{"id":"AZL-42838","summary":"CVE-2024-39277 affecting package kernel for versions less than 6.6.35.1-4","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndma-mapping: benchmark: handle NUMA_NO_NODE correctly\n\ncpumask_of_node() can be called for NUMA_NO_NODE inside do_map_benchmark()\nresulting in the following sanitizer report:\n\nUBSAN: array-index-out-of-bounds in ./arch/x86/include/asm/topology.h:72:28\nindex -1 is out of range for type 'cpumask [64][1]'\nCPU: 1 PID: 990 Comm: dma_map_benchma Not tainted 6.9.0-rc6 #29\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996)\nCall Trace:\n \u003cTASK\u003e\ndump_stack_lvl (lib/dump_stack.c:117)\nubsan_epilogue (lib/ubsan.c:232)\n__ubsan_handle_out_of_bounds (lib/ubsan.c:429)\ncpumask_of_node (arch/x86/include/asm/topology.h:72) [inline]\ndo_map_benchmark (kernel/dma/map_benchmark.c:104)\nmap_benchmark_ioctl (kernel/dma/map_benchmark.c:246)\nfull_proxy_unlocked_ioctl (fs/debugfs/file.c:333)\n__x64_sys_ioctl (fs/ioctl.c:890)\ndo_syscall_64 (arch/x86/entry/common.c:83)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)\n\nUse cpumask_of_node() in place when binding a kernel thread to a cpuset\nof a particular node.\n\nNote that the provided node id is checked inside map_benchmark_ioctl().\nIt's just a NUMA_NO_NODE case which is not handled properly later.\n\nFound by Linux Verification Center (linuxtesting.org).","modified":"2026-04-01T05:14:51.836034Z","published":"2024-06-21T12:15:11Z","upstream":["CVE-2024-39277"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-39277"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.35.1-4"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-42838.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:H/I:H/A:H"}]}