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xemu/linux-user
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Richard Henderson 360f0abdc5 linux-user: Use signed lengths in uaccess.c 
Partially revert 09f679b62d, but only for the length arguments.
Instead of reverting to long, use ssize_t.  Reinstate the > 0 check
in unlock_user.

Fixes: 09f679b62d
Reported-by: Coverity (CID 1446711)
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210315204004.2025219-1-richard.henderson@linaro.org>
[lv: remove superfluous semicolon]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-04-07 18:55:27 +02:00
..
aarch64 semihosting: Move include/hw/semihosting/ -> include/semihosting/ 2021-03-10 15:34:12 +00:00
alpha linux-user: target: signal: Support TARGET_SS_AUTODISARM 2021-02-13 22:50:50 +01:00
arm semihosting: Move include/hw/semihosting/ -> include/semihosting/ 2021-03-10 15:34:12 +00:00
cris linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
generic linux-user: target: signal: Support TARGET_SS_AUTODISARM 2021-02-13 22:50:50 +01:00
hexagon Hexagon (linux-user/hexagon) Linux user emulation 2021-02-18 07:48:22 -08:00
host linux-user/: fix some comment spelling errors 2020-09-17 20:39:22 +02:00
hppa linux-user: Use cpu_untagged_addr in access_ok; split out *_untagged 2021-02-16 11:04:53 +00:00
i386 linux-user: Use cpu_untagged_addr in access_ok; split out *_untagged 2021-02-16 11:04:53 +00:00
m68k linux-user: Correct definition of stack_t 2020-11-11 10:59:39 +01:00
microblaze linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
mips linux-user: target: signal: Support TARGET_SS_AUTODISARM 2021-02-13 22:50:50 +01:00
mips64 linux-user/mips: Support the n32 ABI for the R5900 2021-02-15 12:10:03 +01:00
nios2 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
openrisc linux-user: update syscall_nr.h to Linux 5.9-rc7 2020-10-26 11:39:23 +01:00
ppc exec: Use cpu_untagged_addr in g2h; split out g2h_untagged 2021-02-16 11:04:53 +00:00
riscv linux-user/riscv: initialise the TaskState heap/stack info 2021-03-24 14:25:16 +00:00
s390x linux-user/s390x: Use the guest pointer for the sigreturn stub 2021-03-25 20:55:07 +01:00
sh4 accel/tcg: Precompute curr_cflags into cpu->tcg_cflags 2021-03-06 11:53:57 -08:00
sparc linux-user: target: signal: Support TARGET_SS_AUTODISARM 2021-02-13 22:50:50 +01:00
sparc64 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
x86_64 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
xtensa linux-user: update syscall.tbl to Linux 5.9-rc7 2020-10-26 11:39:23 +01:00
cpu_loop-common.h cpu: Replace ENV_GET_CPU with env_cpu 2019-06-10 07:03:34 -07:00
elfload.c linux-user/elfload: fix address calculation in fallback scenario 2021-03-13 10:45:11 +01:00
errno_defs.h Supply missing header guards 2019-06-12 13:20:21 +02:00
exit.c gdbstub: drop CPUEnv from gdb_exit() 2021-01-18 10:05:06 +00:00
fd-trans.c linux-user,netlink: add IFLA_BRPORT_MRP_RING_OPEN, IFLA_BRPORT_MRP_IN_OPEN 2020-11-17 15:22:52 +01:00
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 exec: Use cpu_untagged_addr in g2h; split out g2h_untagged 2021-02-16 11:04:53 +00:00
ioctls.h linux-user: Conditionalize TUNSETVNETLE 2021-01-07 05:09:06 -10:00
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: manage binfmt-misc preserve-arg[0] flag 2021-03-13 10:45:11 +01:00
meson.build semihosting: Move ARM semihosting code to shared directories 2021-01-18 10:05:06 +00:00
mmap.c linux-user/aarch64: Implement PROT_MTE 2021-02-16 13:08:46 +00:00
qemu.h linux-user: Use signed lengths in uaccess.c 2021-04-07 18:55:27 +02:00
safe-syscall.S linux-user: Provide safe_syscall for fixing races between signals and syscalls 2016-05-27 14:49:51 +03:00
semihost.c semihosting: Move include/hw/semihosting/ -> include/semihosting/ 2021-03-10 15:34:12 +00:00
signal-common.h linux-user: Make sigaltstack stacks per-thread 2019-07-26 19:24:33 +02:00
signal.c linux-user/signal: Decode waitid si_code 2021-02-13 22:50:49 +01:00
socket.h Supply missing header guards 2019-06-12 13:20:21 +02:00
strace.c linux-user: Add IPv6 options to do_print_sockopt() 2021-01-21 13:27:08 +01:00
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 Remove deprecated target tilegx 2021-03-09 11:26:32 +01:00
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 linux-user: NETLINK_LIST_MEMBERSHIPS: Allow bad ptr if its length is 0 2021-03-29 21:56:18 +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 linux-user: Use signed lengths in uaccess.c 2021-04-07 18:55:27 +02:00
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