AZL-86148
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-86148.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-86148
- Upstream
- Published
- 2026-05-08T14:16:37Z
- Modified
- 2026-08-28T17:47:58.694180225Z
- Summary
- CVE-2026-43306 affecting package kernel for versions less than 6.6.138.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: crypto: Use the correct destructor kfunc type
With CONFIG_CFI enabled, the kernel strictly enforces that indirect function calls use a function pointer type that matches the target function. I ran into the following type mismatch when running BPF self-tests:
CFI failure at bpfobjfreefields+0x190/0x238 (target: bpfcryptoctxrelease+0x0/0x94; expected type: 0xa488ebfc) Internal error: Oops - CFI: 00000000f2008228 [#1] SMP ...
As bpfcryptoctx_release() is also used in BPF programs and using a void pointer as the argument would make the verifier unhappy, add a simple stub function with the correct type and register it as the destructor kfunc instead.
- References