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| author |   Thomas Zimmermann <tzimmermann@suse.de> | 2020-04-17 08:12:22 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-04-17 08:12:22 +0200 |
| commit | 08d99b2c23dfa84ca5b5e5c194062a0550888b71 (patch) | |
| tree | f4cf81ba52b375bbafd3b7ee2603b3a4cae7fe30 /arch/arm/include/asm/futex.h | |
| parent | drm: Don't free a struct never allocated by drm_gem_fb_init() (diff) | |
| parent | Linux 5.7-rc1 (diff) | |
| download | wireguard-linux-08d99b2c23dfa84ca5b5e5c194062a0550888b71.tar.xz wireguard-linux-08d99b2c23dfa84ca5b5e5c194062a0550888b71.zip | |
Merge drm/drm-next into drm-misc-next
Backmerging required to pull topic/phy-compliance.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'arch/arm/include/asm/futex.h')
| -rw-r--r-- | arch/arm/include/asm/futex.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h index 83c391b597d4..e133da303a98 100644 --- a/arch/arm/include/asm/futex.h +++ b/arch/arm/include/asm/futex.h @@ -134,10 +134,12 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { int oldval = 0, ret, tmp; + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; + #ifndef CONFIG_SMP preempt_disable(); #endif - pagefault_disable(); switch (op) { case FUTEX_OP_SET: @@ -159,7 +161,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); #ifndef CONFIG_SMP preempt_enable(); #endif |