{"id":"AZL-72713","summary":"CVE-2025-38071 affecting package kernel 5.15.200.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm: Check return value from memblock_phys_alloc_range()\n\nAt least with CONFIG_PHYSICAL_START=0x100000, if there is \u003c 4 MiB of\ncontiguous free memory available at this point, the kernel will crash\nand burn because memblock_phys_alloc_range() returns 0 on failure,\nwhich leads memblock_phys_free() to throw the first 4 MiB of physical\nmemory to the wolves.\n\nAt a minimum it should fail gracefully with a meaningful diagnostic,\nbut in fact everything seems to work fine without the weird reserve\nallocation.","modified":"2026-04-01T05:22:11.713290Z","published":"2025-06-18T10:15:40Z","upstream":["CVE-2025-38071"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38071"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.15.200.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-72713.json"}}],"schema_version":"1.7.5"}