{"id":"CVE-2026-74617","summary":"dibs: initialise dibs-\u003elock in dibs_dev_alloc()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndibs: initialise dibs-\u003elock in dibs_dev_alloc()\n\ndibs-\u003elock 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-\u003elock 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.","modified":"2026-08-27T11:30:54.554813709Z","published":"2026-08-22T15:32:02.049Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74617.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"cc21191b584c6f7836b0f10774f8278b7cbfba10"},{"fixed":"fe79571f40434b257d68cbfb7b3ae93a794d8a11"},{"fixed":"2926031acba100d0c18fcfaa7a2ed29609318848"},{"fixed":"c27e360545373b7aee9862a5beef3b9fb3df0c25"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74617.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.18.0"},{"fixed":"6.18.45"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74617.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}