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 bpf_obj_free_fields+0x190/0x238 (target:
bpf_crypto_ctx_release+0x0/0x94; expected type: 0xa488ebfc)
Internal error: Oops - CFI: 00000000f2008228 [#1] SMP
...
As bpf_crypto_ctx_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
Configurations
Configuration 1 (hide)
|
History
15 May 2026, 19:53
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/3979a550fe06b370d73647f59cf462fa525c9ec4 - Patch | |
| References | () https://git.kernel.org/stable/c/4e3e57dbf46dad3498f8c4219ce2dba756875962 - Patch | |
| References | () https://git.kernel.org/stable/c/50d6fd69388cc7b05dce72f09080674dcede4ac9 - Patch | |
| References | () https://git.kernel.org/stable/c/b40a5d724f29fc2eed23ff353808a9aae616b48a - Patch | |
| CWE | NVD-CWE-noinfo |
08 May 2026, 14:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-08 14:16
Updated : 2026-05-15 19:53
NVD link : CVE-2026-43306
Mitre link : CVE-2026-43306
CVE.ORG link : CVE-2026-43306
JSON object : View
Products Affected
linux
- linux_kernel
CWE