AZL-68519
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-68519.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-68519
- Upstream
- Published
- 2025-10-15T08:15:37Z
- Modified
- 2026-04-01T05:21:26.097614Z
- Summary
- CVE-2025-39990 affecting package kernel 6.6.126.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Check the helper function is valid in gethelperproto
kernel test robot reported verifier bug [1] where the helper func pointer could be NULL due to disabled config option.
As Alexei suggested we could check on that in gethelperproto directly. Marking tailcall helper func with BPFPTR_POISON, because it is unused by design.
[1] https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@intel.com
- References