Jens Axboe 13fb0e1ecf proc: don't allow async path resolution of /proc/thread-self components ... commit 0d4370cfe36b7f1719123b621a4ec4d9c7a25f89 upstream. If this is attempted by an io-wq kthread, then return -EOPNOTSUPP as we don't currently support that. Once we can get task_pid_ptr() doing the right thing, then this can go away again. Use PF_IO_WORKER for this to speciically target the io_uring workers. Modify the /proc/self/ check to use PF_IO_WORKER as well. Cc: stable@vger.kernel.org Fixes: 8d4c3e76e3 ("proc: don't allow async path resolution of /proc/self components") Reported-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-04 11:38:42 +01:00
..
array.c
base.c
bootconfig.c
cmdline.c
consoles.c
cpuinfo.c
devices.c	block: move block-related definitions out of fs.h	2020-06-24 09:16:02 -06:00
fd.c
fd.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
generic.c
inode.c
internal.h
interrupts.c
Kconfig
kcore.c
kmsg.c
loadavg.c
Makefile
meminfo.c
namespaces.c
nommu.c
page.c	mm: Add PG_arch_2 page flag	2020-09-04 12:46:06 +01:00
proc_net.c
proc_sysctl.c
proc_tty.c	tty: replace ->proc_fops with ->proc_show	2018-05-16 07:24:30 +02:00
root.c
self.c	proc: don't allow async path resolution of /proc/thread-self components	2021-03-04 11:38:42 +01:00
softirqs.c
stat.c
task_mmu.c
task_nommu.c
thread_self.c	proc: don't allow async path resolution of /proc/thread-self components	2021-03-04 11:38:42 +01:00
uptime.c
util.c
version.c
vmcore.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00