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CVE-2026-98642

🗓️ 18 Oct 2026 15:20:13Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 7 Views

Use-after-free in Linux kernel bpf memalloc due to concurrent ttrace list consumption.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cnnvd
CNNVD
Linux Kernel Security Vulnerabilities
17 Oct 202616:00
–cnnvd
cvelist
Cvelist
CVE-2026-98642 bpf: Fix UAF due to concurrent consumption of ttrace lists in alloc_bulk
18 Oct 202615:20
–cvelist
debiancve
Debian CVE
CVE-2026-98642
18 Oct 202615:20
–debiancve
euvd
EUVD
EUVD-2026-103556
18 Oct 202615:20
–euvd
mscve
Microsoft CVE
bpf: Fix UAF due to concurrent consumption of ttrace lists in alloc_bulk
20 Oct 202608:07
–mscve
nvd
NVD
CVE-2026-98642
18 Oct 202616:17
–nvd
osv_azl
osv_azl
AZL-109311 CVE-2026-98642 affecting package kernel 6.6.157.1-1
18 Oct 202616:17
–osv_azl
osv_debian
osv_debian
DEBIAN-CVE-2026-98642
18 Oct 202617:47
–osv_debian
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2026-98642
19 Oct 202600:00
–osv_ubuntu
ptsecurity
Positive Technologies
PT-2026-116861
18 Oct 202600:00
–ptsecurity
Rows per page
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.6–6.12.112
linuxlinux_kernelRange6.13.0–6.18.55
linuxlinux_kernelRange6.19.0–7.2.9
linuxlinux_kernelRange7.3.0≥
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/memalloc.c"
    ],
    "versions": [
      {
        "version": "04fabf00b4d3aff5d010ecb617001814e409e24a",
        "lessThan": "a0e150a118025a05c8662c536ba2a865da86419c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "04fabf00b4d3aff5d010ecb617001814e409e24a",
        "lessThan": "1d6581b544a88cf4348c2fb60dcb50ad63f012da",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "04fabf00b4d3aff5d010ecb617001814e409e24a",
        "lessThan": "f101602415fb39a58941bec444df65634d5a6844",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "04fabf00b4d3aff5d010ecb617001814e409e24a",
        "lessThan": "1c21452d02eec2f008e2c5535820f85adbd7587a",
        "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/memalloc.c"
    ],
    "versions": [
      {
        "version": "6.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.112",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.55",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.9",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Oct 2026 10:19Current
6.8Medium risk
Vulners AI Score6.8
EPSS0.00168
7