kernel: bpf: Mark bpf_btf_find_by_name_kind() as sleepable

cve CVE-2026-98046 3 sources, 4 claims · Watch

Red Hat writes:
kernel: bpf: Mark bpf_btf_find_by_name_kind() as sleepable the claim

Severity they disagree: unknown GitHub advisories
low Red Hat
CVSS: 5.5 Red Hat
Vendor: Linux NVD
Product: Linux NVD
CWE: CWE-1322 Red Hat

How far exploitation has got

No public code known
Proof of concept
Proof of concept, verified
A Metasploit module
Exploited in the wild
Used in ransomware campaigns

Timeline

2026-09-25	first spoke of it: In the Linux kernel, the following vulnerability has been resolved: bpf: Mark...	GitHub advisories
2026-09-25	first spoke of it: In the Linux kernel, the following vulnerability has been resolved: bpf: Mark bpf_btf_find_by_name_kind() as sleepable When bpf_btf_find_by_name_kind() finds a type in module BTF, it returns a new BTF object fd through __btf_new_fd(). This reaches anon_inode_getfd(), which can sleep while allocating or expanding the current task fd table. The helper prototype does not set might_sleep, so the verifier allows the helper in non-sleepable contexts such as BPF timer callbacks. The fd allocation can then sleep in softirq context and install the fd into the interrupted task. Mark the helper as sleepable. This preserves calls from the main body of a sleepable syscall program while rejecting calls from its non-sleepable regions.	NVD
2026-09-25	first spoke of it: kernel: bpf: Mark bpf_btf_find_by_name_kind() as sleepable	Red Hat

What it is to other things

In words only, so not counted until a person confirms one:

affects	`linux/linux` NVD says “Linux · Linux”
made_by	`linux` NVD says “Linux”

Every value, with what each source said and its receipt

Property Source Said Means here

CVSS

cvss

Red Hat

5.5

receipt

Source: Red Hat
Its words: 5.5
Read by: field:cvss3_score
Said since: 2026-10-06 13:01 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-98046",
  "CWE": "CWE-1322",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2541185",
  "bugzilla_description": "kernel: bpf: Mark bpf_btf_find_by_name_kind() as sleepable",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-25T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-98046.json",
  "severity": "low"
}

—

CVSS vector

cvss_vector

Red Hat

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

receipt

Source: Red Hat
Its words: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Read by: field:cvss3_scoring_vector
Said since: 2026-10-06 13:01 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-98046",
  "CWE": "CWE-1322",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2541185",
  "bugzilla_description": "kernel: bpf: Mark bpf_btf_find_by_name_kind() as sleepable",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-25T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-98046.json",
  "severity": "low"
}

—

CWE

cwe

Red Hat

CWE-1322

receipt

Source: Red Hat
Its words: CWE-1322
Read by: field:CWE
Said since: 2026-10-06 13:01 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-98046",
  "CWE": "CWE-1322",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2541185",
  "bugzilla_description": "kernel: bpf: Mark bpf_btf_find_by_name_kind() as sleepable",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-25T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-98046.json",
  "severity": "low"
}

