BUG: unable to handle page fault for address: ffffc90004e8a330
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 12000067
P4D 12000067
PUD 121c9067
PMD 1c92a067
PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5012 Comm: kworker/u4:10 Not tainted 6.0.0-rc1-syzkaller-00025-g274a2eebf80c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline]
RIP: 0010:atomic_read include/linux/atomic/atomic-instrumented.h:28 [inline]
RIP: 0010:kvm_arch_hardware_enable+0x1d1/0x6d0 arch/x86/kvm/x86.c:11847
Code: 89 5c 24 38 4c 8d 73 f0 4c 89 f7 be 04 00 00 00 e8 24 4a cc 00 4d 89 f5 49 c1 ed 03 43 0f b6 44 3d 00 84 c0 0f 85 08 02 00 00 <41> 8b 06 ff c8 48 63 d0 4c 89 64 24 10 4c 89 e7 48 8d 74 24 60 b9
RSP: 0018:ffffc90000007e60 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffffc90004e8a340 RCX: ffffffff8110f0c2
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90004e8a330
RBP: ffffc90000007f30 R08: dffffc0000000000 R09: fffff520009d1466
R10: fffff520009d1467 R11: 1ffff920009d1466 R12: ffffc90004e8a240
R13: 1ffff920009d1466 R14: ffffc90004e8a330 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90004e8a330 CR3: 0000000074549000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hardware_enable_nolock+0xa1/0x140 arch/x86/kvm/../../../virt/kvm/kvm_main.c:5007
__flush_smp_call_function_queue+0x2bc/0xcc0 kernel/smp.c:631
__sysvec_call_function_single+0x62/0x70 arch/x86/kernel/smp.c:248
sysvec_call_function_single+0x8c/0xb0 arch/x86/kernel/smp.c:243
asm_sysvec_call_function_single+0x16/0x20
RIP: 0010:batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:409 [inline]
RIP: 0010:batadv_nc_worker+0x14e/0x5b0 net/batman-adv/network-coding.c:719
Code: c7 c2 c0 90 e1 8b e8 81 6c 56 f7 90 4b 8d 5c fd 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 05 fa c9 f7 48 8b 1b <48> 85 db 74 09 48 81 c3 38 fe ff ff 75 19 e8 2f 5b 76 f7 eb 5c 66
RSP: 0018:ffffc90004767bd8 EFLAGS: 00000246
RAX: 1ffff1100ec8e228 RBX: 0000000000000000 RCX: ffff888024aa8000
RDX: 0000000000000000 RSI: ffffffff8b0a57c0 RDI: ffffffff8b0a5780
RBP: ffff88807e550c80 R08: dffffc0000000000 R09: fffffbfff1ff3a09
R10: fffffbfff1ff3a09 R11: 1ffffffff1ff3a08 R12: dffffc0000000000
R13: ffff888076470000 R14: ffff88805ef2f5d0 R15: 0000000000000228
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Modules linked in:
CR2: ffffc90004e8a330
---[ end trace 0000000000000000 ]---
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline]
RIP: 0010:atomic_read include/linux/atomic/atomic-instrumented.h:28 [inline]
RIP: 0010:kvm_arch_hardware_enable+0x1d1/0x6d0 arch/x86/kvm/x86.c:11847
Code: 89 5c 24 38 4c 8d 73 f0 4c 89 f7 be 04 00 00 00 e8 24 4a cc 00 4d 89 f5 49 c1 ed 03 43 0f b6 44 3d 00 84 c0 0f 85 08 02 00 00 <41> 8b 06 ff c8 48 63 d0 4c 89 64 24 10 4c 89 e7 48 8d 74 24 60 b9
RSP: 0018:ffffc90000007e60 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffffc90004e8a340 RCX: ffffffff8110f0c2
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90004e8a330
RBP: ffffc90000007f30 R08: dffffc0000000000 R09: fffff520009d1466
R10: fffff520009d1467 R11: 1ffff920009d1466 R12: ffffc90004e8a240
R13: 1ffff920009d1466 R14: ffffc90004e8a330 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90004e8a330 CR3: 0000000074549000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 89 5c 24 38 mov %ebx,0x38(%rsp)
4: 4c 8d 73 f0 lea -0x10(%rbx),%r14
8: 4c 89 f7 mov %r14,%rdi
b: be 04 00 00 00 mov $0x4,%esi
10: e8 24 4a cc 00 callq 0xcc4a39
15: 4d 89 f5 mov %r14,%r13
18: 49 c1 ed 03 shr $0x3,%r13
1c: 43 0f b6 44 3d 00 movzbl 0x0(%r13,%r15,1),%eax
22: 84 c0 test %al,%al
24: 0f 85 08 02 00 00 jne 0x232
* 2a: 41 8b 06 mov (%r14),%eax <-- trapping instruction
2d: ff c8 dec %eax
2f: 48 63 d0 movslq %eax,%rdx
32: 4c 89 64 24 10 mov %r12,0x10(%rsp)
37: 4c 89 e7 mov %r12,%rdi
3a: 48 8d 74 24 60 lea 0x60(%rsp),%rsi
3f: b9 .byte 0xb9