linux

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Jason A. Donenfeld 2aec90036d selftests: vDSO: ensure vgetrandom works in a time namespace

After verifying that vDSO getrandom does work, which ensures that the
RNG is initialized, test to see if it also works inside of a time
namespace. This is important to test, because the vvar pages get
swizzled around there. If the arch code isn't careful, the RNG will
appear uninitialized inside of a time namespace.

Because broken code makes the RNG appear uninitialized, test that
everything works by issuing a call to vgetrandom from a fork in a time
namespace, and use ptrace to ensure that the actual syscall getrandom
doesn't get called. If it doesn't get called, then the test succeeds.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

2024-09-13 17:28:35 +02:00

crypto/chacha20-s390

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cxl

cxl/test: Skip cxl_setup_parent_dport() for emulated dports

2024-08-09 15:14:12 -07:00

fault-injection

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ktest

ktest: force $buildonly = 1 for 'make_warnings_file' test type

2024-03-15 12:36:19 -04:00

kunit