[CVE-2009-0029] System call wrappers part 09 (a5f8fa9e) · Commits · 戴 / test

fs/sync.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -36,7 +36,7 @@ static void do_sync(unsigned long wait)
		laptop_sync_completion();
		}

		asmlinkage long sys_sync(void)
		SYSCALL_DEFINE0(sync)
		{
		do_sync(1);
		return 0;
		@@ -144,12 +144,12 @@ static int do_fsync(unsigned int fd, int datasync)
		return ret;
		}

		asmlinkage long sys_fsync(unsigned int fd)
		SYSCALL_DEFINE1(fsync, unsigned int, fd)
		{
		return do_fsync(fd, 0);
		}

		asmlinkage long sys_fdatasync(unsigned int fd)
		SYSCALL_DEFINE1(fdatasync, unsigned int, fd)
		{
		return do_fsync(fd, 1);
		}

kernel/signal.c

+8 −13

Original line number	Diff line number	Diff line
		@@ -2279,7 +2279,7 @@ static int do_tkill(pid_t tgid, pid_t pid, int sig)
		* exists but it's not belonging to the target process anymore. This
		* method solves the problem of threads exiting and PIDs getting reused.
		*/
		asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig)
		SYSCALL_DEFINE3(tgkill, pid_t, tgid, pid_t, pid, int, sig)
		{
		/* This is only valid for single tasks */
		if (pid <= 0 \|\| tgid <= 0)
		@@ -2291,8 +2291,7 @@ asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig)
		/*
		* Send a signal to only one task, even if it's a CLONE_THREAD task.
		*/
		asmlinkage long
		sys_tkill(pid_t pid, int sig)
		SYSCALL_DEFINE2(tkill, pid_t, pid, int, sig)
		{
		/* This is only valid for single tasks */
		if (pid <= 0)
		@@ -2301,8 +2300,8 @@ sys_tkill(pid_t pid, int sig)
		return do_tkill(0, pid, sig);
		}

		asmlinkage long
		sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo)
		SYSCALL_DEFINE3(rt_sigqueueinfo, pid_t, pid, int, sig,
		siginfo_t __user *, uinfo)
		{
		siginfo_t info;

		@@ -2526,15 +2525,13 @@ out:
		/*
		* For backwards compatibility. Functionality superseded by sigprocmask.
		*/
		asmlinkage long
		sys_sgetmask(void)
		SYSCALL_DEFINE0(sgetmask)
		{
		/* SMP safe */
		return current->blocked.sig[0];
		}

		asmlinkage long
		sys_ssetmask(int newmask)
		SYSCALL_DEFINE1(ssetmask, int, newmask)
		{
		int old;

		@@ -2554,8 +2551,7 @@ sys_ssetmask(int newmask)
		/*
		* For backwards compatibility. Functionality superseded by sigaction.
		*/
		asmlinkage long
		sys_signal(int sig, __sighandler_t handler)
		SYSCALL_DEFINE2(signal, int, sig, __sighandler_t, handler)
		{
		struct k_sigaction new_sa, old_sa;
		int ret;
		@@ -2572,8 +2568,7 @@ sys_signal(int sig, __sighandler_t handler)

		#ifdef __ARCH_WANT_SYS_PAUSE

		asmlinkage long
		sys_pause(void)
		SYSCALL_DEFINE0(pause)
		{
		current->state = TASK_INTERRUPTIBLE;
		schedule();

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