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CVE-2026-93061

Unknown

Last modified

CVE-2026-93061 is a vulnerability of currently unknown severity. 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.

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 6236451d83a720072053855fa63d51934024a707, < d7a560dc912756fd8b39b28b10818d931e863d2d; >= 6236451d83a720072053855fa63d51934024a707, < 41517c46002afd717f0f2d0975c740dd610f87fe; >= 6236451d83a720072053855fa63d51934024a707, < ebab3a25a0403bcbc0c40ef77d69d23270e45547; >= 6236451d83a720072053855fa63d51934024a707, < 4f9f0afdbdf513a49065207ff6b7e1d15051175a; >= 6236451d83a720072053855fa63d51934024a707, < 819dd96a6571f2b12496b080e5187ba3fa897232; >= 6236451d83a720072053855fa63d51934024a707, < 9ad7a6ccc7b839247663d57d3dbb4481dec492de; >= 6236451d83a720072053855fa63d51934024a707, < b00290d1dc23a5ef9a0d3103aad1fe2274e86569; >= 6236451d83a720072053855fa63d51934024a707, < bc17ac285fb708f22a8fa2c0ed32eceb1d37e6d6
LinuxLinux3.10

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-93061?
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.
How severe is CVE-2026-93061?
Severity scoring for CVE-2026-93061 is pending analysis.
How do I fix CVE-2026-93061?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST