{"id":"CVE-2026-74690","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74690","summary":"s390/ism: Fix UAF of sba and ieq during ism_dev_exit()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/ism: Fix UAF of sba and ieq during ism_dev_exit()\n\nA ism interrupt handler can be active in parallel with ism_dev_exit(),\naccessing freed data structures.\n\nNo new interrupts will be generated after unregister_ieq(). Drain ongoing\ninterrupt handlers by free_irq(), before freeing ism data structures.","published":"2026-08-22T15:32:54.650Z","modified":"2026-08-24T11:47:20.495286901Z","cvss":null,"epss":{"score":0.00166,"percentile":0.06018,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.18.45"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/774394d27930ec4cf4cb3eed8ab6a4d20cb2430a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b1896543ce59c4258625a35cf41e23a9a1f80ea2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fc3021284050ecb3bba8a7851340cedcb5037928"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74690.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74690"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-24T11:47:20.495286901Z"}}