Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Fix memory leak in bpf_jit_free() When bpf_int_jit_compile() is called for subprograms, it returns early during the first pass (!prog->is_func || extra_pass is false), keeping ctx->offset alive for the subsequent extra pass. If JIT compilation fails for a later subprogram, the BPF core aborts and calls bpf_jit_free() to clean up the first subprogram. However, bpf_jit_free() fails to free jit_data->ctx.offset, which causes a memory leak of the JIT context offsets array. So fix this by adding the missing kvfree(jit_data->ctx.offset) in bpf_jit_free().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4ab17e762b34c847478f694932c4cd4b1ac2c343 before f1557e0a64736b63aed24e285108a7bc3b7de294; affected 4ab17e762b34c847478f694932c4cd4b1ac2c343 before 47e20d4b3da97ef3881d1e55e43545c22424f3fc |
| Linux / Linux | affected 7.0; unaffected 0 before 7.0; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.