Eric W. Biederman e1c91672c5 ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP ...

commit c200e4bb44e80b343c09841e7caaaca0aac5e5fa upstream.

User mode linux is the last user of the PT_DTRACE flag.  Using the flag to indicate
single stepping is a little confusing and worse changing tsk->ptrace without locking
could potentionally cause problems.

So use a thread info flag with a better name instead of flag in tsk->ptrace.

Remove the definition PT_DTRACE as uml is the last user.

Cc: stable@vger.kernel.org
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Tested-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lkml.kernel.org/r/20220505182645.497868-3-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-06-09 10:22:29 +02:00

..

skas

Merge tag 'for-linus-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

2021-09-09 13:45:26 -07:00

asm-offsets.c

…

config.c.in

um: Add SPDX headers to files in arch/um/kernel/

2019-09-15 21:37:17 +02:00

dyn.lds.S

um: Mark all kernel symbols as local

2021-04-15 23:10:29 +02:00

early_printk.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19 17:09:55 +02:00

exec.c

ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP

2022-06-09 10:22:29 +02:00

exitcode.c

proc: convert everything to "struct proc_ops"

2020-02-04 03:05:26 +00:00

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

ioport.c

um: add PCI over virtio emulation driver

2021-06-17 21:45:43 +02:00

irq.c

um: add PCI over virtio emulation driver

2021-06-17 21:45:43 +02:00

kmsg_dump.c

printk: introduce a kmsg_dump iterator

2021-03-08 11:43:27 +01:00

ksyms.c

um: rename set_signals() to um_set_signals()

2022-01-27 11:03:44 +01:00

maccess.c

maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault

2020-06-17 10:57:41 -07:00

Makefile

um: Add support for host CPU flags and alignment

2021-06-17 22:01:26 +02:00

mem.c

Merge tag 'for-linus-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

2021-05-04 18:15:10 -07:00

physmem.c

um: Add SPDX headers to files in arch/um/kernel/

2019-09-15 21:37:17 +02:00

process.c

ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP

2022-06-09 10:22:29 +02:00

ptrace.c

ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP

2022-06-09 10:22:29 +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: Support dynamic IRQ allocation

2020-12-13 22:22:08 +01:00

signal.c

ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP

2022-06-09 10:22:29 +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

um: Clean up stacktrace dump

2020-10-11 23:25:07 +02:00

time.c

um: time-travel/signals: fix ndelay() in interrupt

2021-06-17 21:44:52 +02:00

tlb.c

um: remove process stub VMA

2021-02-12 21:37:38 +01:00

trap.c

signal: Replace force_sigsegv(SIGSEGV) with force_fatal_sig(SIGSEGV)

2021-11-25 09:49:06 +01:00

um_arch.c

Merge tag 'for-linus-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

2021-07-09 10:19:13 -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: Mark all kernel symbols as local

2021-04-15 23:10:29 +02:00

vmlinux.lds.S

…