Oleg Nesterov 54708d2858 proc: actually make proc_fd_permission() thread-friendly ... The commit 96d0df79f2 ("proc: make proc_fd_permission() thread-friendly") fixed the access to /proc/self/fd from sub-threads, but introduced another problem: a sub-thread can't access /proc/<tid>/fd/ or /proc/thread-self/fd if generic_permission() fails. Change proc_fd_permission() to check same_thread_group(pid_task(), current). Fixes: 96d0df79f2 ("proc: make proc_fd_permission() thread-friendly") Reported-by: "Jin, Yihua" <yihua.jin@intel.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-11-06 17:50:42 -08:00
..
array.c	fs/proc/array.c: set overflow flag in case of error	2015-11-06 17:50:42 -08:00
base.c	mm, oom: add comment for why oom_adj exists	2015-11-05 19:34:48 -08:00
cmdline.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
consoles.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
cpuinfo.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
devices.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
fd.c	proc: actually make proc_fd_permission() thread-friendly	2015-11-06 17:50:42 -08:00
fd.h	proc: Move proc_fd() to fs/proc/fd.h	2013-05-01 17:29:39 -04:00
generic.c	proc: change proc_subdir_lock to a rwlock	2015-09-10 13:29:01 -07:00
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2015-07-03 15:20:57 -07:00
internal.h	proc: Allow creating permanently empty directories that serve as mount points	2015-07-01 10:36:41 -05:00
interrupts.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
Kconfig	fs, proc: add help for CONFIG_PROC_CHILDREN	2015-07-17 16:39:52 -07:00
kcore.c	x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86	2015-07-18 03:42:51 +02:00
kmsg.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
loadavg.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
Makefile	proc: Implement /proc/thread-self to point at the directory of the current thread	2014-08-04 10:07:11 -07:00
meminfo.c	mm: get rid of 'vmalloc_info' from /proc/meminfo	2015-11-01 17:09:15 -08:00
namespaces.c	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
nommu.c	vfs: add seq_file_path() helper	2015-06-23 18:01:07 -04:00
page.c	proc: add cond_resched to /proc/kpage* read/write loop	2015-09-10 13:29:01 -07:00
proc_net.c	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
proc_sysctl.c	sysctl: Allow creating permanently empty directories that serve as mountpoints.	2015-07-01 10:36:39 -05:00
proc_tty.c	proc: remove proc_tty_ldisc variable	2014-08-08 15:57:22 -07:00
root.c	vfs: Commit to never having exectuables on proc and sysfs.	2015-07-10 10:39:25 -05:00
self.c	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
softirqs.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
stat.c	genirq: Prevent proc race against freeing of irq descriptors	2014-12-13 13:33:07 +01:00
task_mmu.c	mm: clear_soft_dirty_pmd() requires THP	2015-11-05 19:34:48 -08:00
task_nommu.c	vfs: add seq_file_path() helper	2015-06-23 18:01:07 -04:00
thread_self.c	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
uptime.c	cputime: Default implementation of nsecs -> cputime conversion	2014-03-13 15:56:43 +01:00
version.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
vmcore.c	vmcore: fix PT_NOTE n_namesz, n_descsz overflow issue	2015-02-17 14:34:52 -08:00