{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23013","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.940Z","datePublished":"2026-01-25T14:36:26.208Z","dateUpdated":"2026-08-05T12:20:08.819Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T12:20:08.819Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback\n\noctep_vf_request_irqs() requests MSI-X queue IRQs with dev_id set to\nioq_vector. If request_irq() fails part-way, the rollback loop calls\nfree_irq() with dev_id set to 'oct', which does not match the original\ndev_id and may leave the irqaction registered.\n\nThis can keep IRQ handlers alive while ioq_vector is later freed during\nunwind/teardown, leading to a use-after-free or crash when an interrupt\nfires.\n\nFix the error path to free IRQs with the same ioq_vector dev_id used\nduring request_irq()."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The vulnerability is in a PCI device driver (Marvell Octeon EP VF) triggered via ndo_open when bringing up the network interface locally. It is not reachable remotely via network packets.\nAC:H - Exploitation requires request_irq() to fail partway through the loop (some IRQs allocated, then one fails), which depends on system resource conditions the attacker cannot reliably control.\nPR:L - Bringing up a VF network interface requires CAP_NET_ADMIN. In SR-IOV/container environments, VFs are commonly assigned to containers where users have CAP_NET_ADMIN via network namespaces, making this reachable without real root.\nUI:N - No user interaction is required; the attacker directly brings up the network interface.\nS:U - The vulnerability impacts the kernel within the same security authority; no security boundary (VM, sandbox) is crossed.\nC:H - The use-after-free in the IRQ handler allows reading freed ioq_vector memory, which could be reallocated with attacker-controlled content, enabling arbitrary kernel memory disclosure.\nI:H - The use-after-free allows the IRQ handler to operate on attacker-controlled data via heap spraying the freed ioq_vector, potentially enabling control flow hijacking and code execution.\nA:H - The use-after-free will crash the kernel when the interrupt handler dereferences freed/corrupted memory, causing an oops or panic."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c"],"versions":[{"version":"1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1","lessThan":"aa05a8371ae4a452df623f7202c72409d3c50e40","status":"affected","versionType":"git"},{"version":"1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1","lessThan":"aa4c066229b05fc3d3c5f42693d25b1828533b6e","status":"affected","versionType":"git"},{"version":"1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1","lessThan":"f93fc5d12d69012788f82151bee55fce937e1432","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/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c"],"versions":[{"version":"6.9","status":"affected"},{"version":"0","lessThan":"6.9","status":"unaffected","versionType":"semver"},{"version":"6.12.67","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.7","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","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":"6.9","versionEndExcluding":"6.12.67"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.18.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/aa05a8371ae4a452df623f7202c72409d3c50e40"},{"url":"https://git.kernel.org/stable/c/aa4c066229b05fc3d3c5f42693d25b1828533b6e"},{"url":"https://git.kernel.org/stable/c/f93fc5d12d69012788f82151bee55fce937e1432"}],"title":"net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback","x_generator":{"engine":"bippy-1.2.0"}}}}