Answer in brief
CVE-2024-35997 records a Unknown severity vulnerability in HID: i2c-hid: remove I2C_HID_READ_PENDING flag to prevent lock-up. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic), linux/linux_kernel (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic), linux/linux_kernel (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4a200c3b9a40242652b5734630bdd0bcf3aca75f <21bfca822cfc1e71796124e93b46e0d9fa584401 || >=4a200c3b9a40242652b5734630bdd0bcf3aca75f <c448a9fd50f77e8fb9156ff64848aa4295eb3003 || >=4a200c3b9a40242652b5734630bdd0bcf3aca75f <5095b93021b899f54c9355bebf36d78854c33a22 || >=4a200c3b9a40242652b5734630bdd0bcf3aca75f <b65fb50e04a95eec34a9d1bc138454a98a5578d8 || >=4a200c3b9a40242652b5734630bdd0bcf3aca75f <0561b65fbd53d3e788c5b0222d9112ca016fd6a1 || >=4a200c3b9a40242652b5734630bdd0bcf3aca75f <29e94f295bad5be59cf4271a93e22cdcf5536722 || >=4a200c3b9a40242652b5734630bdd0bcf3aca75f <418c5575d56410c6e186ab727bf32ae32447d497 || >=4a200c3b9a40242652b5734630bdd0bcf3aca75f <9c0f59e47a90c54d0153f8ddc0f80d7a36207d0e | 21bfca822cfc1e71796124e93b46e0d9fa584401, c448a9fd50f77e8fb9156ff64848aa4295eb3003, 5095b93021b899f54c9355bebf36d78854c33a22, b65fb50e04a95eec34a9d1bc138454a98a5578d8, 0561b65fbd53d3e788c5b0222d9112ca016fd6a1, 29e94f295bad5be59cf4271a93e22cdcf5536722, 418c5575d56410c6e186ab727bf32ae32447d497, 9c0f59e47a90c54d0153f8ddc0f80d7a36207d0e |
| Linux/Linuxgeneric | 3.8 | Not reported |
| linux/linux_kernelgeneric | >=4a200c3b9a40 <29e94f295bad | 29e94f295bad |
| linux/linux_kernelgeneric | >=4a200c3b9a40 <21bfca822cfc | 21bfca822cfc |
| linux/linux_kernelgeneric | >=4a200c3b9a40 <c448a9fd50f7 | c448a9fd50f7 |
| linux/linux_kernelgeneric | >=4a200c3b9a40 <b65fb50e04a9 | b65fb50e04a9 |
| linux/linux_kernelgeneric | >=4a200c3b9a40 <5095b93021b8 | 5095b93021b8 |
| linux/linux_kernelgeneric | >=4a200c3b9a40 <418c5575d564 | 418c5575d564 |
| linux/linux_kernelgeneric | >=4a200c3b9a40 <=9c0f59e47a90 | Not reported |
| linux/linux_kernelgeneric | 3.8 | Not reported |
| linux/linux_kernelgeneric | >=0 <0561b65fbd53 | 0561b65fbd53 |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <V1.1.1 | V1.1.1 |
Published upstream
May 20, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.