—

Product

product

NVD

Linux

receipt

Source: NVD
Its words: Linux
Read by: field:cve.affected[].affectedData[].product
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	Linux
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Linux",
            "programFiles": [
              "kernel/bpf/btf.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "lessThan": "29e40175617216fbd4544529f6bfb51d1ab95ba1",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              },
              {
                "lessThan": "4d8784226bd3c6a707975081f986078f40456cec",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              },
              {
                "lessThan": "17f54a8f2b9714529d56edbbe12d448ccdbbf469",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              },
              {
                "lessThan": "620614bf7672130c43b3cff375525a2202f61979",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              }
            ]
          },
          {
            "defaultStatus": "affected",
            "product": "Linux",
            "programFiles": [
              "kernel/bpf/btf.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "status": "affected",
                "version": "5.14"
              },
              {
                "lessThan": "5.14",
                "status": "unaffected",
                "version": "0",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.12.*",
                "status": "unaffected",
                "version": "6.12.111",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.18.*",
                "status": "unaffected",
                "version": "6.18.53",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "7.2.*",
                "status": "unaffected",
                "version": "7.2.7",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "7.3-rc2",
                "versionType": "original_commit_for_fix"
              }
            ]
          }
        ],
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark bpf_btf_find_by_name_kind() as sleepable\n\nWhen bpf_btf_find_by_name_kind() finds a type in module BTF, it\nreturns a new BTF object fd through __btf_new_fd(). This reaches\nanon_inode_getfd(), which can sleep while allocating or expanding the\ncurrent task fd table.\n\nThe helper prototype does not set might_sleep, so the verifier allows\nthe helper in non-sleepable contexts such as BPF timer callbacks. The\nfd allocation can then sleep in softirq context and install the fd into\nthe interrupted task.\n\nMark the helper as sleepable. This preserves calls from the main body\nof a sleepable syscall program while rejecting calls from its\nnon-sleepable regions."
      }
    ],
    "id": "CVE-2026-98046",
    "lastModified": "2026-09-25T11:17:33.440",
    "metrics": {},
    "published": "2026-09-25T11:17:33.440",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/17f54a8f2b9714529d56edbbe12d448ccdbbf469"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/29e40175617216fbd4544529f6bfb51d1ab95ba1"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/4d8784226bd3c6a707975081f986078f40456cec"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/620614bf7672130c43b3cff375525a2202f61979"
      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Received"
  }
}

—

Severity

severity

conflict

GitHub advisories

unknown

receipt

Source: GitHub advisories
Said since: 2026-09-26 15:00 UTC
Last answered: 2026-10-06 13:46 UTC
Original: open at the source

This source has not kept a receipt for this claim yet. The next update that reads it will.

—

Severity

severity

conflict

Red Hat

low

A flaw that is unlikely to be exploited, or whose impact is minimal.

receipt

Source: Red Hat
Its words: low
Read by: field:severity
Said since: 2026-10-06 13:01 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-98046",
  "CWE": "CWE-1322",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2541185",
  "bugzilla_description": "kernel: bpf: Mark bpf_btf_find_by_name_kind() as sleepable",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-25T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-98046.json",
  "severity": "low"
}

—

Status

status

NVD

Received

receipt

Source: NVD
Its words: Received
Read by: field:cve.vulnStatus
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Linux",
            "programFiles": [
              "kernel/bpf/btf.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "lessThan": "29e40175617216fbd4544529f6bfb51d1ab95ba1",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              },
              {
                "lessThan": "4d8784226bd3c6a707975081f986078f40456cec",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              },
              {
                "lessThan": "17f54a8f2b9714529d56edbbe12d448ccdbbf469",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              },
              {
                "lessThan": "620614bf7672130c43b3cff375525a2202f61979",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              }
            ]
          },
          {
            "defaultStatus": "affected",
            "product": "Linux",
            "programFiles": [
              "kernel/bpf/btf.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "status": "affected",
                "version": "5.14"
              },
              {
                "lessThan": "5.14",
                "status": "unaffected",
                "version": "0",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.12.*",
                "status": "unaffected",
                "version": "6.12.111",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.18.*",
                "status": "unaffected",
                "version": "6.18.53",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "7.2.*",
                "status": "unaffected",
                "version": "7.2.7",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "7.3-rc2",
                "versionType": "original_commit_for_fix"
              }
            ]
          }
        ],
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark bpf_btf_find_by_name_kind() as sleepable\n\nWhen bpf_btf_find_by_name_kind() finds a type in module BTF, it\nreturns a new BTF object fd through __btf_new_fd(). This reaches\nanon_inode_getfd(), which can sleep while allocating or expanding the\ncurrent task fd table.\n\nThe helper prototype does not set might_sleep, so the verifier allows\nthe helper in non-sleepable contexts such as BPF timer callbacks. The\nfd allocation can then sleep in softirq context and install the fd into\nthe interrupted task.\n\nMark the helper as sleepable. This preserves calls from the main body\nof a sleepable syscall program while rejecting calls from its\nnon-sleepable regions."
      }
    ],
    "id": "CVE-2026-98046",
    "lastModified": "2026-09-25T11:17:33.440",
    "metrics": {},
    "published": "2026-09-25T11:17:33.440",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/17f54a8f2b9714529d56edbbe12d448ccdbbf469"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/29e40175617216fbd4544529f6bfb51d1ab95ba1"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/4d8784226bd3c6a707975081f986078f40456cec"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/620614bf7672130c43b3cff375525a2202f61979"
      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Received"
  }
}

