CVE-2023-52992 (GCVE-0-2023-52992)
Vulnerability from cvelistv5
Published
2025-03-27 16:43
Modified
2025-09-03 12:59
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Skip task with pid=1 in send_signal_common() The following kernel panic can be triggered when a task with pid=1 attaches a prog that attempts to send killing signal to itself, also see [1] for more details: Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b CPU: 3 PID: 1 Comm: systemd Not tainted 6.1.0-09652-g59fe41b5255f #148 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x100/0x178 lib/dump_stack.c:106 panic+0x2c4/0x60f kernel/panic.c:275 do_exit.cold+0x63/0xe4 kernel/exit.c:789 do_group_exit+0xd4/0x2a0 kernel/exit.c:950 get_signal+0x2460/0x2600 kernel/signal.c:2858 arch_do_signal_or_restart+0x78/0x5d0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd So skip task with pid=1 in bpf_send_signal_common() to avoid the panic. [1] https://lore.kernel.org/bpf/20221222043507.33037-1-sunhao.th@gmail.com
References
Impacted products
Vendor Product Version
Linux Linux Version: 8b401f9ed2441ad9e219953927a842d24ed051fc
Version: 8b401f9ed2441ad9e219953927a842d24ed051fc
Version: 8b401f9ed2441ad9e219953927a842d24ed051fc
Version: 8b401f9ed2441ad9e219953927a842d24ed051fc
Version: 8b401f9ed2441ad9e219953927a842d24ed051fc
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{
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          "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  \u003cTASK\u003e\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"
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        "dateUpdated": "2025-09-03T12:59:10.856Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52992",
    "datePublished": "2025-03-27T16:43:27.618Z",
    "dateReserved": "2025-03-27T16:40:15.741Z",
    "dateUpdated": "2025-09-03T12:59:10.856Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52992\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-03-27T17:15:46.670\",\"lastModified\":\"2025-10-29T17:00:21.580\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"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  \u003cTASK\u003e\\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\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Omitir tarea con pid=1 en send_signal_common() El siguiente p\u00e1nico del kernel se puede activar cuando una tarea con pid=1 adjunta un programa que intenta enviarse una se\u00f1al de eliminaci\u00f3n a s\u00ed mismo, consulte tambi\u00e9n [1] para obtener m\u00e1s detalles: P\u00e1nico del kernel - no sincroniza: \u00a1Intento de eliminar init! exitcode=0x0000000b CPU: 3 PID: 1 Comm: systemd No contaminado 6.1.0-09652-g59fe41b5255f #148 Rastreo de llamadas:   __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x100/0x178 lib/dump_stack.c:106 panic+0x2c4/0x60f kernel/panic.c:275 do_exit.cold+0x63/0xe4 kernel/exit.c:789 do_group_exit+0xd4/0x2a0 kernel/exit.c:950 get_signal+0x2460/0x2600 kernel/signal.c:2858 arch_do_signal_or_restart+0x78/0x5d0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd So skip task with pid=1 in bpf_send_signal_common() para evitar el p\u00e1nico. [1] https://lore.kernel.org/bpf/20221222043507.33037-1-sunhao.th@gmail.com\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.3\",\"versionEndExcluding\":\"5.4.231\",\"matchCriteriaId\":\"2D5DFD8E-5123-4DBE-9A89-E94ACED477D0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.167\",\"matchCriteriaId\":\"3B6D1442-2F69-4ED4-9A3E-23FCDBEE6094\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.92\",\"matchCriteriaId\":\"82E7FA6E-E503-40DE-995C-EB8E2C9CDAE3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.10\",\"matchCriteriaId\":\"482D2612-A4D4-4A68-AC23-52F6BE89878B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF501633-2F44-4913-A8EE-B021929F49F6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"2BDA597B-CAC1-4DF0-86F0-42E142C654E9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"725C78C9-12CE-406F-ABE8-0813A01D66E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A127C155-689C-4F67-B146-44A57F4BFD85\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0dfef503133565fa0bcf3268d8eeb5b181191a65\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1283a01b6e19d05f7ed49584ea653947245cd41e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4923160393b06a34759a11b17930d71e06f396f2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a1c0263f1eb4deee132e11e52ee6982435460d81\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a3d81bc1eaef48e34dd0b9b48eefed9e02a06451\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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