Oleg Nesterov 992fb6e170 ptrace: introduce PTRACE_O_EXITKILL ... Ptrace jailers want to be sure that the tracee can never escape from the control. However if the tracer dies unexpectedly the tracee continues to run in potentially unsafe mode. Add the new ptrace option PTRACE_O_EXITKILL. If the tracer exits it sends SIGKILL to every tracee which has this bit set. Note that the new option is not equal to the last-option << 1. Because currently all options have an event, and the new one starts the eventless group. It uses the random 20 bit, so we have the room for 12 more events, but we can also add the new eventless options below this one. Suggested by Amnon Shiloh. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Tested-by: Amnon Shiloh <u3557@miso.sublimeip.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Serge Hallyn <serge.hallyn@canonical.com> Cc: Chris Evans <scarybeasts@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-12-17 17:15:22 -08:00
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asm-generic	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-12-12 18:07:07 -08:00
drm	Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next	2012-12-16 05:49:46 +00:00
linux	ptrace: introduce PTRACE_O_EXITKILL	2012-12-17 17:15:22 -08:00
mtd
rdma	UAPI: (Scripted) Disintegrate include/rdma	2012-11-22 00:43:10 -08:00
scsi
sound	ALSA: Extend chmap definitions for UAC2	2012-11-26 16:18:59 +01:00
video
xen
Kbuild