https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 28 Sep 2026 09:08:59 +0000 https://vulnerability.circl.lu/vuln/cve-2026-31741 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>counter: rz-mtu3-cnt: prevent counter from being toggled multiple times</p> <p>Runtime PM counter is incremented / decremented each time the sysfs enable file is written to.</p> <p>If user writes 0 to the sysfs enable file multiple times, runtime PM usage count underflows, generating the following message.</p> <p>rz-mtu3-counter rz-mtu3-counter.0: Runtime PM usage count underflow!</p> <p>At the same time, hardware registers end up being accessed with clocks off in rz_mtu3_terminate_counter() to disable an already disabled channel.</p> <p>If user writes 1 to the sysfs enable file multiple times, runtime PM usage count will be incremented each time, requiring the same number of 0 writes to get it back to 0.</p> <p>If user writes 0 to the sysfs enable file while PWM is in progress, PWM is stopped without counter being the owner of the underlying MTU3 channel.</p> <p>Check against the cached count_is_enabled value and exit if the user is trying to set the same enable value.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>counter: rz-mtu3-cnt: prevent counter from being toggled multiple times</p> <p>Runtime PM counter is incremented / decremented each time the sysfs enable file is written to.</p> <p>If user writes 0 to the sysfs enable file multiple times, runtime PM usage count underflows, generating the following message.</p> <p>rz-mtu3-counter rz-mtu3-counter.0: Runtime PM usage count underflow!</p> <p>At the same time, hardware registers end up being accessed with clocks off in rz_mtu3_terminate_counter() to disable an already disabled channel.</p> <p>If user writes 1 to the sysfs enable file multiple times, runtime PM usage count will be incremented each time, requiring the same number of 0 writes to get it back to 0.</p> <p>If user writes 0 to the sysfs enable file while PWM is in progress, PWM is stopped without counter being the owner of the underlying MTU3 channel.</p> <p>Check against the cached count_is_enabled value and exit if the user is trying to set the same enable value.</p> https://vulnerability.circl.lu/vuln/cve-2026-31741