{"id":"CVE-2024-42075","summary":"bpf: Fix remap of arena.","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix remap of arena.\n\nThe bpf arena logic didn't account for mremap operation. Add a refcnt for\nmultiple mmap events to prevent use-after-free in arena_vm_close.","modified":"2026-04-02T12:17:44.474078Z","published":"2024-07-29T15:52:38.154Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42075.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/87496a1b01e8e2e399428c0db25e106f7961d01e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b90d77e5fd784ada62ddd714d15ee2400c28e1cf"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42075.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-42075"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"317460317a02a1af512697e6e964298dedd8a163"},{"fixed":"87496a1b01e8e2e399428c0db25e106f7961d01e"},{"fixed":"b90d77e5fd784ada62ddd714d15ee2400c28e1cf"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42075.json"}}],"schema_version":"1.7.5"}