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CVE-2026-98084 bpf: backtracking shouldn't clear outer frame R1-R5 for callbacks

🗓️ 25 Sep 2026 10:24:19Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 45 Views

Linux kernel bpf verifier logic error allows for unsafe programs via bpf_loop.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-98084
25 Sep 202610:24
–cve
debiancve
Debian CVE
CVE-2026-98084
25 Sep 202610:24
–debiancve
euvd
EUVD
EUVD-2026-86914
25 Sep 202610:24
–euvd
mscve
Microsoft CVE
bpf: backtracking shouldn't clear outer frame R1-R5 for callbacks
28 Sep 202606:56
–mscve
nvd
NVD
CVE-2026-98084
25 Sep 202611:17
–nvd
osv_azl
osv_azl
AZL-104294 CVE-2026-98084 affecting package kernel 6.6.157.1-1
25 Sep 202611:17
–osv_azl
osv_bell
osv_bell
BELL-CVE-2026-98084
29 Sep 202606:08
–osv_bell
osv_debian
osv_debian
DEBIAN-CVE-2026-98084
25 Sep 202611:17
–osv_debian
osv_opensuse
osv_opensuse
OPENSUSE-SU-2026:12074-1 kernel-devel-7.2.9-1.1 on GA media
7 Oct 202600:00
–osv_opensuse
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2026-98084
25 Sep 202611:17
–osv_ubuntu
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/backtrack.c"
    ],
    "versions": [
      {
        "version": "ab5cfac139ab8576fb54630d4cca23c3e690ee90",
        "lessThan": "3a39bc9707fbd1bef4df7318a9d02222741dda5b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab5cfac139ab8576fb54630d4cca23c3e690ee90",
        "lessThan": "f83890dfed9efc5e19df1dbc1ad707a142936923",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab5cfac139ab8576fb54630d4cca23c3e690ee90",
        "lessThan": "e3e4f66cc4b72333d0886ae2673c360248987889",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b43550d7d58e7ae6618aaab18c1e912fa4d6e3dd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.6.15",
        "lessThan": "6.7",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/backtrack.c"
    ],
    "versions": [
      {
        "version": "6.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.57",
        "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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