Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.8, < 4.19.313 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0561b65fbd53d3e788c5b0222d9112ca016fd6a1Patch
- https://git.kernel.org/stable/c/21bfca822cfc1e71796124e93b46e0d9fa584401Patch
- https://git.kernel.org/stable/c/29e94f295bad5be59cf4271a93e22cdcf5536722Patch
- https://git.kernel.org/stable/c/418c5575d56410c6e186ab727bf32ae32447d497Patch
- https://git.kernel.org/stable/c/5095b93021b899f54c9355bebf36d78854c33a22Patch
- https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0ePatch
- https://git.kernel.org/stable/c/b65fb50e04a95eec34a9d1bc138454a98a5578d8Patch
- https://git.kernel.org/stable/c/c448a9fd50f77e8fb9156ff64848aa4295eb3003Patch
- https://git.kernel.org/stable/c/0561b65fbd53d3e788c5b0222d9112ca016fd6a1Patch
- https://git.kernel.org/stable/c/21bfca822cfc1e71796124e93b46e0d9fa584401Patch
- https://git.kernel.org/stable/c/29e94f295bad5be59cf4271a93e22cdcf5536722Patch
- https://git.kernel.org/stable/c/418c5575d56410c6e186ab727bf32ae32447d497Patch
- https://git.kernel.org/stable/c/5095b93021b899f54c9355bebf36d78854c33a22Patch
- https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0ePatch
- https://git.kernel.org/stable/c/b65fb50e04a95eec34a9d1bc138454a98a5578d8Patch
FAQ
What is CVE-2024-35997?
CVE-2024-35997 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 operation...
How severe is CVE-2024-35997?
CVE-2024-35997 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-35997?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.