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| author | Andrey Ryabinin | 2015-07-02 11:09:35 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2015-07-06 14:53:14 +0200 |
| commit | 241d2c54c62fa0939fc9a9512b48ac3434e90a89 (patch) | |
| tree | 3860303ff60c73f7acb1bc930b9f66d56995b223 /arch/c6x | |
| parent | x86/kasan: Fix KASAN shadow region page tables (diff) | |
| download | kernel-qcow2-linux-241d2c54c62fa0939fc9a9512b48ac3434e90a89.tar.gz kernel-qcow2-linux-241d2c54c62fa0939fc9a9512b48ac3434e90a89.tar.xz kernel-qcow2-linux-241d2c54c62fa0939fc9a9512b48ac3434e90a89.zip | |
x86/kasan: Flush TLBs after switching CR3
load_cr3() doesn't cause tlb_flush if PGE enabled.
This may cause tons of false positive reports spamming the
kernel to death.
To fix this __flush_tlb_all() should be called explicitly
after CR3 changed.
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Cc: <stable@vger.kernel.org> # 4.0+
Cc: Alexander Popov <alpopov@ptsecurity.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <adech.fo@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1435828178-10975-4-git-send-email-a.ryabinin@samsung.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/c6x')
0 files changed, 0 insertions, 0 deletions