CVE-2026-92519

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux48a8f78c50bd6f7f08fd40daa62252fd043f2f18 < b594c23f584ab032a5eae809eee81b809dd27330affected
LinuxLinux48a8f78c50bd6f7f08fd40daa62252fd043f2f18 < 5cadc66b534fe8140441916200a20c7efb06a388affected
LinuxLinux48a8f78c50bd6f7f08fd40daa62252fd043f2f18 < 2a3a29e90021806ea00527f6458cfd2edb58b42aaffected
LinuxLinux48a8f78c50bd6f7f08fd40daa62252fd043f2f18 < 369e4635d04801f394d5bd42556f21029e95ff93affected
LinuxLinux6.6affected
LinuxLinux0 < 6.6unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References