1. 31 7月, 2017 1 次提交
  2. 30 12月, 2016 1 次提交
  3. 23 5月, 2016 1 次提交
  4. 13 4月, 2015 1 次提交
  5. 13 2月, 2015 1 次提交
    • A
      all arches, signal: move restart_block to struct task_struct · f56141e3
      Andy Lutomirski 提交于
      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: NAndy Lutomirski <luto@amacapital.net>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Al Viro <viro@zeniv.linux.org.uk>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Kees Cook <keescook@chromium.org>
      Cc: David Miller <davem@davemloft.net>
      Acked-by: NRichard Weinberger <richard@nod.at>
      Cc: Richard Henderson <rth@twiddle.net>
      Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
      Cc: Matt Turner <mattst88@gmail.com>
      Cc: Vineet Gupta <vgupta@synopsys.com>
      Cc: Russell King <rmk@arm.linux.org.uk>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
      Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
      Cc: Steven Miao <realmz6@gmail.com>
      Cc: Mark Salter <msalter@redhat.com>
      Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
      Cc: Mikael Starvik <starvik@axis.com>
      Cc: Jesper Nilsson <jesper.nilsson@axis.com>
      Cc: David Howells <dhowells@redhat.com>
      Cc: Richard Kuo <rkuo@codeaurora.org>
      Cc: "Luck, Tony" <tony.luck@intel.com>
      Cc: Geert Uytterhoeven <geert@linux-m68k.org>
      Cc: Michal Simek <monstr@monstr.eu>
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Cc: Jonas Bonn <jonas@southpole.se>
      Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
      Cc: Helge Deller <deller@gmx.de>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
      Tested-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: Chen Liqin <liqin.linux@gmail.com>
      Cc: Lennox Wu <lennox.wu@gmail.com>
      Cc: Chris Metcalf <cmetcalf@ezchip.com>
      Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
      Cc: Chris Zankel <chris@zankel.net>
      Cc: Max Filippov <jcmvbkbc@gmail.com>
      Cc: Oleg Nesterov <oleg@redhat.com>
      Cc: Guenter Roeck <linux@roeck-us.net>
      Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      f56141e3
  6. 27 8月, 2014 1 次提交
  7. 03 2月, 2014 1 次提交
  8. 14 11月, 2013 1 次提交
  9. 08 11月, 2013 1 次提交
  10. 08 5月, 2013 1 次提交
    • H
      parisc: add kernel stack overflow check · 9372450c
      Helge Deller 提交于
      Add the CONFIG_DEBUG_STACKOVERFLOW config option to enable checks to
      detect kernel stack overflows.
      
      Stack overflows can not be detected reliable since we do not want to
      introduce too much overhead.
      
      Instead, during irq processing in do_cpu_irq_mask() we check kernel
      stack usage of the interrupted kernel process. Kernel threads can be
      easily detected by checking the value of space register 7 (sr7) which
      is zero when running inside the kernel.
      
      Since THREAD_SIZE is 16k and PAGE_SIZE is 4k, reduce the alignment of
      the init thread to the lower value (PAGE_SIZE) in the kernel
      vmlinux.ld.S linker script.
      Signed-off-by: NHelge Deller <deller@gmx.de>
      9372450c
  11. 08 4月, 2013 1 次提交
  12. 01 10月, 2012 3 次提交
  13. 02 6月, 2012 1 次提交
  14. 29 3月, 2012 1 次提交
  15. 22 11月, 2011 1 次提交
  16. 14 5月, 2010 1 次提交
  17. 28 9月, 2009 2 次提交
  18. 02 9月, 2009 1 次提交
  19. 11 7月, 2009 1 次提交
  20. 11 10月, 2008 1 次提交
  21. 26 7月, 2008 1 次提交
  22. 01 8月, 2007 1 次提交
  23. 17 2月, 2007 1 次提交
  24. 31 3月, 2006 1 次提交
  25. 13 1月, 2006 1 次提交
  26. 24 6月, 2005 1 次提交
    • J
      [PATCH] streamline preempt_count type across archs · dcd497f9
      Jesper Juhl 提交于
      The preempt_count member of struct thread_info is currently either defined
      as int, unsigned int or __s32 depending on arch.  This patch makes the type
      of preempt_count an int on all archs.
      
      Having preempt_count be an unsigned type prevents the catching of
      preempt_count < 0 bugs, and using int on some archs and __s32 on others is
      not exactely "neat" - much nicer when it's just int all over.
      
      A previous version of this patch was already ACK'ed by Robert Love, and the
      only change in this version of the patch compared to the one he ACK'ed is
      that this one also makes sure the preempt_count member is consistently
      commented.
      Signed-off-by: NJesper Juhl <juhl-lkml@dif.dk>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      dcd497f9
  27. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds 提交于
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4