On Mon, Aug 22, 2022 at 09:12:40PM +0800, 王海弛 wrote: > Dear Linux maintainers and reviewers: > We would like to report a linux kernel bug, found by a modified version of syzkaller. > May affected file: arch/x86/events/core.c, include/linux/perf_event.h > Kernel Version: 8fe31e0995f048d16b378b90926793a0aa4af1e5 > Kernel Config: see attach, linux.config > Syzkaller Version: 3666edfeb55080ebe138d77417fa96fe2555d6bb > reproducing program: see attach, reproducing.txt (There are syz-reproducing program, C reproducing program and crash report created by syzkaller, both of which can replay the crash) > Feel free to email us if any other infomations are needed. Hope the provided materials will help finding and fixing the bug. > The full log crash log are as follows:(also in the attach, crash.report) > ----------------- > > > unchecked MSR access error: WRMSR to 0x188 (tried to write 0x0000000300530000) at rIP: 0xffffffff810287de (__wrmsr arch/x86/include/asm/msr.h:103 [inline]) > unchecked MSR access error: WRMSR to 0x188 (tried to write 0x0000000300530000) at rIP: 0xffffffff810287de (native_write_msr arch/x86/include/asm/msr.h:160 [inline]) > unchecked MSR access error: WRMSR to 0x188 (tried to write 0x0000000300530000) at rIP: 0xffffffff810287de (wrmsrl arch/x86/include/asm/msr.h:281 [inline]) > unchecked MSR access error: WRMSR to 0x188 (tried to write 0x0000000300530000) at rIP: 0xffffffff810287de (__x86_pmu_enable_event arch/x86/events/intel/../perf_event.h:1120 [inline]) > unchecked MSR access error: WRMSR to 0x188 (tried to write 0x0000000300530000) at rIP: 0xffffffff810287de (intel_pmu_enable_event+0x3ce/0xfe0 arch/x86/events/intel/core.c:2693) I'm guess this is some sort of broken virt setup?
