---
id: CVE-2024-38662
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  bpf: Allow delete from sockmap/sockhash only if update is allowed

  We have seen an influx of syzkaller reports where a BPF program attached to
  a tracepoint triggers a l…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  bpf: Allow delete from sockmap/sockhash only if update is allowed

  We have seen an influx of syzkaller reports where a BPF program attached to
  a tracepoint triggers a l…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N'
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.10, < 5.10.219'
  - 'linux_kernel >= 5.15, < 5.15.161'
  - 'linux_kernel >= 6.1, < 6.1.93'
  - 'linux_kernel >= 6.6, < 6.6.33'
  - 'linux_kernel >= 6.9, < 6.9.4'
  - linux_kernel = 6.10.0
patched:
  - linux_kernel 6.9.4
published: '2024-06-21'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:18:32.737'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-38662'
references:
  - url: 'https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63d'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1e'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3c'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-613116.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00222
epssPercentile: 0.12634
ingestedAt: '2026-10-15T03:30:12.713Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-06-21T13:43:09.177225Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

bpf: Allow delete from sockmap/sockhash only if update is allowed

We have seen an influx of syzkaller reports where a BPF program attached to
a tracepoint triggers a locking rule violation by performing a map_delete
on a sockmap/sockhash.

We don't intend to support this artificial use scenario. Extend the
existing verifier allowed-program-type check for updating sockmap/sockhash
to also cover deleting from a map.

From now on only BPF programs which were previously allowed to update
sockmap/sockhash can delete from these map types.

## Affected

- `linux_kernel >= 5.10, < 5.10.219`
- `linux_kernel >= 5.15, < 5.15.161`
- `linux_kernel >= 6.1, < 6.1.93`
- `linux_kernel >= 6.6, < 6.6.33`
- `linux_kernel >= 6.9, < 6.9.4`
- `linux_kernel = 6.10.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.9.4`