CVE-2026-98019
Published: September 29, 2026Last modified: October 23, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: mark a NULL call argument precise check_func_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. check_helper_call() enforces second parameter of the bpf_get_local_storage() to be zero, w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Grouping these two into one patch, as they share the same fixes tag.
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Vulnerable (6.1.182-r0) |
| 25 LTS | linux-lts | Vulnerable (6.12.111-r0) | |
| Stream | linux-lts | Fixed (6.18.58-r0) |
References
- https://git.kernel.org/stable/c/1a3a10b030c96ea88868ccc060a16827c01eaa5a
- https://git.kernel.org/stable/c/627089c278df58749f25686c6a3caf7e181b5951
- https://git.kernel.org/stable/c/69a9ad004ccf5d45e534c7d503f47f643abe64b7
- https://git.kernel.org/stable/c/b1fe6379e401b8ce0f561cb4d84af2b70b4343c3
- https://git.kernel.org/stable/c/febbb66e682d8328f7c5bcbdd5e4291abab2e858