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CVE-2026-98041 bpf: Don't predict JMP32 pointer vs zero comparisons

🗓️ 25 Sep 2026 10:23:53Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 41 Views

Linux kernel bpf is_branch_taken fails to distinguish JMP vs JMP32, causing prediction errors.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/verifier.c"
    ],
    "versions": [
      {
        "version": "cac616db39c207dc63465a4e05c6ce0e60b2cce4",
        "lessThan": "d16f0eafcaa62e677a2b5b0dabc1f8d31dfe3d4d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cac616db39c207dc63465a4e05c6ce0e60b2cce4",
        "lessThan": "e2ae33247e8b2dbe9d116d3e61cadf6d548339c6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cac616db39c207dc63465a4e05c6ce0e60b2cce4",
        "lessThan": "a4d7f94c1ca914469ced665ec2f98be669aef462",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cac616db39c207dc63465a4e05c6ce0e60b2cce4",
        "lessThan": "e51179a4e09846f8fd0f26a05068520de2b301bf",
        "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/bpf/verifier.c"
    ],
    "versions": [
      {
        "version": "5.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.111",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.53",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.7",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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25 Sep 2026 14:41Current
CVSS 3.17
EPSS0.00144
41