Michael Neuling d2b9d2a5ad powerpc/tm: Block signal return setting invalid MSR state ... Currently we allow both the MSR T and S bits to be set by userspace on a signal return. Unfortunately this is a reserved configuration and will cause a TM Bad Thing exception if attempted (via rfid). This patch checks for this case in both the 32 and 64 bit signals code. If both T and S are set, we mark the context as invalid. Found using a syscall fuzzer. Fixes: 2b0a576d15 ("powerpc: Add new transactional memory state to the signal context") Cc: stable@vger.kernel.org # v3.9+ Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2015-11-23 20:06:31 +11:00
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asm	powerpc/tm: Block signal return setting invalid MSR state	2015-11-23 20:06:31 +11:00
uapi/asm	powerpc: Wire up sys_mlock2()	2015-11-16 17:05:53 +11:00