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If the command terminated due to a signal, sudo will send that same

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signal to itself so the parent shell knows the command died from
a signal.  However, we don't want sudo itself to dump core.
This commit is contained in:
Todd C. Miller
2017-04-27 10:34:30 -06:00
parent 2d13bf3562
commit 91aec9730e
1 changed files with 8 additions and 0 deletions
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8
src/sudo.c
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@@ -316,9 +316,17 @@ main(int argc, char *argv[], char *envp[])
sudo_fatalx(U_("unexpected sudo mode 0x%x"), sudo_mode); sudo_fatalx(U_("unexpected sudo mode 0x%x"), sudo_mode);
} }
/*
* If the command was terminated by a signal, sudo needs to terminated
* the same way. Otherwise, the shell may ignore a keyboard-generated
* signal. However, we want to avoid having sudo dump core itself.
*/
if (WIFSIGNALED(status)) { if (WIFSIGNALED(status)) {
sigaction_t sa; sigaction_t sa;
if (WCOREDUMP(status))
disable_coredumps();
memset(&sa, 0, sizeof(sa)); memset(&sa, 0, sizeof(sa));
sigemptyset(&sa.sa_mask); sigemptyset(&sa.sa_mask);
sa.sa_handler = SIG_DFL; sa.sa_handler = SIG_DFL;