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![]() - Handle the BTF bit correctly so it doesn't get lost due to a kernel #DB - Only clear and set the virtual DR6 value used by ptrace on user space triggered #DB. A kernel #DB must leave it alone to ensure data consistency for ptrace. - Make the bitmasking of the virtual DR6 storage correct so it does not lose DR_STEP. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl+evlcTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYofaAD/4gzRDGRZiorwX60o+RuJjgBN/iS1BN SEpprlC2TGtdiOvGNKxMxwMZFbpSExgGtwku6xya1VDDLJS+NwartL0AEnCsei2e O4KqUiU6HuBsKi+M0LARVm8bHRzb1s3YjrFFMwrarTm40joOvxNiw2w+nvTtamfJ tlkQMp5/iX0KNO5FBLMPDDwVyE3xY+yAyiI0Z7bPmrhNSlNWW6x8QKoBpp8T5v2a ATIhAnOAClZVH/ig9A/fbUgsBqxyyIZRSW2wudAtHZg8NhDox+TitUIWG+IEoRDL uW2hKSqxrBsapTWxv2+tN5Kk0ORUSqEMqWaog80pjP3o0ezUKZxQsYuAZ430bzDr qqVWGpX42UjYet6V4S9P+I/gN3lCZmYoc24zfWLT8T8KRaDOOebYmC7EiJjudaXd sEYCKRv10ysBlFqXyzz2LDOyjFOiXodyFbhdBQVCPUuis99mHdYIJHoUxpYhgZSH IIbYn9RUsij6mMaCfPhNVoJwRVtY+AGGisfEnk+v5dfFYQruliFWgyjDYWT5+IxQ ZsJOJVCqR8JT9bL0xiTNbcZ3SvRfMQ2pLfd6MWX9fQZ9o6LvVSg32gPjgneKpQ/y QLRtiyVW3oBw2rJZeoYVIHrD8r3SUOI8iQLcCjXwxQoBiei6G+4GNdFtkUmqAFB3 VvtPZYyjj05gCw== =Hfek -----END PGP SIGNATURE----- Merge tag 'x86-urgent-2020-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "Three fixes all related to #DB: - Handle the BTF bit correctly so it doesn't get lost due to a kernel #DB - Only clear and set the virtual DR6 value used by ptrace on user space triggered #DB. A kernel #DB must leave it alone to ensure data consistency for ptrace. - Make the bitmasking of the virtual DR6 storage correct so it does not lose DR_STEP" * tag 'x86-urgent-2020-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/debug: Fix DR_STEP vs ptrace_get_debugreg(6) x86/debug: Only clear/set ->virtual_dr6 for userspace #DB x86/debug: Fix BTF handling |
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