Description
In the Linux kernel, the following vulnerability has been resolved:
riscv, 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.
Fix this by adding the missing kfree(jit_data->ctx.offset) in bpf_jit_free().
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < 7285f004293e7dc043c55369c0dbe8350b28cc45; >= 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < b594c23f584ab032a5eae809eee81b809dd27330; >= 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < 5cadc66b534fe8140441916200a20c7efb06a388; >= 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < 2a3a29e90021806ea00527f6458cfd2edb58b42a; >= 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < 369e4635d04801f394d5bd42556f21029e95ff93 |
| Linux | Linux | 6.6 |
References
- https://git.kernel.org/stable/c/2a3a29e90021806ea00527f6458cfd2edb58b42a
- https://git.kernel.org/stable/c/369e4635d04801f394d5bd42556f21029e95ff93
- https://git.kernel.org/stable/c/5cadc66b534fe8140441916200a20c7efb06a388
- https://git.kernel.org/stable/c/7285f004293e7dc043c55369c0dbe8350b28cc45
- https://git.kernel.org/stable/c/b594c23f584ab032a5eae809eee81b809dd27330
Timeline
- Published
- Sep 17, 2026
- Last modified
- Oct 21, 2026
- NVD status
- Received