{"id":"CVE-2024-40996","summary":"bpf: Avoid splat in pskb_pull_reason","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Avoid splat in pskb_pull_reason\n\nsyzkaller builds (CONFIG_DEBUG_NET=y) frequently trigger a debug\nhint in pskb_may_pull.\n\nWe'd like to retain this debug check because it might hint at integer\noverflows and other issues (kernel code should pull headers, not huge\nvalue).\n\nIn bpf case, this splat isn't interesting at all: such (nonsensical)\nbpf programs are typically generated by a fuzzer anyway.\n\nDo what Eric suggested and suppress such warning.\n\nFor CONFIG_DEBUG_NET=n we don't need the extra check because\npskb_may_pull will do the right thing: return an error without the\nWARN() backtrace.","modified":"2026-03-20T12:37:27.764584Z","published":"2024-07-12T12:37:38.454Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40996.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2bbe3e5a2f4ef69d13be54f1cf895b4658287080"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5e90258303a358e88737afb5048bee9113beea3a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7f9644782c559635bd676c12c59389a34ed7c866"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dacc15e9cb248d19e5fc63c54bef0b9b55007761"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40996.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-40996"},{"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":"8af60bb2b215f478b886f1d6d302fefa7f0b917d"},{"fixed":"dacc15e9cb248d19e5fc63c54bef0b9b55007761"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1b2b26595bb09febf14c5444c873ac4ec90a5a77"},{"fixed":"7f9644782c559635bd676c12c59389a34ed7c866"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"219eee9c0d16f1b754a8b85275854ab17df0850a"},{"fixed":"5e90258303a358e88737afb5048bee9113beea3a"},{"fixed":"2bbe3e5a2f4ef69d13be54f1cf895b4658287080"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"fff05b2b004d9a8a2416d08647f3dc9068e357c8"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-40996.json"}}],"schema_version":"1.7.5"}