syzbot


upstream boot error: WARNING in copy_process

Status: internal: reported on 2022/08/14 05:04
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 9993a4f989c7 virtio: Revert "virtio: find_vqs() add arg sizes"
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-riscv64]
First crash: 176d, last: 173d

Sample crash report:
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled)
WARNING: CPU: 0 PID: 55 at kernel/fork.c:2114 copy_process+0x19f4/0x4010 kernel/fork.c:2114
Modules linked in:
CPU: 0 PID: 55 Comm: kworker/u4:4 Not tainted 6.0.0-rc1-syzkaller-00017-g3cc40a443a04 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: events_unbound call_usermodehelper_exec_work

RIP: 0010:copy_process+0x19f4/0x4010 kernel/fork.c:2114
Code: 24 18 85 db 74 38 e8 7b d1 38 00 e9 7a 15 00 00 e8 71 d1 38 00 48 c7 c7 80 f4 ab 8a 48 c7 c6 c0 f4 ab 8a 31 c0 e8 0c a9 00 00 <0f> 0b 48 8d 9c 24 60 01 00 00 4c 8b 64 24 68 e9 cc ef ff ff 48 8b
RSP: 0000:ffffc900015677a0 EFLAGS: 00010246

RAX: 466cfcbf66fd4100 RBX: 0000000000000000 RCX: ffff888018881d80
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90001567990 R08: ffffffff816d5c7d R09: fffff520002ace71
R10: fffff520002ace71 R11: 1ffff920002ace70 R12: 1ffff920002acf1c
R13: ffff888020d98000 R14: 0000000000000000 R15: 1ffff110041b3005
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000ca8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>

Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-upstream-kasan-gce-smack-root 2022/08/17 02:00 upstream 3cc40a443a04 7a7cb304 .config console log report upstream boot error: WARNING in copy_process
ci-upstream-kasan-gce 2022/08/14 20:07 upstream 5d6a0f4da927 8dfcaa3d .config console log report upstream boot error: WARNING in copy_process
ci-upstream-kasan-gce-root 2022/08/14 05:03 upstream aea23e7c464b 8dfcaa3d .config console log report upstream boot error: WARNING in copy_process
ci-upstream-kasan-gce-386 2022/08/16 05:13 upstream 568035b01cfb 7a7cb304 .config console log report upstream boot error: WARNING in copy_process
ci-upstream-kasan-gce-386 2022/08/14 20:59 upstream 5d6a0f4da927 8dfcaa3d .config console log report upstream boot error: WARNING in copy_process
* Struck through repros no longer work on HEAD.