https://github.com/torvalds/linux
Revision d52356e7f48e400ca258c6763a232a92fa82ff68 authored by Jan Stancek on 31 March 2015, 16:11:46 UTC, committed by Michael Ellerman on 01 April 2015, 01:05:44 UTC
Space allocated for paca is based off nr_cpu_ids, but pnv_alloc_idle_core_states() iterates paca with cpu_nr_cores()*threads_per_core, which is using NR_CPUS. This causes pnv_alloc_idle_core_states() to write over memory, which is outside of paca array and may later lead to various panics. Fixes: 7cba160ad789 (powernv/cpuidle: Redesign idle states management) Signed-off-by: Jan Stancek <jstancek@redhat.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Tip revision: d52356e7f48e400ca258c6763a232a92fa82ff68 authored by Jan Stancek on 31 March 2015, 16:11:46 UTC
powerpc: fix memory corruption by pnv_alloc_idle_core_states
powerpc: fix memory corruption by pnv_alloc_idle_core_states
Tip revision: d52356e
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 1.2 KB |
| .mailmap | -rw-r--r-- | 4.9 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 94.0 KB |
| Kbuild | -rw-r--r-- | 2.1 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 298.9 KB |
| Makefile | -rw-r--r-- | 53.3 KB |
| README | -rw-r--r-- | 18.3 KB |
| REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
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