Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in kvm_set_memslot / mark_mmio_spte (2) kvm | 5 | 1656d | 1703d | 0/28 | auto-closed as invalid on 2020/11/10 01:04 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in kvm_set_memslot / mark_mmio_spte (2) kvm | 5 | 1656d | 1703d | 0/28 | auto-closed as invalid on 2020/11/10 01:04 |
================================================================== BUG: KCSAN: data-race in kvm_set_memslot / mark_mmio_spte write to 0xffff88809f350000 of 8 bytes by task 29856 on cpu 1: install_new_memslots arch/x86/kvm/../../../virt/kvm/kvm_main.c:1092 [inline] kvm_set_memslot+0x866/0x910 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1168 __kvm_set_memory_region+0x708/0x910 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1314 kvm_set_memory_region arch/x86/kvm/../../../virt/kvm/kvm_main.c:1335 [inline] kvm_vm_ioctl_set_memory_region arch/x86/kvm/../../../virt/kvm/kvm_main.c:1347 [inline] kvm_vm_ioctl+0x81d/0x17c0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3639 vfs_ioctl fs/ioctl.c:48 [inline] ksys_ioctl fs/ioctl.c:753 [inline] __do_sys_ioctl fs/ioctl.c:762 [inline] __se_sys_ioctl+0xc9/0x130 fs/ioctl.c:760 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:760 do_syscall_64+0x51/0xb0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88809f350000 of 8 bytes by task 29846 on cpu 0: make_mmio_spte arch/x86/kvm/mmu/mmu.c:452 [inline] mark_mmio_spte+0x60/0x230 arch/x86/kvm/mmu/mmu.c:468 set_mmio_spte arch/x86/kvm/mmu/mmu.c:496 [inline] set_spte+0x629/0x630 arch/x86/kvm/mmu/mmu.c:2999 mmu_set_spte+0x160/0xa00 arch/x86/kvm/mmu/mmu.c:3117 __direct_map+0x633/0x950 arch/x86/kvm/mmu/mmu.c:3365 direct_page_fault+0x314/0x670 arch/x86/kvm/mmu/mmu.c:4136 kvm_tdp_page_fault+0x92/0xa0 arch/x86/kvm/mmu/mmu.c:4208 kvm_mmu_do_page_fault arch/x86/kvm/mmu.h:115 [inline] kvm_mmu_page_fault+0xca/0x410 arch/x86/kvm/mmu/mmu.c:5422 handle_ept_misconfig+0x99/0x230 arch/x86/kvm/vmx/vmx.c:5332 vmx_handle_exit+0x58b/0xb90 arch/x86/kvm/vmx/vmx.c:6093 vcpu_enter_guest+0x1ca9/0x2760 arch/x86/kvm/x86.c:8594 vcpu_run+0x27e/0x790 arch/x86/kvm/x86.c:8659 kvm_arch_vcpu_ioctl_run+0x38d/0x6a0 arch/x86/kvm/x86.c:8880 kvm_vcpu_ioctl+0x565/0x950 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3166 vfs_ioctl fs/ioctl.c:48 [inline] ksys_ioctl fs/ioctl.c:753 [inline] __do_sys_ioctl fs/ioctl.c:762 [inline] __se_sys_ioctl+0xc9/0x130 fs/ioctl.c:760 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:760 do_syscall_64+0x51/0xb0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 29846 Comm: syz-executor.5 Not tainted 5.8.0-rc3-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/07/01 14:25 | upstream | 7c30b859a947 | 39acb39d | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/06/23 20:30 | upstream | 3e08a95294a4 | 6930bbef | .config | console log | report | ci2-upstream-kcsan-gce |