CVE-2026-93061
Description
In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Avoid stack over-read in debug output helpers host1x_debug_output() and host1x_debug_cont() used vsnprintf(), which returns the length the formatted string would have reached with an unbounded buffer. That return value was passed straight to o->fn as the number of bytes to emit. This could cause a read past end of the output buffer if a call to host1x_debug_* produced a string longer than 256 bytes. This only affected the debugfs files as the printk debug sink ignores the number of bytes. In practice, this is very unlikely to occur. Fix by switching to vscnprintf(), which returns the number of bytes actually written.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/41517c46002afd717f0f2d0975c740dd610f87fe
- https://git.kernel.org/stable/c/4f9f0afdbdf513a49065207ff6b7e1d15051175a
- https://git.kernel.org/stable/c/819dd96a6571f2b12496b080e5187ba3fa897232
- https://git.kernel.org/stable/c/9ad7a6ccc7b839247663d57d3dbb4481dec492de
- https://git.kernel.org/stable/c/b00290d1dc23a5ef9a0d3103aad1fe2274e86569
- https://git.kernel.org/stable/c/bc17ac285fb708f22a8fa2c0ed32eceb1d37e6d6
- https://git.kernel.org/stable/c/d7a560dc912756fd8b39b28b10818d931e863d2d
- https://git.kernel.org/stable/c/ebab3a25a0403bcbc0c40ef77d69d23270e45547
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.