(gdb) bt
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1 0x000003fffdd2b232 in __GI_abort () at abort.c:79
#2 0x000003fffdb03a64 in log_assert_failed_realm () from
/lib/systemd/libsystemd-shared-243.so
#3 0x000002aa0000746e in test_memory_deny_write_execute_mmap () at
../src/test/test-seccomp.c:507
#4 0x000002aa00002a48 in main (argc=<optimized out>, argv=<optimized out>) at
../src/test/test-seccomp.c:987
The test is:
static void test_memory_deny_write_execute_mmap(void) {
...
if (pid == 0) {
void *p;
p = mmap(NULL, page_size(), PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_ANONYMOUS, -1,0);
assert_se(p != MAP_FAILED);
assert_se(munmap(p, page_size()) >= 0);
p = mmap(NULL, page_size(), PROT_WRITE|PROT_READ,
MAP_PRIVATE|MAP_ANONYMOUS, -1,0);
assert_se(p != MAP_FAILED);
assert_se(munmap(p, page_size()) >= 0);
assert_se(seccomp_memory_deny_write_execute() >= 0);
p = mmap(NULL, page_size(), PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_ANONYMOUS, -1,0);
#if defined(__x86_64__) || defined(__i386__) || defined(__powerpc64__) ||
defined(__arm__) || defined(__aarch64__) || defined(__s390__) ||
defined(__s390x__)
assert_se(p == MAP_FAILED);
assert_se(errno == EPERM);
#else /* unknown architectures */
assert_se(p != MAP_FAILED);
assert_se(munmap(p, page_size()) >= 0);
#endif
p = mmap(NULL, page_size(), PROT_WRITE|PROT_READ,
MAP_PRIVATE|MAP_ANONYMOUS, -1,0);
assert_se(p != MAP_FAILED);
assert_se(munmap(p, page_size()) >= 0);
_exit(EXIT_SUCCESS);
}
assert_se(wait_for_terminate_and_check("memoryseccomp-mmap",
pid, WAIT_LOG) == EXIT_SUCCESS);
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https://bugs.launchpad.net/bugs/1853852
Title:
hard to reproduce issues in systemd autopkgtest against new libseccomp
2.4.2
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https://bugs.launchpad.net/ubuntu/+source/libseccomp/+bug/1853852/+subscriptions
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