CVE-2026-68285

LoongArch: BPF: Fix memory leak in bpf_jit_free()

N/A
Published: August 10, 2026 at 12:02 PM UTC
Updated: August 17, 2026 at 05:18 AM 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: LoongArch: 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. So fix this by adding the missing kvfree(jit_data->ctx.offset) in bpf_jit_free().

Affected

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

7.0 ≤ v < 7.1.67.0 ≤ v < 7.24ab17e762b34c847478f694932c4cd4b1ac2c3437.0
Vendor states this is fixed in 47e20d4b3da97ef3881d1e55e43545c22424f3fc (fixed)
Vendor states this is fixed in f1557e0a64736b63aed24e285108a7bc3b7de294 (fixed)
Vendor states this is fixed in 7.0 (unaffected)
Vendor states this is fixed in 7.1.6 (unaffected)
Vendor states this is fixed in 7.2 (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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