linux/arch/x86/entry
Eric W. Biederman 695dd0d634 signal/x86: In emulate_vsyscall force a signal instead of calling do_exit
Directly calling do_exit with a signal number has the problem that
all of the side effects of the signal don't happen, such as
killing all of the threads of a process instead of just the
calling thread.

So replace do_exit(SIGSYS) with force_fatal_sig(SIGSYS) which
causes the signal handling to take it's normal path and work
as expected.

Cc: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20211020174406.17889-17-ebiederm@xmission.com
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2021-10-29 14:31:34 -05:00
..
syscalls compat: remove some compat entry points 2021-09-08 15:32:35 -07:00
vdso x86/build/vdso: fix missing FORCE for *.so build rule 2021-09-03 08:17:19 +09:00
vsyscall signal/x86: In emulate_vsyscall force a signal instead of calling do_exit 2021-10-29 14:31:34 -05:00
calling.h x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros 2021-05-12 10:49:15 +02:00
common.c X86 entry code related updates: 2021-06-29 12:44:51 -07:00
entry_32.S - turn the stack canary into a normal __percpu variable on 32-bit which 2021-04-27 17:45:09 -07:00
entry_64_compat.S x86/sev-es: Introduce ip_within_syscall_gap() helper 2021-03-08 14:22:17 +01:00
entry_64.S X86 entry code related updates: 2021-06-29 12:44:51 -07:00
Makefile x86/syscalls: Don't adjust CFLAGS for syscall tables 2021-05-25 16:59:23 +02:00
syscall_32.c x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall 2021-05-20 15:03:59 +02:00
syscall_64.c x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall 2021-05-20 15:03:59 +02:00
syscall_x32.c x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall 2021-05-20 15:03:59 +02:00
thunk_32.S x86/entry: Remove unused THUNKs 2020-08-26 12:41:54 +02:00
thunk_64.S x86/entry: Remove put_ret_addr_in_rdi THUNK macro argument 2021-01-19 11:06:14 +01:00