High · published March 6, 2024
In the Linux kernel, the following vulnerability has been resolved:
powerpc/lib: Validate size for vector operations
Some of the fp/vmx code in sstep.c assume a certain maximum size for the
instructions being emulated. The size of those operations however is
determined separately in analyse_instr().
Add a check to validate the assumption on the maximum size of the
operations, so as to prevent any unintended kernel stack corruption.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | < 4.19.307 | 4.19.307 |
| linux/linux_kernel | ≥ 4.20, < 5.4.269 | 5.4.269 |
| linux/linux_kernel | ≥ 5.5, < 5.10.210 | 5.10.210 |
| linux/linux_kernel | ≥ 5.11, < 5.15.149 | 5.15.149 |
| linux/linux_kernel | ≥ 5.16, < 6.1.77 | 6.1.77 |
| linux/linux_kernel | ≥ 6.2, < 6.6.16 | 6.6.16 |
| linux/linux_kernel | ≥ 6.7, < 6.7.4 | 6.7.4 |