Description
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix array bounds error with may_goto
may_goto uses an additional 8 bytes on the stack, which causes the interpreters[] array to go out of bounds when calculating index by stack_size.
1. If a BPF program is rewritten, re-evaluate the stack size. For non-JIT cases, reject loading directly.
2. For non-JIT cases, calculating interpreters[idx] may still cause out-of-bounds array access, and just warn about it.
3. For jit_requested cases, the execution of bpf_func also needs to be warned. So move the definition of function __bpf_prog_ret0_warn out of the macro definition CONFIG_BPF_JIT_ALWAYS_ON.
Metrics
CVSS 3.1 7.1/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 011832b97b311bb9e3c27945bc0d1089a14209c9, < 19e6817f84000d0b06f09fd69ebd56217842c122; >= 011832b97b311bb9e3c27945bc0d1089a14209c9, < 4524b7febdd55fb99ae2e1f48db64019fa69e643; >= 011832b97b311bb9e3c27945bc0d1089a14209c9, < 1a86ae57b2600e5749f5f674e9d4296ac00c69a8; >= 011832b97b311bb9e3c27945bc0d1089a14209c9, < 6ebc5030e0c5a698f1dd9a6684cddf6ccaed64a0 |
| Linux | Linux | 6.9 |
References
- https://git.kernel.org/stable/c/19e6817f84000d0b06f09fd69ebd56217842c122Patch
- https://git.kernel.org/stable/c/1a86ae57b2600e5749f5f674e9d4296ac00c69a8Patch
- https://git.kernel.org/stable/c/4524b7febdd55fb99ae2e1f48db64019fa69e643Patch
- https://git.kernel.org/stable/c/6ebc5030e0c5a698f1dd9a6684cddf6ccaed64a0Patch
Timeline
- Published
- Apr 16, 2025
- Last modified
- Jul 30, 2026
- NVD status
- Modified