/c/a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19"},{"url":"https://git.kernel.org/stable/c/b6365e4186322858a82c8713b1d0bd209c8e765a"},{"url":"https://git.kernel.org/stable/c/03d12490afd1198310ad0aba42462329832eb739"},{"url":"https://git.kernel.org/stable/c/2c0c9956596e48654bb4855e2a0742748a0826a7"},{"url":"https://git.kernel.org/stable/c/41a79bd9e5a74f8f483b3b206d10567912874fb4"},{"url":"https://git.kernel.org/stable/c/b9af44b0d20b2247c4eb0ea5cfca907d643eea50"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:08:33.590Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.34","versionEndExcluding":"5.10.270"},{"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"}}}}}