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bbd5630a75
qemu/linux-user
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Ilya Leoshkevich bbd5630a75 linux-user: Emulate /proc/self/maps under mmap_lock 
If one thread modifies the mappings and another thread prints them,
a situation may occur that the printer thread sees a guest mapping
without a corresponding host mapping, leading to a crash in
open_self_maps_2().

Cc: qemu-stable@nongnu.org
Fixes: 7b7a3366e1 ("linux-user: Use walk_memory_regions for open_self_maps")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20241014203441.387560-1-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-22 13:45:03 -07:00
..
aarch64 linux-user,aarch64: move to syscalltbl file 2024-09-22 09:30:18 +02:00
alpha target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
arm target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
generic linux-user: Split TARGET_PROT_* out of syscall_defs.h 2023-07-15 08:02:32 +01:00
hexagon linux-user,hexagon: move to syscalltbl file 2024-09-22 09:30:18 +02:00
hppa linux-user/hppa: fix -Werror=maybe-uninitialized false-positive 2024-10-02 16:14:29 +04:00
i386 linux-user/i386: Use explicit little-endian LD/ST API 2024-10-15 12:13:59 -03:00
include linux-user: cleanup unused linux-user/include/host directories 2023-08-08 20:44:08 +02:00
loongarch64 linux-user,loongarch: move to syscalltbl file 2024-09-22 09:30:18 +02:00
m68k target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
microblaze target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
mips target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
mips64 target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
openrisc linux-user,openrisc: move to syscalltbl file 2024-09-22 09:30:18 +02:00
ppc target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
riscv linux-user,riscv: move to syscalltbl file 2024-09-22 09:30:18 +02:00
s390x target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
sh4 target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
sparc target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
x86_64 target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
xtensa target/ppc: Fix lxvx/stxvx facility check 2024-09-27 10:32:29 +01:00
cpu_loop-common.h
elfload.c linux-user/i386: Emulate orig_ax 2024-10-13 10:05:51 -07:00
errnos.c.inc
exit.c accel/tcg: Move perf and debuginfo support to tcg/ 2024-01-29 21:04:10 +10:00
fd-trans.c linux-user: handle netlink flag NLA_F_NESTED 2023-03-10 20:45:47 +01:00
fd-trans.h linux-user: fix timerfd read endianness conversion 2023-03-10 20:42:00 +01:00
flat.h linux-user/flatload.c: Remove unused bFLT shared-library and ZFLAT code 2024-04-25 10:21:06 +01:00
flatload.c linux-user/flatload: Take mmap_lock in load_flt_binary() 2024-10-08 06:28:46 -07:00
gen-vdso-elfn.c.inc linux-user/ppc: Add vdso 2023-10-30 13:41:56 -07:00
gen-vdso.c linux-user: Add gen-vdso tool 2023-10-30 13:41:55 -07:00
ioctls.h linux-user: Add ioctl for BLKBSZSET 2024-06-05 09:04:30 -07:00
linux_loop.h
linuxload.c {linux,bsd}-user: Introduce get_task_state() 2024-03-06 12:35:19 +00:00
loader.h linux-user: Report AArch64 hwcap2 fields above bit 31 2023-11-02 13:36:45 +00:00
main.c linux-user/main: Check errno when getting AT_EXECFD 2024-07-30 07:59:23 +10:00
meson.build linux-user,hexagon: move to syscalltbl file 2024-09-22 09:30:18 +02:00
mmap.c linux-user: Handle short reads in mmap_h_gt_g 2024-08-21 09:09:46 +10:00
qemu.h linux-user/i386: Emulate orig_ax 2024-10-13 10:05:51 -07:00
semihost.c
signal-common.h linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
signal.c exec/cpu: Extract page-protection definitions to page-protection.h 2024-05-06 11:17:15 +02:00
socket.h
strace.c linux-user: Add strace for recvfrom() 2024-10-08 06:31:36 -07:00
strace.h
strace.list linux-user: Add strace for recvfrom() 2024-10-08 06:31:36 -07:00
syscall_defs.h linux-user: add strace support for openat2 2024-10-08 06:31:36 -07:00
syscall_types.h linux-user: Add FITRIM ioctl 2024-04-24 15:46:00 -07:00
syscall.c linux-user: Emulate /proc/self/maps under mmap_lock 2024-10-22 13:45:03 -07:00
thunk.c user: Move 'thunk.h' from 'exec/user' to 'user' 2024-05-03 17:21:20 +02:00
trace-events
trace.h
uaccess.c meson: Make DEBUG_REMAP a meson option 2024-04-24 15:46:00 -07:00
uname.c
uname.h
user-internals.h linux-user: Remove unused handle_vm86_fault 2024-10-03 17:26:06 +03:00
user-mmap.h linux-user: Move shmat and shmdt implementations to mmap.c 2023-09-01 13:35:02 -07:00
vm86.c linux-user/vm86: Fix compilation with Clang 2024-10-13 10:34:00 -07:00