—

Vendor

vendor

NVD

Linux

receipt

Source: NVD
Its words: Linux
Read by: field:cve.affected[].affectedData[].vendor
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	Linux
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Linux",
            "programFiles": [
              "kernel/bpf/btf.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "lessThan": "29e40175617216fbd4544529f6bfb51d1ab95ba1",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              },
              {
                "lessThan": "4d8784226bd3c6a707975081f986078f40456cec",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              },
              {
                "lessThan": "17f54a8f2b9714529d56edbbe12d448ccdbbf469",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              },
              {
                "lessThan": "620614bf7672130c43b3cff375525a2202f61979",
                "status": "affected",
                "version": "3d78417b60fba249cc555468cb72d96f5cde2964",
                "versionType": "git"
              }
            ]
          },
          {
            "defaultStatus": "affected",
            "product": "Linux",
            "programFiles": [
              "kernel/bpf/btf.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "status": "affected",
                "version": "5.14"
              },
              {
                "lessThan": "5.14",
                "status": "unaffected",
                "version": "0",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.12.*",
                "status": "unaffected",
                "version": "6.12.111",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.18.*",
                "status": "unaffected",
                "version": "6.18.53",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "7.2.*",
                "status": "unaffected",
                "version": "7.2.7",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "7.3-rc2",
                "versionType": "original_commit_for_fix"
              }
            ]
          }
        ],
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark bpf_btf_find_by_name_kind() as sleepable\n\nWhen bpf_btf_find_by_name_kind() finds a type in module BTF, it\nreturns a new BTF object fd through __btf_new_fd(). This reaches\nanon_inode_getfd(), which can sleep while allocating or expanding the\ncurrent task fd table.\n\nThe helper prototype does not set might_sleep, so the verifier allows\nthe helper in non-sleepable contexts such as BPF timer callbacks. The\nfd allocation can then sleep in softirq context and install the fd into\nthe interrupted task.\n\nMark the helper as sleepable. This preserves calls from the main body\nof a sleepable syscall program while rejecting calls from its\nnon-sleepable regions."
      }
    ],
    "id": "CVE-2026-98046",
    "lastModified": "2026-09-25T11:17:33.440",
    "metrics": {},
    "published": "2026-09-25T11:17:33.440",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/17f54a8f2b9714529d56edbbe12d448ccdbbf469"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/29e40175617216fbd4544529f6bfb51d1ab95ba1"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/4d8784226bd3c6a707975081f986078f40456cec"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/620614bf7672130c43b3cff375525a2202f61979"
      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Received"
  }
}

—

Every claim, by kind

vulnerability

kernel: bpf: Mark bpf_btf_find_by_name_kind() as sleepable zetlyn/cve-redhat · 2026-09-25	cvss 5.5 cvss_vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H cwe CWE-1322 severity low	source
In the Linux kernel, the following vulnerability has been resolved: bpf: Mark bpf_btf_find_by_name_kind() as sleepable When bpf_btf_find_by_name_kind() finds a type in module BTF, it returns a new BTF object fd through __btf_new_fd(). This reaches anon_inode_getfd(), which can sleep while allocating or expanding the current task fd table. The helper prototype does not set might_sleep, so the verifier allows the helper in non-sleepable contexts such as BPF timer callbacks. The fd allocation can then sleep in softirq context and install the fd into the interrupted task. Mark the helper as sleepable. This preserves calls from the main body of a sleepable syscall program while rejecting calls from its non-sleepable regions. zetlyn/cve-nvd · 2026-09-25	product Linux status Received vendor Linux	source
In the Linux kernel, the following vulnerability has been resolved: bpf: Mark... zetlyn/cve-ghsa · 2026-09-25	severity unknown	source
In the Linux kernel, the following vulnerability has been resolved: bpf: Mark... zetlyn/cve-ghsa · 2026-09-25	severity unknown	source