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abcac736c1
xemu/linux-user
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Daniel Santos abcac736c1 linux-user: Sanitize interp_info and, for mips only, init field fp_abi 
Sanitize interp_info structure in load_elf_binary() and, for MIPS only,
init its field fp_abi to MIPS_ABI_FP_UNKNOWN. This fixes appearances of
"Unexpected FPU mode" message in some MIPS use cases. Currently, this
bug is a complete stopper for some MIPS binaries.

In load_elf_binary(), struct image_info interp_info is used without
being properly initialized. One result is that when the ELF's program
header doesn't contain an entry for the ABI flags, then the value of
the struct image_info's fp_abi field is set to whatever happened to
be in stack memory at the time.

Backporting to 4.0 and, if possible, to 3.1 is recommended.

Fixes: https://bugs.launchpad.net/qemu/+bug/1825002

Signed-off-by: Daniel Santos <daniel.santos@pobox.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1558282527-22183-6-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-05-22 20:50:55 +02:00
..
aarch64 linux-user: Implement PR_PAC_RESET_KEYS 2019-02-05 16:52:39 +00:00
alpha qom/cpu: Simplify how CPUClass:cpu_dump_state() prints 2019-04-18 22:18:59 +02:00
arm linux-user: Don't call gdb_handlesig() before queue_signal() 2018-11-12 15:48:00 +01:00
cris qom/cpu: Simplify how CPUClass:cpu_dump_state() prints 2019-04-18 22:18:59 +02:00
generic linux-user: move generic signal definitions to generic/signal.h 2018-06-04 01:30:44 +02:00
host linux-user: Add safe_syscall for riscv64 host 2018-12-26 06:40:02 +11:00
hppa linux-user: Don't call gdb_handlesig() before queue_signal() 2018-11-12 15:48:00 +01:00
i386 linux-user: Don't call gdb_handlesig() before queue_signal() 2018-11-12 15:48:00 +01:00
m68k target/m68k: Fix LGPL information in the file headers 2019-01-30 14:20:13 +01:00
microblaze qom/cpu: Simplify how CPUClass:cpu_dump_state() prints 2019-04-18 22:18:59 +02:00
mips target/mips: reimplement SC instruction emulation and use cmpxchg 2019-02-14 17:47:28 +01:00
mips64 linux-user: Add prctl() PR_SET_FP_MODE and PR_GET_FP_MODE implementations 2018-10-29 15:50:31 +01:00
nios2 linux-user/nios2 linux-user/riscv: Clean up header guards 2019-05-13 08:58:55 +02:00
openrisc target/openrisc: Fix LGPL information in the file headers 2019-05-08 17:45:54 +02:00
ppc target/ppc: move FP and VMX registers into aligned vsr register array 2019-01-09 09:28:14 +11:00
riscv linux-user/nios2 linux-user/riscv: Clean up header guards 2019-05-13 08:58:55 +02:00
s390x qom/cpu: Simplify how CPUClass:cpu_dump_state() prints 2019-04-18 22:18:59 +02:00
sh4 target/sh4: Fix LGPL information in the file headers 2019-05-08 17:45:54 +02:00
sparc qom/cpu: Simplify how CPUClass:cpu_dump_state() prints 2019-04-18 22:18:59 +02:00
sparc64 linux-user/sparc64: Add inotify_rm_watch and tee syscalls 2018-06-11 14:47:45 +02:00
tilegx linux-user: move generic signal definitions to generic/signal.h 2018-06-04 01:30:44 +02:00
x86_64 remove space-tab sequences 2019-01-11 15:46:55 +01:00
xtensa Clean up ill-advised or unusual header guards 2019-05-13 08:58:55 +02:00
cpu_loop-common.h qom/cpu: Simplify how CPUClass:cpu_dump_state() prints 2019-04-18 22:18:59 +02:00
elfload.c linux-user: Sanitize interp_info and, for mips only, init field fp_abi 2019-05-22 20:50:55 +02:00
errno_defs.h linux-user: Handle ERFKILL and EHWPOISON 2017-01-22 18:14:10 -08:00
exit.c linux-user: fix GPROF build failure 2019-05-10 12:44:23 +02:00
fd-trans.c linux-user: add new netlink types 2019-03-07 11:02:33 +01:00
fd-trans.h linux-user: move TargetFdTrans functions to their own file 2018-09-25 22:36:47 +02:00
flat.h
flatload.c linux-user/flatload: fix initial stack pointer alignment 2018-10-30 11:23:32 -07:00
ioctls.h linux-user: Add support for SIOC<G|S>IFPFLAGS ioctls for all targets 2019-05-22 20:50:55 +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
m68k-sim.c linux-user: Clean up includes 2016-01-29 15:07:22 +00:00
main.c cpu: Rename parse_cpu_model() to parse_cpu_option() 2019-04-25 14:17:35 -03:00
Makefile.objs linux-user: move TargetFdTrans functions to their own file 2018-09-25 22:36:47 +02:00
mmap.c avoid TABs in files that only contain a few 2019-01-11 15:46:56 +01:00
qemu.h linux-user: Fix compilation with clang 3.4 2019-01-22 06:26:31 +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: introduce target_sigsp() and target_save_altstack() 2018-05-03 18:29:15 +02:00
signal.c linux-user: avoid treading on gprof's SIGPROF signals 2019-05-10 12:44:23 +02:00
socket.h linux-user: update ARCH_HAS_SOCKET_TYPES use 2018-05-25 10:10:55 +02:00
strace.c linux-user: Nicer strace output of chroot() syscall 2019-03-07 10:57:29 +01:00
strace.list linux-user: Nicer strace output of chroot() syscall 2019-03-07 10:57:29 +01:00
syscall_defs.h linux-user: Add support for SIOC<G|S>IFPFLAGS ioctls for all targets 2019-05-22 20:50:55 +02:00
syscall_types.h linux-user: Implement special usbfs ioctls. 2018-10-19 14:05:10 +02:00
syscall.c linux-user: add pseudo /proc/hardware for m68k 2019-05-22 20:50:55 +02:00
target_flat.h
trace-events trace-events: Fix attribution of trace points to source 2019-03-22 16:18:07 +00:00
uaccess.c avoid TABs in files that only contain a few 2019-01-11 15:46:56 +01:00
uname.c linux-user: avoid string truncation warnings in uname field copying 2019-05-09 17:27:38 +02:00
uname.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
vm86.c avoid TABs in files that only contain a few 2019-01-11 15:46:56 +01:00