{"id":"CVE-2026-74629","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/dibs: Correct freeing of dmb_clientid_arr\n\nA dibs device interrupt handler can be active after dibs_dev_del() and\nmay still access dmb_clientid_arr","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/dibs: Correct freeing of dmb_clientid_arr\n\nA dibs device interrupt handler can be active after dibs_dev_del() and\nmay still access dmb_clientid_arr. (UAF)\n\nIn case …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"Linux","product":"Linux","affected":["Linux >= cc21191b584c6f7836b0f10774f8278b7cbfba10 < ece6426b61241e9bfb41aa131f235168f55229b1","Linux >= cc21191b584c6f7836b0f10774f8278b7cbfba10 < 7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403","Linux >= cc21191b584c6f7836b0f10774f8278b7cbfba10 < 9e6869be49064915edb6c8776b27c376cfdb0df5","Linux 6.18"],"published":"2026-08-22","updated":"2026-10-16","sourceUpdated":"2026-10-16T20:17:47.947","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74629","references":[{"url":"https://git.kernel.org/stable/c/7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9e6869be49064915edb6c8776b27c376cfdb0df5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ece6426b61241e9bfb41aa131f235168f55229b1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74629.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-74629"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2521411"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74629"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74629"},{"url":"https://kernelcve.org/list/?q=CVE-2026-74629"},{"url":"https://lore.kernel.org/linux-cve-announce/2026082221-CVE-2026-74629-6db1@gregkh/T"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00375,"epssPercentile":0.31297,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T19:02:53.858815Z"},"scores":{"nvd":8.8,"vendor":5.3},"ingestedAt":"2026-10-14T13:30:58.520Z","slug":"CVE-2026-74629","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet/dibs: Correct freeing of dmb_clientid_arr\n\nA dibs device interrupt handler can be active after dibs_dev_del() and\nmay still access dmb_clientid_arr. (UAF)\n\nIn case of a failure in dibs_dev_add() being called by dibs_lo_dev_probe()\ndmb_clientid_arr is freed twice (double free).\n\nFree dmb_clientid_arr in dibs_dev_release() after last reference is gone.\nNote that allocating in dibs_dev_add() instead of dibs_dev_alloc() is ok\nfor now, because no dmbs can be registered before dibs_dev_add().\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-26 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74629.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}