{"id":"CVE-2026-74617","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74617","summary":"dibs: initialise dibs->lock in dibs_dev_alloc()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndibs: initialise dibs->lock in dibs_dev_alloc()\n\ndibs->lock is initialised by dibs_dev_add(), but a dibs device can\nalready take interrupts before that call: ism_probe() runs\nism_dev_init(), and hence request_irq(), before it calls\ndibs_dev_add(). No client can have registered a dmb at that point, so\nno dmb interrupt can occur, but a GID event interrupt can, and\nism_handle_irq() takes dibs->lock unconditionally on entry, before it\ninspects anything else.\n\nInitialise the lock in dibs_dev_alloc() instead, so that it is valid as\nsoon as a driver can publish the device to its interrupt handler.","published":"2026-08-22T15:32:02.049Z","modified":"2026-08-24T11:47:03.769265090Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.18.45"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2926031acba100d0c18fcfaa7a2ed29609318848"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c27e360545373b7aee9862a5beef3b9fb3df0c25"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fe79571f40434b257d68cbfb7b3ae93a794d8a11"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74617.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74617"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-24T11:47:03.769265090Z"}}