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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
4a200c3b9a40242652b5734630bdd0bcf3aca75f to < 21bfca822cfc1e71796124e93b46e0d9fa584401affected4a200c3b9a40242652b5734630bdd0bcf3aca75f to < c448a9fd50f77e8fb9156ff64848aa4295eb3003affected4a200c3b9a40242652b5734630bdd0bcf3aca75f to < 5095b93021b899f54c9355bebf36d78854c33a22affected4a200c3b9a40242652b5734630bdd0bcf3aca75f to < b65fb50e04a95eec34a9d1bc138454a98a5578d8affected4a200c3b9a40242652b5734630bdd0bcf3aca75f to < 0561b65fbd53d3e788c5b0222d9112ca016fd6a1affected4a200c3b9a40242652b5734630bdd0bcf3aca75f to < 29e94f295bad5be59cf4271a93e22cdcf5536722affected4a200c3b9a40242652b5734630bdd0bcf3aca75f to < 418c5575d56410c6e186ab727bf32ae32447d497affected4a200c3b9a40242652b5734630bdd0bcf3aca75f to < 9c0f59e47a90c54d0153f8ddc0f80d7a36207d0eaffected
Linux Linux
Default version status: affected
3.8affected0 to < 3.8unaffected4.19.313 to ≤ 4.19.*unaffected5.4.275 to ≤ 5.4.*unaffected5.10.216 to ≤ 5.10.*unaffected5.15.158 to ≤ 5.15.*unaffected6.1.90 to ≤ 6.1.*unaffected6.6.30 to ≤ 6.6.*unaffected6.8.9 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/21bfca822cfc1e71796124e93b46e0d9fa584401 ↗
- https://git.kernel.org/stable/c/c448a9fd50f77e8fb9156ff64848aa4295eb3003 ↗
- https://git.kernel.org/stable/c/5095b93021b899f54c9355bebf36d78854c33a22 ↗
- https://git.kernel.org/stable/c/b65fb50e04a95eec34a9d1bc138454a98a5578d8 ↗
- https://git.kernel.org/stable/c/0561b65fbd53d3e788c5b0222d9112ca016fd6a1 ↗
- https://git.kernel.org/stable/c/29e94f295bad5be59cf4271a93e22cdcf5536722 ↗
- https://git.kernel.org/stable/c/418c5575d56410c6e186ab727bf32ae32447d497 ↗
- https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0e ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