linux/arch/um/kernel
Christoph Hellwig 98a23609b1 maccess: always use strict semantics for probe_kernel_read
Except for historical confusion in the kprobes/uprobes and bpf tracers,
which has been fixed now, there is no good reason to ever allow user
memory accesses from probe_kernel_read.  Switch probe_kernel_read to only
read from kernel memory.

[akpm@linux-foundation.org: update it for "mm, dump_page(): do not crash with invalid mapping pointer"]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20200521152301.2587579-17-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-09 09:39:15 -07:00
..
skas mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
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" 2020-01-19 22:42:06 +01:00
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 proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
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 um: Don't use console_drivers directly 2020-03-29 23:17:10 +02:00
ksyms.c um: Add SPDX headers to files in arch/um/kernel/ 2019-09-15 21:37:17 +02:00
maccess.c maccess: always use strict semantics for probe_kernel_read 2020-06-09 09:39:15 -07:00
mem.c mm: pgtable: add shortcuts for accessing kernel PMD and PTE 2020-06-09 09:39:13 -07:00
physmem.c um: Add SPDX headers to files in arch/um/kernel/ 2019-09-15 21:37:17 +02:00
process.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
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: Add SPDX headers to files in arch/um/kernel/ 2019-09-15 21:37:17 +02:00
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 kernel: rename show_stack_loglvl() => show_stack() 2020-06-09 09:39:13 -07:00
time.c um: Implement ndelay/udelay in time-travel mode 2020-03-29 23:29:52 +02:00
tlb.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
trap.c mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
um_arch.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
umid.c um: Add SPDX headers to files in arch/um/kernel/ 2019-09-15 21:37:17 +02:00
uml.lds.S um: Fix overlapping ELF segments when statically linked 2020-03-29 23:21:29 +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