xemu/linux-user
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