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fix(emerg-shutdown): close leaked input-device fds and swallow SIGSYS #370

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fix(emerg-shutdown): close leaked input-device fds and swallow SIGSYS #370

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5bb3f01
fix(emerg-shutdown): close fds for non-panic input devices
maybebyte Jul 15, 2026
81096c4
fix(emerg-shutdown): swallow SIGSYS in signal-ignore loop
maybebyte Jul 15, 2026
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4 changes: 3 additions & 1 deletion usr/src/security-misc/emerg-shutdown.c#security-misc-shared
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Original file line number Diff line number Diff line change
Expand Up @@ -684,6 +684,7 @@ void hw_monitor(int argc, char **argv) {
}

if (!bitset_get(key_flags, EV_KEY)) {
close(tmp_fd);
continue;
}

Expand All @@ -708,6 +709,7 @@ void hw_monitor(int argc, char **argv) {
}
}
if (!supports_panic) {
close(tmp_fd);
continue;
}

Expand Down Expand Up @@ -1009,7 +1011,7 @@ void fifo_monitor(char **argv) {

/* Swallow all signals that we can. */
sigact_swallow.sa_handler = SIG_IGN;
for (sig_idx = 1; sig_idx < max_sig_num; sig_idx++) {
for (sig_idx = 1; sig_idx <= max_sig_num; sig_idx++) {
if (sig_idx == SIGSTOP) {
continue;
}
Expand Down