CVE-2026-92519

riscv, bpf: Fix memory leak in bpf_jit_free

N/A
Published: September 17, 2026 at 04:10 PM UTC
Updated: October 21, 2026 at 01:20 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

48a8f78c50bd6f7f08fd40daa62252fd043f2f186.6
Vendor states this is fixed in 2a3a29e90021806ea00527f6458cfd2edb58b42a (fixed)
Vendor states this is fixed in 369e4635d04801f394d5bd42556f21029e95ff93 (fixed)
Vendor states this is fixed in 5cadc66b534fe8140441916200a20c7efb06a388 (fixed)
Vendor states this is fixed in b594c23f584ab032a5eae809eee81b809dd27330 (fixed)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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