{
  "threat_severity" : "Moderate",
  "public_date" : "2025-03-27T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: bpf: Skip task with pid=1 in send_signal_common()",
    "id" : "2355487",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2355487"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.7",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-364",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nbpf: Skip task with pid=1 in send_signal_common()\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:\nKernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b\nCPU: 3 PID: 1 Comm: systemd Not tainted 6.1.0-09652-g59fe41b5255f #148\nCall Trace:\n<TASK>\n__dump_stack lib/dump_stack.c:88 [inline]\ndump_stack_lvl+0x100/0x178 lib/dump_stack.c:106\npanic+0x2c4/0x60f kernel/panic.c:275\ndo_exit.cold+0x63/0xe4 kernel/exit.c:789\ndo_group_exit+0xd4/0x2a0 kernel/exit.c:950\nget_signal+0x2460/0x2600 kernel/signal.c:2858\narch_do_signal_or_restart+0x78/0x5d0 arch/x86/kernel/signal.c:306\nexit_to_user_mode_loop kernel/entry/common.c:168 [inline]\nexit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203\n__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]\nsyscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296\ndo_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\nSo skip task with pid=1 in bpf_send_signal_common() to avoid the panic.\n[1] https://lore.kernel.org/bpf/20221222043507.33037-1-sunhao.th@gmail.com" ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-52992\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52992\nhttps://lore.kernel.org/linux-cve-announce/2025032709-CVE-2023-52992-bf46@gregkh/T" ],
  "name" : "CVE-2023-52992",
  "csaw" : false
}