syzbot


INFO: rcu detected stall in kvm_vcpu_ioctl
Status: upstream: reported C repro on 2018/09/11 05:54
Reported-by: syzbot+e9b1e8f574404b6e4ed3@syzkaller.appspotmail.com
First crash: 1176d, last: 24d

Cause bisection: failed (bisect log)

Fix bisection: fixed by (bisect log) [no-op commit]:
commit 5ffb90b39334c857ce365cb48fbc7486fb817b45
Author: David Hildenbrand <david@redhat.com>
Date: Tue Mar 5 23:47:21 2019 +0000

  m68k/mm: use __ClearPageReserved()

duplicates (15):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
INFO: rcu detected stall in kvm_arch_vcpu_ioctl_run syz 39 1174d 1173d 0/22 closed as dup on 2018/09/11 07:35
INFO: rcu detected stall in __check_object_size 1 1176d 1173d 0/22 closed as dup on 2018/09/11 09:27
INFO: rcu detected stall in kvm_mmu_unprotect_page syz 2 1175d 1174d 0/22 closed as dup on 2018/09/11 07:36
INFO: rcu detected stall in x86_decode_insn 2 1175d 1174d 0/22 closed as dup on 2018/09/11 09:32
INFO: rcu detected stall in kvm_vcpu_gfn_to_memslot 2 1175d 1173d 0/22 closed as dup on 2018/09/11 09:31
INFO: rcu detected stall in __kvm_read_guest_page 1 1176d 1173d 0/22 closed as dup on 2018/09/11 09:31
INFO: rcu detected stall in handle_cr 2 1174d 1174d 0/22 closed as dup on 2018/09/11 09:32
INFO: rcu detected stall in do_divide_error 2 1175d 1174d 0/22 closed as dup on 2018/09/11 09:35
INFO: rcu detected stall in handle_ept_violation 1 1176d 1173d 0/22 closed as dup on 2018/09/11 09:28
INFO: rcu detected stall in vmx_get_cpl 1 1175d 1174d 0/22 closed as dup on 2018/09/11 09:34
INFO: rcu detected stall in tdp_page_fault 5 1174d 1174d 0/22 closed as dup on 2018/09/11 09:34
INFO: rcu detected stall in bsearch 1 1174d 1174d 0/22 closed as dup on 2018/09/11 09:33
INFO: rcu detected stall in vmx_handle_exit 5 1175d 1173d 0/22 closed as dup on 2018/09/11 09:31
INFO: rcu detected stall in handle_abnormal_pfn 1 1174d 1174d 0/22 closed as dup on 2018/09/11 09:35
INFO: rcu detected stall in x86_emulate_instruction 1 1174d 1174d 0/22 closed as dup on 2018/09/11 09:32
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: rcu detected stall in kvm_vcpu_ioctl C error 46 31d 687d 0/1 upstream: reported C repro on 2020/01/10 19:56
linux-4.14 INFO: rcu detected stall in kvm_vcpu_ioctl C error 12 588d 745d 0/1 upstream: reported C repro on 2019/11/13 08:08
linux-4.19 BUG: soft lockup in kvm_vcpu_ioctl C error 2 210d 213d 0/1 upstream: reported C repro on 2021/04/28 21:34
Patch testing requests:
Created Duration User Patch Repo Result
2020/09/15 05:03 12m brookebasile@gmail.com upstream report log

Sample crash report:

