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Kernel: Fix pledge syscall applying new pledges when it fails (#2076)

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If the exec promises fail to apply, then the normal promises should
not apply either. Add a test for this fixed functionality.
This commit is contained in:
Michael Lelli 2020-05-02 17:41:18 -05:00 • committed by GitHub
parent 37d1b0c875
commit 58a34fbe09
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 37 additions and 4 deletions
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25
Tests/Kernel/pledge-test-failures.cpp Normal file
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@ -0,0 +1,25 @@
#include <stdio.h>
#include <unistd.h>
int main(int argc, char** argv)
{
int res = pledge("stdio unix rpath", "stdio");
if (res < 0) {
perror("pledge");
return 1;
}
res = pledge("stdio unix", "stdio unix");
if (res >= 0) {
fprintf(stderr, "second pledge should have failed\n");
return 1;
}
res = pledge("stdio rpath", "stdio");
if (res < 0) {
perror("pledge");
return 1;
}
return 0;
}