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CVE-2024-35997 Detail


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 4.0 Severity and Metrics:

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

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Hyperlink Resource
https://git.kernel.org/stable/c/0561b65fbd53d3e788c5b0222d9112ca016fd6a1 Patch 
https://git.kernel.org/stable/c/21bfca822cfc1e71796124e93b46e0d9fa584401 Patch 
https://git.kernel.org/stable/c/29e94f295bad5be59cf4271a93e22cdcf5536722 Patch 
https://git.kernel.org/stable/c/418c5575d56410c6e186ab727bf32ae32447d497 Patch 
https://git.kernel.org/stable/c/5095b93021b899f54c9355bebf36d78854c33a22 Patch 
https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0e Patch 
https://git.kernel.org/stable/c/b65fb50e04a95eec34a9d1bc138454a98a5578d8 Patch 
https://git.kernel.org/stable/c/c448a9fd50f77e8fb9156ff64848aa4295eb3003 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-667 Improper Locking cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

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