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Stephen Long d9a5eba477 Fix stack smashing when handling PR_GET_PDEATHSIG 
The bug was triggered by the following code on aarch64-linux-user:

int main(void)
{
  int PDeathSig = 0;
  if (prctl(PR_GET_PDEATHSIG, &PDeathSig) == 0 && PDeathSig == SIGKILL)
    prctl(PR_GET_PDEATHSIG, 0);
  return (PDeathSig == SIGKILL);
}

Signed-off-by: Stephen Long <steplong@quicinc.com>
Signed-off-by: Ana Pazos <apazos@quicinc.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200507130302.3684-1-steplong@quicinc.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-10-23 14:21:15 +02:00
..
aarch64
linux-user/: fix some comment spelling errors
2020-09-17 20:39:22 +02:00
alpha
linux-user: Add missing termbits types and values definitions
2020-08-27 12:29:50 +02:00
arm
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
cris
linux-user/: fix some comment spelling errors
2020-09-17 20:39:22 +02:00
generic
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
host
linux-user/: fix some comment spelling errors
2020-09-17 20:39:22 +02:00
hppa
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
i386
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
m68k
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
microblaze
linux-user/microblaze: Remove non-rt signal frames
2020-10-14 21:19:56 -07:00
mips
linux-user: Add missing termbits types and values definitions
2020-08-27 12:29:50 +02:00
mips64
linux-user: Add strace support for printing arguments of syscalls used to lock and unlock memory
2020-08-27 12:29:50 +02:00
nios2
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
openrisc
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
ppc
linux-user: fix ppc/termbits.h
2020-09-06 12:29:19 +02:00
riscv
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
s390x
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
sh4
linux-user: Add missing termbits types and values definitions
2020-08-27 12:29:50 +02:00
sparc
linux-user: Add missing termbits types and values definitions
2020-08-27 12:29:50 +02:00
sparc64
linux-user: Add missing termbits types and values definitions
2020-08-27 12:29:50 +02:00
tilegx
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
x86_64
linux-user: Add generic 'termbits.h' for some archs
2020-08-27 12:29:50 +02:00
xtensa
linux-user: Add missing termbits types and values definitions
2020-08-27 12:29:50 +02:00
cpu_loop-common.h
cpu: Replace ENV_GET_CPU with env_cpu
2019-06-10 07:03:34 -07:00
elfload.c
linux-user: test, don't assert addr != test in pgb_reserved_va
2020-09-16 09:56:39 +01:00
errno_defs.h
Supply missing header guards
2019-06-12 13:20:21 +02:00
exit.c
build: move TARGET_GPROF to config-host.mak
2020-02-12 16:29:27 +01:00
fd-trans.c
linux-user: add netlink RTM_SETLINK command
2020-07-13 21:26:33 +02:00
fd-trans.h
linux-user: move TargetFdTrans functions to their own file
2018-09-25 22:36:47 +02:00
flat.h
linux-user/: fix some comment spelling errors
2020-09-17 20:39:22 +02:00
flatload.c
linux-user/: fix some comment spelling errors
2020-09-17 20:39:22 +02:00
ioctls.h
linux-user: Add support for btrfs ioctls used to scrub a filesystem
2020-09-03 01:09:35 +02:00
linux_loop.h
linux-user: Add loop control ioctls
2016-07-19 15:22:33 +03:00
linuxload.c
avoid TABs in files that only contain a few
2019-01-11 15:46:56 +01:00
main.c
linux-user: Ensure mmap_min_addr is non-zero
2020-07-27 22:02:40 +02:00
meson.build
meson: linux-user
2020-08-21 06:30:38 -04:00
mmap.c
linux-user: Adjust guest page protection for the host
2020-08-23 16:57:58 +02:00
qemu.h
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
safe-syscall.S
linux-user: Provide safe_syscall for fixing races between signals and syscalls
2016-05-27 14:49:51 +03:00
signal-common.h
linux-user: Make sigaltstack stacks per-thread
2019-07-26 19:24:33 +02:00
signal.c
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
socket.h
Supply missing header guards
2019-06-12 13:20:21 +02:00
strace.c
linux-user: Add strace support for printing OFD fcntl operations
2020-09-01 11:47:12 +02:00
strace.list
linux-user: Add strace support for printing arguments of some clock and time functions
2020-08-27 12:29:50 +02:00
syscall_defs.h
linux-user: Protect btrfs ioctl target definitions
2020-09-06 12:29:19 +02:00
syscall_types.h
linux-user: Add support for btrfs ioctls used to scrub a filesystem
2020-09-03 01:09:35 +02:00
syscall.c
Fix stack smashing when handling PR_GET_PDEATHSIG
2020-10-23 14:21:15 +02:00
target_flat.h
Supply missing header guards
2019-06-12 13:20:21 +02:00
trace-events
linux-user: fix use of SIGRTMIN
2020-02-12 18:56:41 +01:00
trace.h
trace: switch position of headers to what Meson requires
2020-08-21 06:18:24 -04:00
uaccess.c
avoid TABs in files that only contain a few
2019-01-11 15:46:56 +01:00
uname.c
cpu: Replace ENV_GET_CPU with env_cpu
2019-06-10 07:03:34 -07:00
uname.h
Clean up decorations and whitespace around header guards
2016-07-12 16:20:46 +02:00
vm86.c
linux-user: Use `qemu_log' for non-strace logging
2020-02-19 11:17:40 +01:00