Buffer Over-read in Linux kernel - CVE-2026-93061
Published: September 18, 2026
Vulnerability identifier: #VU150966
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93061
CWE-ID: CWE-126
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in host1x_debug_output() and host1x_debug_cont() when generating debug output longer than 256 bytes. A local user can access affected debugfs output to disclose sensitive information.
Only debugfs files are affected; the printk debug sink ignores the supplied byte count.
Affected software
Linux kernel
How to mitigate CVE-2026-93061
Install security update from vendor's repository.
External 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