KVM: s390: selftests: Verify reject memory region operations for ucontrol VMs

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Add a test case verifying KVM_SET_USER_MEMORY_REGION and
KVM_SET_USER_MEMORY_REGION2 cannot be executed on ucontrol VMs.

Executing this test case on not patched kernels will cause a null
pointer dereference in the host kernel.
This is fixed with commit:
commit 7816e58967 ("kvm: s390: Reject memory region operations for ucontrol VMs")

Signed-off-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20241107141024.238916-4-schlameuss@linux.ibm.com
[frankja@linux.ibm.com: Fixed patch prefix]
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Message-ID: <20241107141024.238916-4-schlameuss@linux.ibm.com>

...

This commit is contained in:

Christoph Schlameuss 2024-11-07 15:10:22 +01:00 • committed by Janosch Frank

parent 0185fbc6a2

commit 89be254457

1 changed files with 22 additions and 0 deletions

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tools/testing/selftests/kvm/s390x/ucontrol_test.c

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