https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 01 Oct 2026 20:27:52 +0000 https://vulnerability.circl.lu/vuln/cve-2024-35997 <p><strong>Affected:</strong> Linux, linux_kernel, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>HID: i2c-hid: remove I2C_HID_READ_PENDING flag to prevent lock-up</p> <p>The flag I2C_HID_READ_PENDING is used to serialize I2C operations. However, this is not necessary, because I2C core already has its own locking for that.</p> <p>More importantly, this flag can cause a lock-up: if the flag is set in i2c_hid_xfer() and an interrupt happens, the interrupt handler (i2c_hid_irq) will check this flag and return immediately without doing anything, then the interrupt handler will be invoked again in an infinite loop.</p> <p>Since interrupt handler is an RT task, it takes over the CPU and the flag-clearing task never gets scheduled, thus we have a lock-up.</p> <p>Delete this unnecessary flag.</p> <p><strong>Affected:</strong> Linux, linux_kernel, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>HID: i2c-hid: remove I2C_HID_READ_PENDING flag to prevent lock-up</p> <p>The flag I2C_HID_READ_PENDING is used to serialize I2C operations. However, this is not necessary, because I2C core already has its own locking for that.</p> <p>More importantly, this flag can cause a lock-up: if the flag is set in i2c_hid_xfer() and an interrupt happens, the interrupt handler (i2c_hid_irq) will check this flag and return immediately without doing anything, then the interrupt handler will be invoked again in an infinite loop.</p> <p>Since interrupt handler is an RT task, it takes over the CPU and the flag-clearing task never gets scheduled, thus we have a lock-up.</p> <p>Delete this unnecessary flag.</p> https://vulnerability.circl.lu/vuln/cve-2024-35997