AZL-42847
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-42847.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-42847
- Upstream
- Published
- 2024-06-21T12:15:11Z
- Modified
- 2026-04-01T05:14:52.194728Z
- 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
- CVE-2024-38662 affecting package kernel for versions less than 6.6.35.1-4
- 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