Crashes (250):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2021/10/23 17:07 upstream 9c0c4d24ac00 282f03fb .config log report syz C INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/09/14 21:43 linux-next 815c5020b5ab 07e953c1 .config log report syz C INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2020/03/20 06:32 linux-next 770fbb32d34e 2c31c529 .config log report syz C
ci-upstream-kasan-gce-smack-root 2018/09/14 17:47 upstream a06b0c82a049 a343a400 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2018/10/21 16:58 linux-next 8c60c36d0b8c ecb386fe .config log report syz
ci-upstream-linux-next-kasan-gce-root 2018/09/14 03:39 linux-next f8dcd0279214 19e9088b .config log report syz
ci-upstream-kasan-gce-smack-root 2021/11/03 04:11 upstream bfc484fe6abb 17f3edd2 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/11/02 10:49 upstream e66435936756 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/11/02 09:11 upstream e66435936756 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/11/02 06:20 upstream e66435936756 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/11/02 04:08 upstream e66435936756 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/11/01 12:56 upstream 8bb7eca972ad 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/31 18:17 upstream 180eca540ae0 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/31 12:06 upstream 180eca540ae0 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/30 21:08 upstream 119c85055d86 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/30 18:33 upstream 119c85055d86 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/30 14:48 upstream a379fbbcb88b 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/30 10:20 upstream a379fbbcb88b 098b5d53 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/29 00:21 upstream 411a44c24a56 be531bb4 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/28 14:03 upstream 1fc596a56b33 be531bb4 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/28 04:19 upstream 1fc596a56b33 be531bb4 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/27 13:43 upstream d25f27432f80 373bf66b .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/26 02:25 upstream c2b43854aad9 c1132b49 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/25 22:35 upstream c2b43854aad9 4f0000ee .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/24 22:20 upstream 6c62666d8879 282f03fb .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/24 11:35 upstream 9c0c4d24ac00 282f03fb .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/23 15:27 upstream 9c0c4d24ac00 282f03fb .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/22 14:52 upstream 2f111a6fd5b5 55f90bc6 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/22 07:26 upstream 2f111a6fd5b5 55f90bc6 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/22 00:05 upstream 2f111a6fd5b5 c5cb7da8 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/21 14:56 upstream 2f111a6fd5b5 c5cb7da8 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/21 00:58 upstream 8e37395c3a5d f111d03b .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/20 22:29 upstream 8e37395c3a5d f111d03b .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/20 10:09 upstream d9abdee5fd5a 418a00eb .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/20 08:05 upstream d9abdee5fd5a 466b7db1 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/16 21:16 upstream 304040fb4909 0c5d9412 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/15 07:30 upstream ec681c53f8d2 aab7690b .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/14 17:28 upstream 26d657410983 5462d470 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/12 11:56 upstream fa5878760579 838e7e2c .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/12 04:25 upstream 64570fbc14f8 838e7e2c .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/12 01:11 upstream 64570fbc14f8 838e7e2c .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/09 11:35 upstream 5d6ab0bb408f 838e7e2c .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-selinux-root 2021/10/06 21:51 upstream 60a9483534ed 62ee0987 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-smack-root 2021/10/06 00:41 upstream f6274b06e326 0a63fd36 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/17 10:59 linux-next 7c832d2f9b95 0c5d9412 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/17 05:30 linux-next 7c832d2f9b95 0c5d9412 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/16 23:49 linux-next 7c832d2f9b95 0c5d9412 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/11 19:44 linux-next d3134eb5de85 838e7e2c .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/11 08:39 linux-next d3134eb5de85 838e7e2c .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/09 13:17 linux-next 683f29b781ae 838e7e2c .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/08 03:11 linux-next f8dc23b3dc0c efe0f24d .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/07 08:40 linux-next f8dc23b3dc0c 62ee0987 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/06 16:01 linux-next 0dda5ee37364 0a63fd36 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/03 10:02 linux-next a25006a77348 db0f5787 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/02 19:07 linux-next a25006a77348 db0f5787 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-linux-next-kasan-gce-root 2021/10/01 15:17 linux-next a25006a77348 cc80db95 .config log report info INFO: rcu detected stall in kvm_vcpu_ioctl
ci-upstream-kasan-gce-root 2020/07/07 22:48 upstream 7cc2a8ea1048 51095195 .config log report
ci-upstream-kasan-gce-smack-root 2020/05/23 20:06 upstream 444565650a5f 9682898d .config log report
ci-upstream-kasan-gce 2019/01/23 17:45 upstream 333478a7eb21 7cf3249c .config log report
ci-upstream-kasan-gce-selinux-root 2018/09/08 01:57 upstream 3d0e7a9e00fd 6b5120a4 .config log report