Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 48a8f78c50bd6f7f08fd40daa62252fd043f2f18 before 7285f004293e7dc043c55369c0dbe8350b28cc45; affected 48a8f78c50bd6f7f08fd40daa62252fd043f2f18 before b594c23f584ab032a5eae809eee81b809dd27330; affected 48a8f78c50bd6f7f08fd40daa62252fd043f2f18 before 5cadc66b534fe8140441916200a20c7efb06a388; affected 48a8f78c50bd6f7f08fd40daa62252fd043f2f18 before 2a3a29e90021806ea00527f6458cfd2edb58b42a; affected 48a8f78c50bd6f7f08fd40daa62252fd043f2f18 before 369e4635d04801f394d5bd42556f21029e95ff93 |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.160 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/7285f004293e7dc043c55369c0dbe8350b28cc45
- https://git.kernel.org/stable/c/b594c23f584ab032a5eae809eee81b809dd27330
- https://git.kernel.org/stable/c/5cadc66b534fe8140441916200a20c7efb06a388
- https://git.kernel.org/stable/c/2a3a29e90021806ea00527f6458cfd2edb58b42a
- https://git.kernel.org/stable/c/369e4635d04801f394d5bd42556f21029e95ff93