{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-52992",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-03-27T16:40:15.741Z",
        "datePublished": "2025-03-27T16:43:27.618Z",
        "dateUpdated": "2026-05-11T19:36:31.658Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:36:31.658Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Skip task with pid=1 in send_signal_common()\n\nThe following kernel panic can be triggered when a task with pid=1 attaches\na prog that attempts to send killing signal to itself, also see [1] for more\ndetails:\n\n  Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b\n  CPU: 3 PID: 1 Comm: systemd Not tainted 6.1.0-09652-g59fe41b5255f #148\n  Call Trace:\n  <TASK>\n  __dump_stack lib/dump_stack.c:88 [inline]\n  dump_stack_lvl+0x100/0x178 lib/dump_stack.c:106\n  panic+0x2c4/0x60f kernel/panic.c:275\n  do_exit.cold+0x63/0xe4 kernel/exit.c:789\n  do_group_exit+0xd4/0x2a0 kernel/exit.c:950\n  get_signal+0x2460/0x2600 kernel/signal.c:2858\n  arch_do_signal_or_restart+0x78/0x5d0 arch/x86/kernel/signal.c:306\n  exit_to_user_mode_loop kernel/entry/common.c:168 [inline]\n  exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203\n  __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]\n  syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296\n  do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nSo skip task with pid=1 in bpf_send_signal_common() to avoid the panic.\n\n  [1] https://lore.kernel.org/bpf/20221222043507.33037-1-sunhao.th@gmail.com"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/trace/bpf_trace.c"
                    ],
                    "versions": [
                        {
                            "version": "8b401f9ed2441ad9e219953927a842d24ed051fc",
                            "lessThan": "4923160393b06a34759a11b17930d71e06f396f2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8b401f9ed2441ad9e219953927a842d24ed051fc",
                            "lessThan": "a1c0263f1eb4deee132e11e52ee6982435460d81",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8b401f9ed2441ad9e219953927a842d24ed051fc",
                            "lessThan": "0dfef503133565fa0bcf3268d8eeb5b181191a65",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8b401f9ed2441ad9e219953927a842d24ed051fc",
                            "lessThan": "1283a01b6e19d05f7ed49584ea653947245cd41e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8b401f9ed2441ad9e219953927a842d24ed051fc",
                            "lessThan": "a3d81bc1eaef48e34dd0b9b48eefed9e02a06451",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/trace/bpf_trace.c"
                    ],
                    "versions": [
                        {
                            "version": "5.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.231",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.167",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.92",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.10",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "5.4.231"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "5.10.167"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "5.15.92"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "6.1.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "6.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/4923160393b06a34759a11b17930d71e06f396f2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a1c0263f1eb4deee132e11e52ee6982435460d81"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0dfef503133565fa0bcf3268d8eeb5b181191a65"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1283a01b6e19d05f7ed49584ea653947245cd41e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a3d81bc1eaef48e34dd0b9b48eefed9e02a06451"
                }
            ],
            "title": "bpf: Skip task with pid=1 in send_signal_common()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}