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().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
48a8f78c50bd6f7f08fd40daa62252fd043f2f18 to < 7285f004293e7dc043c55369c0dbe8350b28cc45affected48a8f78c50bd6f7f08fd40daa62252fd043f2f18 to < b594c23f584ab032a5eae809eee81b809dd27330affected48a8f78c50bd6f7f08fd40daa62252fd043f2f18 to < 5cadc66b534fe8140441916200a20c7efb06a388affected48a8f78c50bd6f7f08fd40daa62252fd043f2f18 to < 2a3a29e90021806ea00527f6458cfd2edb58b42aaffected48a8f78c50bd6f7f08fd40daa62252fd043f2f18 to < 369e4635d04801f394d5bd42556f21029e95ff93affected
Linux Linux
Default version status: affected
6.6affected0 to < 6.6unaffected6.6.160 to ≤ 6.6.*unaffected6.12.110 to ≤ 6.12.*unaffected6.18.52 to ≤ 6.18.*unaffected7.2.6 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
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 ↗