Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in emulator_read_write_onepage / install_new_memslots kvm | 2 | 1602d | 1615d | 0/26 | auto-closed as invalid on 2020/02/23 22:37 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in emulator_read_write_onepage / install_new_memslots kvm | 2 | 1602d | 1615d | 0/26 | auto-closed as invalid on 2020/02/23 22:37 |
================================================================== BUG: KCSAN: data-race in emulator_read_write_onepage / install_new_memslots write to 0xffff888100d4b000 of 8 bytes by task 16004 on cpu 0: install_new_memslots+0xe9/0x130 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1077 kvm_set_memslot+0x800/0xb70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1153 __kvm_set_memory_region+0x91c/0xc20 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1300 kvm_set_memory_region+0x31/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1321 kvm_vm_ioctl_set_memory_region arch/x86/kvm/../../../virt/kvm/kvm_main.c:1333 [inline] kvm_vm_ioctl+0x662/0x18b0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3604 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl+0x101/0x150 fs/ioctl.c:763 __do_sys_ioctl fs/ioctl.c:772 [inline] __se_sys_ioctl fs/ioctl.c:770 [inline] __x64_sys_ioctl+0x47/0x60 fs/ioctl.c:770 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888100d4b000 of 8 bytes by task 16009 on cpu 1: vcpu_match_mmio_gen arch/x86/kvm/x86.h:183 [inline] vcpu_match_mmio_gva arch/x86/kvm/x86.h:202 [inline] vcpu_mmio_gva_to_gpa arch/x86/kvm/x86.c:5597 [inline] emulator_read_write_onepage+0x1e3/0x740 arch/x86/kvm/x86.c:5722 emulator_read_write.isra.0+0x15b/0x300 arch/x86/kvm/x86.c:5782 emulator_read_emulated+0x4a/0x60 arch/x86/kvm/x86.c:5809 read_emulated arch/x86/kvm/emulate.c:1457 [inline] segmented_read+0x172/0x220 arch/x86/kvm/emulate.c:1481 x86_emulate_insn+0x9c9/0x2840 arch/x86/kvm/emulate.c:5621 x86_emulate_instruction+0x702/0x11d0 arch/x86/kvm/x86.c:6867 kvm_mmu_page_fault+0x1c7/0xac0 arch/x86/kvm/mmu/mmu.c:5495 handle_ept_violation+0x1ce/0x430 arch/x86/kvm/vmx/vmx.c:5196 vmx_handle_exit+0x1de/0xfe0 arch/x86/kvm/vmx/vmx.c:5980 vcpu_enter_guest+0xc00/0x3740 arch/x86/kvm/x86.c:8481 vcpu_run arch/x86/kvm/x86.c:8544 [inline] kvm_arch_vcpu_ioctl_run+0x281/0xd60 arch/x86/kvm/x86.c:8766 kvm_vcpu_ioctl+0x70b/0x9d0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3138 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl+0x101/0x150 fs/ioctl.c:763 __do_sys_ioctl fs/ioctl.c:772 [inline] __se_sys_ioctl fs/ioctl.c:770 [inline] __x64_sys_ioctl+0x47/0x60 fs/ioctl.c:770 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 16009 Comm: syz-executor.2 Not tainted 5.7.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/06/09 14:23 | https://github.com/google/ktsan.git kcsan | 7c3cd68e5d38 | 092934c1 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/05/16 13:37 | https://github.com/google/ktsan.git kcsan | 7c3cd68e5d38 | 37bccd4e | .config | console log | report | ci2-upstream-kcsan-gce |