Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 011832b97b311bb9e3c27945bc0d1089a14209c9 before 19e6817f84000d0b06f09fd69ebd56217842c122; affected 011832b97b311bb9e3c27945bc0d1089a14209c9 before 4524b7febdd55fb99ae2e1f48db64019fa69e643; affected 011832b97b311bb9e3c27945bc0d1089a14209c9 before 1a86ae57b2600e5749f5f674e9d4296ac00c69a8; affected 011832b97b311bb9e3c27945bc0d1089a14209c9 before 6ebc5030e0c5a698f1dd9a6684cddf6ccaed64a0 |
| Linux / Linux | affected 6.9; unaffected 0 before 6.9; unaffected 6.12.23 through 6.12.*; unaffected 6.13.11 through 6.13.*; unaffected 6.14.2 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.