BMC/Intel-BMC/linux.git/arch/mn10300/kernel/signal.c, branch dev

mn10300: Remove signal translation and exec_domain

2015-04-12T18:58:25+00:00

As execution domain support is gone we can remove signal translation from the signal code and remove exec_domain from thread_info. Signed-off-by: Richard Weinberger

all arches, signal: move restart_block to struct task_struct

2015-02-13T02:54:12+00:00

If an attacker can cause a controlled kernel stack overflow, overwriting the restart block is a very juicy exploit target. This is because the restart_block is held in the same memory allocation as the kernel stack. Moving the restart block to struct task_struct prevents this exploit by making the restart_block harder to locate. Note that there are other fields in thread_info that are also easy targets, at least on some architectures. It's also a decent simplification, since the restart code is more or less identical on all architectures. [james.hogan@imgtec.com: metag: align thread_info::supervisor_stack] Signed-off-by: Andy Lutomirski Cc: Thomas Gleixner Cc: Al Viro Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Kees Cook Cc: David Miller Acked-by: Richard Weinberger Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Vineet Gupta Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Haavard Skinnemoen Cc: Hans-Christian Egtvedt Cc: Steven Miao Cc: Mark Salter Cc: Aurelien Jacquiot Cc: Mikael Starvik Cc: Jesper Nilsson Cc: David Howells Cc: Richard Kuo Cc: "Luck, Tony" Cc: Geert Uytterhoeven Cc: Michal Simek Cc: Ralf Baechle Cc: Jonas Bonn Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Acked-by: Michael Ellerman (powerpc) Tested-by: Michael Ellerman (powerpc) Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Chen Liqin Cc: Lennox Wu Cc: Chris Metcalf Cc: Guan Xuetao Cc: Chris Zankel Cc: Max Filippov Cc: Oleg Nesterov Cc: Guenter Roeck Signed-off-by: James Hogan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mn10300: Use sigsp()

2014-08-06T11:04:31+00:00

Use sigsp() instead of the open coded variant. Signed-off-by: Richard Weinberger

mn10300: Use get_signal() signal_setup_done()

2014-08-06T11:03:08+00:00

Use the more generic functions get_signal() signal_setup_done() for signal delivery. Signed-off-by: Richard Weinberger

mn10300: switch to generic old sigaction()

2013-02-03T23:16:04+00:00

Signed-off-by: Al Viro

mn10300: switch to generic old sigsuspend

2013-02-03T23:16:04+00:00

Signed-off-by: Al Viro

mn10300: switch to generic sigaltstack

2013-02-03T23:16:03+00:00

Signed-off-by: Al Viro

mn10300: don't bother with SIGTRAP in setup_frame()

2012-10-01T13:58:16+00:00

... just tell signal_delivered() to do it. Signed-off-by: Al Viro

mn10300: get rid of calling do_notify_resume() when returning to kernel mode

2012-10-01T13:58:09+00:00

Signed-off-by: Al Viro

mn10300: fix "pull clearing RESTORE_SIGMASK into block_sigmask()" fallout

2012-07-17T23:21:29+00:00

Commit a610d6e672d6 ("pull clearing RESTORE_SIGMASK into block_sigmask()") caused: arch/mn10300/kernel/signal.c: In function 'handle_signal': arch/mn10300/kernel/signal.c:462:3: warning: 'return' with no value, in function returning non-void [-Wreturn-type] Add the missing return values, and restore the indentation while we're at it. Signed-off-by: Geert Uytterhoeven Cc: Al Viro Cc: David Howells Cc: Koichi Yasutake Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds