Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in emulator_read_write_onepage / install_new_memslots (2) kvm | 2 | 1431d | 1455d | 0/26 | closed as invalid on 2020/06/18 14:13 |
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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 (2) kvm | 2 | 1431d | 1455d | 0/26 | closed as invalid on 2020/06/18 14:13 |
================================================================== BUG: KCSAN: data-race in emulator_read_write_onepage / install_new_memslots write to 0xffff88809f7e0000 of 8 bytes by task 12907 on cpu 0: install_new_memslots+0xef/0x130 arch/x86/kvm/../../../virt/kvm/kvm_main.c:984 __kvm_set_memory_region+0xeea/0x1380 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1143 kvm_set_memory_region+0x36/0x60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1166 kvm_vm_ioctl_set_memory_region arch/x86/kvm/../../../virt/kvm/kvm_main.c:1178 [inline] kvm_vm_ioctl+0x6f8/0x12e0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3306 vfs_ioctl fs/ioctl.c:47 [inline] file_ioctl fs/ioctl.c:545 [inline] do_vfs_ioctl+0x84f/0xcf0 fs/ioctl.c:732 ksys_ioctl+0xbd/0xe0 fs/ioctl.c:749 __do_sys_ioctl fs/ioctl.c:756 [inline] __se_sys_ioctl fs/ioctl.c:754 [inline] __x64_sys_ioctl+0x4c/0x60 fs/ioctl.c:754 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88809f7e0000 of 8 bytes by task 12913 on cpu 1: vcpu_match_mmio_gen arch/x86/kvm/x86.h:206 [inline] vcpu_match_mmio_gva arch/x86/kvm/x86.h:225 [inline] vcpu_mmio_gva_to_gpa arch/x86/kvm/x86.c:5540 [inline] emulator_read_write_onepage+0x1dc/0x750 arch/x86/kvm/x86.c:5666 emulator_read_write+0x178/0x330 arch/x86/kvm/x86.c:5726 emulator_read_emulated+0x45/0x60 arch/x86/kvm/x86.c:5753 read_emulated arch/x86/kvm/emulate.c:1424 [inline] segmented_read+0x170/0x220 arch/x86/kvm/emulate.c:1448 x86_emulate_insn+0x12f8/0x28e0 arch/x86/kvm/emulate.c:5616 x86_emulate_instruction+0x498/0x1120 arch/x86/kvm/x86.c:6741 kvm_mmu_page_fault+0x233/0xbc0 arch/x86/kvm/mmu/mmu.c:5589 handle_ept_violation+0x1e5/0x340 arch/x86/kvm/vmx/vmx.c:5163 vmx_handle_exit+0x1c2/0xdb0 arch/x86/kvm/vmx/vmx.c:5921 vcpu_enter_guest+0xc25/0x3860 arch/x86/kvm/x86.c:8290 vcpu_run arch/x86/kvm/x86.c:8354 [inline] kvm_arch_vcpu_ioctl_run+0x2a8/0xdf0 arch/x86/kvm/x86.c:8561 kvm_vcpu_ioctl+0x758/0xa30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2847 vfs_ioctl fs/ioctl.c:47 [inline] file_ioctl fs/ioctl.c:545 [inline] do_vfs_ioctl+0x84f/0xcf0 fs/ioctl.c:732 ksys_ioctl+0xbd/0xe0 fs/ioctl.c:749 __do_sys_ioctl fs/ioctl.c:756 [inline] __se_sys_ioctl fs/ioctl.c:754 [inline] __x64_sys_ioctl+0x4c/0x60 fs/ioctl.c:754 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 12913 Comm: syz-executor.3 Not tainted 5.5.0-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/12/15 22:37 | https://github.com/google/ktsan.git kcsan | 245a43005292 | eef6e580 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/12/03 00:04 | https://github.com/google/ktsan.git kcsan | ef798c30ba4e | ab342da3 | .config | console log | report | ci2-upstream-kcsan-gce |