{
  "threat_severity" : "Low",
  "public_date" : "2025-03-27T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: bpf: Skip invalid kfunc call in backtrack_insn",
    "id" : "2355443",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2355443"
  },
  "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-665",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nbpf: Skip invalid kfunc call in backtrack_insn\nThe verifier skips invalid kfunc call in check_kfunc_call(), which\nwould be captured in fixup_kfunc_call() if such insn is not eliminated\nby dead code elimination. However, this can lead to the following\nwarning in backtrack_insn(), also see [1]:\n------------[ cut here ]------------\nverifier backtracking bug\nWARNING: CPU: 6 PID: 8646 at kernel/bpf/verifier.c:2756 backtrack_insn\nkernel/bpf/verifier.c:2756\n__mark_chain_precision kernel/bpf/verifier.c:3065\nmark_chain_precision kernel/bpf/verifier.c:3165\nadjust_reg_min_max_vals kernel/bpf/verifier.c:10715\ncheck_alu_op kernel/bpf/verifier.c:10928\ndo_check kernel/bpf/verifier.c:13821 [inline]\ndo_check_common kernel/bpf/verifier.c:16289\n[...]\nSo make backtracking conservative with this by returning ENOTSUPP.\n[1] https://lore.kernel.org/bpf/CACkBjsaXNceR8ZjkLG=dT3P=4A8SBsg0Z5h5PWLryF5=ghKq=g@mail.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-2023-52928\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52928\nhttps://lore.kernel.org/linux-cve-announce/2025032718-CVE-2023-52928-e380@gregkh/T" ],
  "name" : "CVE-2023-52928",
  "csaw" : false
}