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| author | Mark Brown <broonie@kernel.org> | 2016-02-05 19:28:22 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-02-05 19:28:22 +0000 |
| commit | cd6f5814252060db2d38f57c602db33696c549c0 (patch) | |
| tree | 0bcf23a07f1316cb57f0127e5b1622fea59c3e8e /arch/powerpc/kernel/signal_64.c | |
| parent | d235b7b42ab59e2e616082a0735b3bcc76685c7b (diff) | |
| parent | e14ca734b547e3187713441909897aefdf4e4016 (diff) | |
Merge tag 'v3.10.96' into linux-linaro-lsk-v3.10lsk-v3.10-16.02
This is the 3.10.96 stable release
Diffstat (limited to 'arch/powerpc/kernel/signal_64.c')
| -rw-r--r-- | arch/powerpc/kernel/signal_64.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index 74d9615a6bb6..2419c17538e2 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -416,6 +416,10 @@ static long restore_tm_sigcontexts(struct pt_regs *regs, /* get MSR separately, transfer the LE bit if doing signal return */ err |= __get_user(msr, &sc->gp_regs[PT_MSR]); + /* Don't allow reserved mode. */ + if (MSR_TM_RESV(msr)) + return -EINVAL; + /* pull in MSR TM from user context */ regs->msr = (regs->msr & ~MSR_TS_MASK) | (msr & MSR_TS_MASK); |