{"id":"CVE-2026-80720","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80720","summary":"iomap: add a separate bio_set for iomap_split_ioend","details":"In the Linux kernel, the following vulnerability has been resolved:\n\niomap: add a separate bio_set for iomap_split_ioend\n\niomap_split_ioend can split bios that already come from\niomap_ioend_bioset and thus deadlock when the bioset is exhausted.\n\nAdd a separate bio_set to avoid this deadlock.\n\nChristian Brauner <brauner@kernel.org> says:\nMark iomap_ioend_split_bioset static as it is only used in ioend.c,\nfixing the sparse warning reported by the kernel test robot.","published":"2026-08-28T06:53:16.683Z","modified":"2026-08-30T03:48:21.430422650Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.18.44"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4a869be56e9f6ce7462abcf324ebdefc5de051be"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c679ce3be6cb63763d68ab9b5d9d73ddc0a40762"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfc686a1174aa904dcad9b9a7c5e46b484d27e4e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80720.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80720"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-30T03:48:21.430422650Z"}}