CVE-2022-50883

In the Linux kernel, the following vulnerability has been resolved: bpf: Prevent decl_tag from being referenced in func_proto arg Syzkaller managed to hit another decl_tag issue: btf_func_proto_check kernel/bpf/btf.c:4506 [inline] btf_check_all_types kernel/bpf/btf.c:4734 [inline] btf_parse_type_sec+0x1175/0x1980 kernel/bpf/btf.c:4763 btf_parse kernel/bpf/btf.c:5042 [inline] btf_new_fd+0x65a/0xb00 kernel/bpf/btf.c:6709 bpf_btf_load+0x6f/0x90 kernel/bpf/syscall.c:4342 __sys_bpf+0x50a/0x6c0 kernel/bpf/syscall.c:5034 __do_sys_bpf kernel/bpf/syscall.c:5093 [inline] __se_sys_bpf kernel/bpf/syscall.c:5091 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5091 do_syscall_64+0x54/0x70 arch/x86/entry/common.c:48 This seems similar to commit ea68376c8bed ("bpf: prevent decl_tag from being referenced in func_proto") but for the argument.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/3f3d54962a032581996edda8e6bcbf7a30371234
https://git.kernel.org/stable/c/e6d276dcc9204f95632580c43d66c52ca502d7ec
https://git.kernel.org/stable/c/f17472d4599697d701aa239b4c475a506bccfd19

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-30 13:16

Updated : 2026-06-17 05:24

NVD link : CVE-2022-50883

Mitre link : CVE-2022-50883

CVE.ORG link : CVE-2022-50883

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2022-50883", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b5ea834dde6b6e7f75e51d5f66dac8cd7c97b5ef", "lessThan": "3f3d54962a032581996edda8e6bcbf7a30371234", "versionType": "git"}, {"status": "affected", "version": "b5ea834dde6b6e7f75e51d5f66dac8cd7c97b5ef", "lessThan": "e6d276dcc9204f95632580c43d66c52ca502d7ec", "versionType": "git"}, {"status": "affected", "version": "b5ea834dde6b6e7f75e51d5f66dac8cd7c97b5ef", "lessThan": "f17472d4599697d701aa239b4c475a506bccfd19", "versionType": "git"}], "programFiles": ["kernel/bpf/btf.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.16"}, {"status": "unaffected", "version": "0", "lessThan": "5.16", "versionType": "semver"}, {"status": "unaffected", "version": "6.0.16", "versionType": "semver", "lessThanOrEqual": "6.0.*"}, {"status": "unaffected", "version": "6.1.2", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["kernel/bpf/btf.c"], "defaultStatus": "affected"}]}], "published": "2025-12-30T13:16:03.387", "references": [{"url": "https://git.kernel.org/stable/c/3f3d54962a032581996edda8e6bcbf7a30371234", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e6d276dcc9204f95632580c43d66c52ca502d7ec", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f17472d4599697d701aa239b4c475a506bccfd19", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Deferred", "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-06-17T05:24:20.957", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}