Description
In the Linux kernel, the following vulnerability has been resolved: sparc: fix accurate exception reporting in copy_{from_to}_user for Niagara The referenced commit introduced exception handlers on user-space memory references in copy_from_user and copy_to_user. These handlers return from the respective function and calculate the remaining bytes left to copy using the current register contents. This commit fixes a couple of bad calculations and a broken epilogue in the exception handlers. This will prevent crashes and ensure correct return values of copy_from_user and copy_to_user in the faulting case. The behaviour of memcpy stays unchanged.
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| kernel | 6.13.0 | 6.17.3 |
| unknown | — | — |
References
Similar Threats
- Unknown ALSA-2023:2458
- Unknown ALSA-2023:1703
- Unknown ALSA-2023:1566
- Unknown ALSA-2023:1470
- Unknown ALSA-2023:0951
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