CVE-2026-45838
Published: May 28, 2026Last modified: June 2, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: fix end-of-list detection in cgroup_storage_get_next_key() list_next_entry() never returns NULL -- when the current element is the last entry it wraps to the list head via container_of(). The subsequent NULL check is therefore dead code and get_next_key() never returns -ENOENT for the last element, instead reading storage->key from a bogus pointer that aliases internal map fields and copying the result to userspace. Replace it with list_entry_is_head() so the function correctly returns -ENOENT when there are no more entries.
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.175-r0) |
| 25 LTS | linux-lts | Fixed (6.12.92-r0) | |
| Stream | linux-lts | Fixed (6.12.92-r0) |
References
- https://git.kernel.org/stable/c/0f3d9dd5e1fd52b39e25328307c6a694e994ffe3
- https://git.kernel.org/stable/c/26d3339e465e54107bd85884341d1609c5300d6a
- https://git.kernel.org/stable/c/2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6
- https://git.kernel.org/stable/c/32ce55d424395904986f5066f8755f6cb9993377
- https://git.kernel.org/stable/c/5828b9e5b272ecff7cf5d345128d3de7324117f7
- https://git.kernel.org/stable/c/85a2f30e40f7468db732f55659bc6318874f49af
- https://git.kernel.org/stable/c/b4b5a20bed82130da2f2818f04d52378952fbd0b
- https://git.kernel.org/stable/c/fc39753b7f92e09177777e9c648afe5aa3abb81f