{"id":"DEBIAN-CVE-2024-26786","details":"In the Linux kernel, the following vulnerability has been resolved:  iommufd: Fix iopt_access_list_id overwrite bug  Syzkaller reported the following WARN_ON:   WARNING: CPU: 1 PID: 4738 at drivers/iommu/iommufd/io_pagetable.c:1360    Call Trace:    iommufd_access_change_ioas+0x2fe/0x4e0    iommufd_access_destroy_object+0x50/0xb0    iommufd_object_remove+0x2a3/0x490    iommufd_object_destroy_user    iommufd_access_destroy+0x71/0xb0    iommufd_test_staccess_release+0x89/0xd0    __fput+0x272/0xb50    __fput_sync+0x4b/0x60    __do_sys_close    __se_sys_close    __x64_sys_close+0x8b/0x110    do_syscall_x64  The mismatch between the access pointer in the list and the passed-in pointer is resulting from an overwrite of access-\u003eiopt_access_list_id, in iopt_add_access(). Called from iommufd_access_change_ioas() when xa_alloc() succeeds but iopt_calculate_iova_alignment() fails.  Add a new_id in iopt_add_access() and only update iopt_access_list_id when returning successfully.","modified":"2026-09-15T09:03:05.506739046Z","published":"2024-04-04T09:15:08.247Z","upstream":["CVE-2024-26786"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-26786"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.7.9-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-26786.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.7.9-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-26786.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}