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| author | Mark Brown <broonie@kernel.org> | 2016-06-29 17:28:16 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-06-29 17:28:16 +0100 |
| commit | 10d832d607c621c101922442f4771737296e1241 (patch) | |
| tree | 421229d6bb43c301bbf5eb97b11c5901aae66e08 /arch/sparc/kernel/sigutil_32.c | |
| parent | 1a695a905c18548062509178b98bc91e67510864 (diff) | |
| parent | a370f60a58ec7bad7045803041524ccdc4d79c75 (diff) | |
| download | lwn-10d832d607c621c101922442f4771737296e1241.tar.gz lwn-10d832d607c621c101922442f4771737296e1241.zip | |
Merge tag 'ib-mfd-regulator-arm-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into regulator-rn5t618
Immutable branch between MFD, Regulator and ARM, due for v4.8
Diffstat (limited to 'arch/sparc/kernel/sigutil_32.c')
| -rw-r--r-- | arch/sparc/kernel/sigutil_32.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/sparc/kernel/sigutil_32.c b/arch/sparc/kernel/sigutil_32.c index 0f6eebe71e6c..e5fe8cef9a69 100644 --- a/arch/sparc/kernel/sigutil_32.c +++ b/arch/sparc/kernel/sigutil_32.c @@ -48,6 +48,10 @@ int save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) int restore_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) { int err; + + if (((unsigned long) fpu) & 3) + return -EFAULT; + #ifdef CONFIG_SMP if (test_tsk_thread_flag(current, TIF_USEDFPU)) regs->psr &= ~PSR_EF; @@ -97,7 +101,10 @@ int restore_rwin_state(__siginfo_rwin_t __user *rp) struct thread_info *t = current_thread_info(); int i, wsaved, err; - __get_user(wsaved, &rp->wsaved); + if (((unsigned long) rp) & 3) + return -EFAULT; + + get_user(wsaved, &rp->wsaved); if (wsaved > NSWINS) return -EFAULT; |