{"id":"AZL-55369","summary":"CVE-2024-56774 affecting package kernel for versions less than 5.15.176.3-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: add a sanity check for btrfs root in btrfs_search_slot()\n\nSyzbot reports a null-ptr-deref in btrfs_search_slot().\n\nThe reproducer is using rescue=ibadroots, and the extent tree root is\ncorrupted thus the extent tree is NULL.\n\nWhen scrub tries to search the extent tree to gather the needed extent\ninfo, btrfs_search_slot() doesn't check if the target root is NULL or\nnot, resulting the null-ptr-deref.\n\nAdd sanity check for btrfs root before using it in btrfs_search_slot().","modified":"2026-04-01T05:18:36.023499Z","published":"2025-01-08T18:15:18Z","upstream":["CVE-2024-56774"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56774"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.176.3-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-55369.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}