{"cve":"CVE-2022-50883","nvd":{"published":"2025-12-30T13:16:03.387","modified":"2026-06-17T05:24:20.957","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Prevent decl_tag from being referenced in func_proto arg\n\nSyzkaller managed to hit another decl_tag issue:\n\n  btf_func_proto_check kernel/bpf/btf.c:4506 [inline]\n  btf_check_all_types kernel/bpf/btf.c:4734 [inline]\n  btf_parse_type_sec+0x1175/0x1980 kernel/bpf/btf.c:4763\n  btf_parse kernel/bpf/btf.c:5042 [inline]\n  btf_new_fd+0x65a/0xb00 kernel/bpf/btf.c:6709\n  bpf_btf_load+0x6f/0x90 kernel/bpf/syscall.c:4342\n  __sys_bpf+0x50a/0x6c0 kernel/bpf/syscall.c:5034\n  __do_sys_bpf kernel/bpf/syscall.c:5093 [inline]\n  __se_sys_bpf kernel/bpf/syscall.c:5091 [inline]\n  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5091\n  do_syscall_64+0x54/0x70 arch/x86/entry/common.c:48\n\nThis seems similar to commit ea68376c8bed (\"bpf: prevent decl_tag from being\nreferenced in func_proto\") but for the argument.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/3f3d54962a032581996edda8e6bcbf7a30371234","https://git.kernel.org/stable/c/e6d276dcc9204f95632580c43d66c52ca502d7ec","https://git.kernel.org/stable/c/f17472d4599697d701aa239b4c475a506bccfd19"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2022-50883","score":0.00198,"percentile":0.0963,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}