| Message ID | 1500177424-13695-49-git-send-email-linuxram@us.ibm.com (mailing list archive) |
|---|---|
| State | RFC |
| Headers | show |
diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c index 0f2d1ce..4f4ce36 100644 --- a/tools/testing/selftests/vm/protection_keys.c +++ b/tools/testing/selftests/vm/protection_keys.c @@ -582,6 +582,9 @@ int alloc_pkey(void) int sys_pkey_free(unsigned long pkey) { int ret = syscall(SYS_pkey_free, pkey); + + if (!ret) + shadow_pkey_reg &= reset_bits(pkey, PKEY_DISABLE_ACCESS); dprintf1("%s(pkey=%ld) syscall ret: %d\n", __func__, pkey, ret); return ret; }
When a key is freed, the key is no more effective. Clear the bits corresponding to the pkey in the shadow register. Otherwise it will carry some spurious bits which can trigger false-positive asserts. Signed-off-by: Ram Pai <linuxram@us.ibm.com> --- tools/testing/selftests/vm/protection_keys.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)