summaryrefslogtreecommitdiffstats
path: root/arch/x86/include/asm/uaccess.h
diff options
context:
space:
mode:
authorAndy Lutomirski <luto@kernel.org>2016-10-31 16:11:43 +0100
committerIngo Molnar <mingo@kernel.org>2016-11-01 07:39:17 +0100
commit405c0759712f57b680f66aee9c55cd06ad1cbdef (patch)
tree3a93cb428043131fd231b348dbe469be9dfadc30 /arch/x86/include/asm/uaccess.h
parentMerge tag 'spi-fix-v4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git... (diff)
downloadlinux-405c0759712f57b680f66aee9c55cd06ad1cbdef.tar.xz
linux-405c0759712f57b680f66aee9c55cd06ad1cbdef.zip
fork: Add task stack refcounting sanity check and prevent premature task stack freeing
If something goes wrong with task stack refcounting and a stack refcount hits zero too early, warn and leak it rather than potentially freeing it early (and silently). Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/f29119c783a9680a4b4656e751b6123917ace94b.1477926663.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/uaccess.h')
0 files changed, 0 insertions, 0 deletions