CVE-2024-38662
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-38662
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-38662.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-38662
- Downstream
- Related
- Published
- 2024-06-21T12:15:11Z
- Modified
- 2025-08-09T20:01:27Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1
- https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9
- https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63d
- https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1e
- https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d
- https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3c