Johannes Berg 5b5d760280 um: mm: check more comprehensively for stub changes ... commit 47da29763ec9a153b9b685bff9db659e4e09e494 upstream. If userspace tries to change the stub, we need to kill it, because otherwise it can escape the virtual machine. In a few cases the stub checks weren't good, e.g. if userspace just tries to mmap(0x100000 - 0x1000, 0x3000, ...) it could succeed to get a new private/anonymous mapping replacing the stubs. Fix this by checking everywhere, and checking for _overlap_, not just direct changes. Cc: stable@vger.kernel.org Fixes: 3963333fe6 ("uml: cover stubs with a VMA") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-04 10:26:50 +01:00
..
skas	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
Makefile	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
asm-offsets.c	um: get rid of pointless include "..." where include <...> will do	2012-10-09 22:28:45 +02:00
config.c.in	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
dyn.lds.S	Revert "um: Enable CONFIG_CONSTRUCTORS"	2020-02-01 09:34:53 +00:00
early_printk.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
exec.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
exitcode.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
gmon_syms.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
gprof_syms.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
initrd.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
irq.c	um: irq: Fix LAST_IRQ usage in init_IRQ()	2019-09-16 08:38:58 +02:00
kmsg_dump.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ksyms.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
maccess.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
mem.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
physmem.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
process.c	um: Implement copy_thread_tls	2020-01-14 20:08:35 +01:00
ptrace.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
reboot.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
sigio.c	um: change sigio_spinlock to a mutex	2020-11-05 11:43:14 +01:00
signal.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
stacktrace.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
syscall.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
sysrq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
time.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
tlb.c	um: mm: check more comprehensively for stub changes	2021-03-04 10:26:50 +01:00
trap.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
um_arch.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
umid.c	um: Add SPDX headers to files in arch/um/kernel/	2019-09-15 21:37:17 +02:00
uml.lds.S	um: Place (soft)irq text with macros	2019-09-15 21:37:12 +02:00
vmlinux.lds.S	arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0	2009-09-20 12:28:22 +02:00