CVE-2026-93279

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93279", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.098Z", "datePublished": "2026-09-24T15:52:21.275Z", "dateUpdated": "2026-10-19T09:08:33.590Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:08:33.590Z"}, "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": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/staging/octeon/ethernet-tx.c"], "versions": [{"version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "lessThan": "32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486", "status": "affected", "versionType": "git"}, {"version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "lessThan": "d15226338dfaa84ffff142d32723cdf74d0c47c4", "status": "affected", "versionType": "git"}, {"version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "lessThan": "a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19", "status": "affected", "versionType": "git"}, {"version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "lessThan": "b6365e4186322858a82c8713b1d0bd209c8e765a", "status": "affected", "versionType": "git"}, {"version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "lessThan": "03d12490afd1198310ad0aba42462329832eb739", "status": "affected", "versionType": "git"}, {"version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "lessThan": "2c0c9956596e48654bb4855e2a0742748a0826a7", "status": "affected", "versionType": "git"}, {"version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "lessThan": "41a79bd9e5a74f8f483b3b206d10567912874fb4", "status": "affected", "versionType": "git"}, {"version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "lessThan": "b9af44b0d20b2247c4eb0ea5cfca907d643eea50", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/staging/octeon/ethernet-tx.c"], "versions": [{"version": "2.6.34", "status": "affected"}, {"version": "0", "lessThan": "2.6.34", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "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"}]}]}], "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"}], "title": "staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/staging/octeon/ethernet-tx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486", "status": "affected", "version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "versionType": "git"}, {"lessThan": "d15226338dfaa84ffff142d32723cdf74d0c47c4", "status": "affected", "version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "versionType": "git"}, {"lessThan": "a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19", "status": "affected", "version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "versionType": "git"}, {"lessThan": "b6365e4186322858a82c8713b1d0bd209c8e765a", "status": "affected", "version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "versionType": "git"}, {"lessThan": "03d12490afd1198310ad0aba42462329832eb739", "status": "affected", "version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "versionType": "git"}, {"lessThan": "2c0c9956596e48654bb4855e2a0742748a0826a7", "status": "affected", "version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "versionType": "git"}, {"lessThan": "41a79bd9e5a74f8f483b3b206d10567912874fb4", "status": "affected", "version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "versionType": "git"}, {"lessThan": "b9af44b0d20b2247c4eb0ea5cfca907d643eea50", "status": "affected", "version": "4898c560103fb8075c10a8e9d70e0ca26873075e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/staging/octeon/ethernet-tx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.34"}, {"lessThan": "2.6.34", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.270", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.221", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-93279", "lastModified": "2026-10-19T10:17:19.447", "metrics": {}, "published": "2026-09-24T16:17:25.147", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/03d12490afd1198310ad0aba42462329832eb739"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2c0c9956596e48654bb4855e2a0742748a0826a7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/41a79bd9e5a74f8f483b3b206d10567912874fb4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b6365e4186322858a82c8713b1d0bd209c8e765a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b9af44b0d20b2247c4eb0ea5cfca907d643eea50"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d15226338dfaa84ffff142d32723cdf74d0c47c4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown", "id": "2540364", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2540364"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nstaging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown\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.", "A flaw was found in the Linux kernel's Octeon network driver. During network device shutdown or driver removal, a pending cleanup task may execute after associated network device structures have already been freed from memory. A local user could exploit this race condition during device teardown to cause a use-after-free condition, leading to a system crash and a Denial of Service (DoS)."], "name": "CVE-2026-93279", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-93279\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-93279\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93279.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4898c560103fb8075c10a8e9d70e0ca26873075e,32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4898c560103fb8075c10a8e9d70e0ca26873075e,d15226338dfaa84ffff142d32723cdf74d0c47c4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4898c560103fb8075c10a8e9d70e0ca26873075e,a77efd85e0d48c877f66d2bc3ab89cc1b8dac19)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4898c560103fb8075c10a8e9d70e0ca26873075e,b6365e4186322858a82c8713b1d0bd209c8e765a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4898c560103fb8075c10a8e9d70e0ca26873075e,03d12490afd1198310ad0aba42462329832eb739)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4898c560103fb8075c10a8e9d70e0ca26873075e,2c0c9956596e48654bb4855e2a0742748a0826a7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4898c560103fb8075c10a8e9d70e0ca26873075e,41a79bd9e5a74f8f483b3b206d10567912874fb4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4898c560103fb8075c10a8e9d70e0ca26873075e,b9af44b0d20b2247c4eb0ea5cfca907d643eea50)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.34"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.34)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.270,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.221,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.188,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-25T05:00:09.767834+00:00", "updated": "2026-10-01T17:45:09.989357+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}