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qemu/linux-user
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Ilya Leoshkevich fa527b44c2 linux-user: Fix shmat(NULL) for h != g 
In the h != g && shmaddr == NULL && !reserved_va case, target_shmat()
incorrectly mmap()s the initial anonymous range with
MAP_FIXED_NOREPLACE, even though the earlier mmap_find_vma() has
already reserved the respective address range.

Fix by using MAP_FIXED when "mapped", which is set after
mmap_find_vma(), is true.

Fixes: 78bc8ed9a8 ("linux-user: Rewrite target_shmat")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240325192436.561154-4-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-26 18:20:36 -10:00
..
aarch64 linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
alpha linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
arm linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
cris {linux,bsd}-user: Introduce get_task_state() 2024-03-06 12:35:19 +00:00
generic linux-user: Split TARGET_PROT_* out of syscall_defs.h 2023-07-15 08:02:32 +01:00
hexagon linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
hppa linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
i386 linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
include linux-user: cleanup unused linux-user/include/host directories 2023-08-08 20:44:08 +02:00
loongarch64 linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
m68k linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
microblaze linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
mips linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
mips64 linux-user: Split out cpu/target_proc.h 2023-09-01 13:33:09 -07:00
nios2 linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
openrisc linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
ppc linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
riscv linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
s390x linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
sh4 linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
sparc linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
x86_64 linux-user/x86_64: Add vdso 2023-10-30 13:41:55 -07:00
xtensa linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
cpu_loop-common.h linux-user: Add guest memory layout to exception dump 2022-10-25 09:20:40 +02:00
elfload.c linux-user/elfload: Fully initialize struct target_elf_prpsinfo 2024-03-12 03:36:24 -10:00
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
flatload.c linux-user: Replace bprm->fd with bprm->src.fd 2023-10-30 13:41:55 -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 FIFREEZE and FITHAW ioctls 2024-03-12 03:35:00 -10:00
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 gdbstub: Save target's siginfo 2024-03-13 11:43:52 +00:00
meson.build linux-user/loongarch64: Add vdso 2023-10-30 13:41:55 -07:00
mmap.c linux-user: Fix shmat(NULL) for h != g 2024-03-26 18:20:36 -10:00
qemu.h {linux,bsd}-user: Introduce get_task_state() 2024-03-06 12:35:19 +00:00
semihost.c
signal-common.h linux-user: Move tswap_siginfo out of target code 2024-03-13 11:43:52 +00:00
signal.c gdbstub: Save target's siginfo 2024-03-13 11:43:52 +00:00
socket.h
strace.c linux-user: Fix shmat() strace 2024-03-26 18:20:36 -10:00
strace.h
strace.list linux-user: Add strace for shmat 2024-03-01 08:05:59 -10:00
syscall_defs.h linux-user: Add FIFREEZE and FITHAW ioctls 2024-03-12 03:35:00 -10:00
syscall_types.h
syscall.c linux-user: Implement PR_GET_TID_ADDRESS 2024-03-12 03:35:01 -10:00
thunk.c linux-user: Use ARRAY_SIZE with bitmask_transtbl 2023-08-09 07:17:42 -07:00
trace-events
trace.h
uaccess.c
uname.c
uname.h
user-internals.h {linux,bsd}-user: Pass pid to fork_end() 2024-03-06 12:35:19 +00:00
user-mmap.h linux-user: Move shmat and shmdt implementations to mmap.c 2023-09-01 13:35:02 -07:00
vm86.c {linux,bsd}-user: Introduce get_task_state() 2024-03-06 12:35:19 +00:00