It really only matters to debuggers but the SIGKILL does not have any si_codes that use the fault member of the siginfo union. Correct this the simple way and call force_sig instead of force_sig_fault when the signal is SIGKILL.
Cc: [email protected] Cc: Dave Martin <[email protected]> Cc: James Morse <[email protected]> Cc: Will Deacon <[email protected]> Fixes: af40ff687bc9 ("arm64: signal: Ensure si_code is valid for all fault signals") Signed-off-by: "Eric W. Biederman" <[email protected]> --- arch/arm64/kernel/traps.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index ade32046f3fe..0feb17bdcaa0 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -282,6 +282,11 @@ void arm64_notify_die(const char *str, struct pt_regs *regs, current->thread.fault_address = 0; current->thread.fault_code = err; + if (signo == SIGKILL) { + arm64_show_signal(signo, str); + force_sig(signo, current); + return; + } arm64_force_sig_fault(signo, sicode, addr, str); } else { die(str, regs, err); -- 2.21.0
