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CVE-2023-52992 (GCVE-0-2023-52992)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:43 – Updated: 2026-05-11 19:36
VLAI
Title
bpf: Skip task with pid=1 in send_signal_common()
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
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 8b401f9ed2441ad9e219953927a842d24ed051fc , < 4923160393b06a34759a11b17930d71e06f396f2 (git)
Affected: 8b401f9ed2441ad9e219953927a842d24ed051fc , < a1c0263f1eb4deee132e11e52ee6982435460d81 (git)
Affected: 8b401f9ed2441ad9e219953927a842d24ed051fc , < 0dfef503133565fa0bcf3268d8eeb5b181191a65 (git)
Affected: 8b401f9ed2441ad9e219953927a842d24ed051fc , < 1283a01b6e19d05f7ed49584ea653947245cd41e (git)
Affected: 8b401f9ed2441ad9e219953927a842d24ed051fc , < a3d81bc1eaef48e34dd0b9b48eefed9e02a06451 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (semver)
Unaffected: 5.4.231 , ≤ 5.4.* (semver)
Unaffected: 5.10.167 , ≤ 5.10.* (semver)
Unaffected: 5.15.92 , ≤ 5.15.* (semver)
Unaffected: 6.1.10 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "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"
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        "id": "CVE-2023-52992",
        "lastModified": "2026-06-17T06:44:04.377",
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      "cve": "CVE-2023-52992",
      "id": "CVE-2023-52992",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bpf: Skip task with pid=1 in send_signal_common()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52992.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:48:35Z",
      "cve": "CVE-2023-52992",
      "id": "CVE-2023-52992",
      "initial_release_date": "2025-03-28T03:38:18Z",
      "product_status:known_affected": "403",
      "product_status:known_not_affected": "277",
      "product_status:recommended": "251",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-52992",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52992.json",
      "version": "27"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.