CVE - CVE-2024-35997

CVE-ID
CVE-2024-35997	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: HID: i2c-hid: remove I2C_HID_READ_PENDING flag to prevent lock-up 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. 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. 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. Delete this unnecessary flag.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/0561b65fbd53d3e788c5b0222d9112ca016fd6a1 URL:https://git.kernel.org/stable/c/0561b65fbd53d3e788c5b0222d9112ca016fd6a1 MISC:https://git.kernel.org/stable/c/21bfca822cfc1e71796124e93b46e0d9fa584401 URL:https://git.kernel.org/stable/c/21bfca822cfc1e71796124e93b46e0d9fa584401 MISC:https://git.kernel.org/stable/c/29e94f295bad5be59cf4271a93e22cdcf5536722 URL:https://git.kernel.org/stable/c/29e94f295bad5be59cf4271a93e22cdcf5536722 MISC:https://git.kernel.org/stable/c/418c5575d56410c6e186ab727bf32ae32447d497 URL:https://git.kernel.org/stable/c/418c5575d56410c6e186ab727bf32ae32447d497 MISC:https://git.kernel.org/stable/c/5095b93021b899f54c9355bebf36d78854c33a22 URL:https://git.kernel.org/stable/c/5095b93021b899f54c9355bebf36d78854c33a22 MISC:https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0e URL:https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0e MISC:https://git.kernel.org/stable/c/b65fb50e04a95eec34a9d1bc138454a98a5578d8 URL:https://git.kernel.org/stable/c/b65fb50e04a95eec34a9d1bc138454a98a5578d8 MISC:https://git.kernel.org/stable/c/c448a9fd50f77e8fb9156ff64848aa4295eb3003 URL:https://git.kernel.org/stable/c/c448a9fd50f77e8fb9156ff64848aa4295eb3003
Assigning CNA
kernel.org
Date Record Created
20240517	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240517)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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