{"id":"AZL-86112","summary":"CVE-2026-43474 affecting package kernel for versions less than 6.6.138.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs: init flags_valid before calling vfs_fileattr_get\n\nsyzbot reported a uninit-value bug in [1].\n\nSimilar to the \"*get\" context where the kernel's internal file_kattr\nstructure is initialized before calling vfs_fileattr_get(), we should\nuse the same mechanism when using fa.\n\n[1]\nBUG: KMSAN: uninit-value in fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517\n fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517\n vfs_fileattr_get fs/file_attr.c:94 [inline]\n __do_sys_file_getattr fs/file_attr.c:416 [inline]\n\nLocal variable fa.i created at:\n __do_sys_file_getattr fs/file_attr.c:380 [inline]\n __se_sys_file_getattr+0x8c/0xbd0 fs/file_attr.c:372","modified":"2026-08-28T17:47:58.492923725Z","published":"2026-05-08T15:17:00Z","upstream":["CVE-2026-43474"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43474"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.138.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-86112.json"}}],"schema_version":"1.9.0"}