input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2 input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input4 BUG: unable to handle page fault for address: ffffebde00000008 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 78 Comm: kworker/1:2 Not tainted 5.19.0-syzkaller-14135-g6c833c0581f1-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Workqueue: events cache_reap RIP: 0010:_compound_head include/linux/page-flags.h:253 [inline] RIP: 0010:virt_to_folio include/linux/mm.h:858 [inline] RIP: 0010:virt_to_slab mm/slab.h:175 [inline] RIP: 0010:free_block+0xc4/0x2d0 mm/slab.c:3317 Code: b8 00 00 00 80 7f 77 00 00 48 81 fd 00 00 00 80 72 07 48 8b 05 dd cd 70 04 48 01 e8 48 2d 00 00 00 80 48 c1 e8 06 48 83 e0 c0 <48> 8b 4c 06 08 f6 c1 01 0f 85 47 01 00 00 48 01 f0 0f 1f 44 00 00 RSP: 0018:ffffc900003ebc80 EFLAGS: 00010006 RAX: 000001de00000000 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 0000000000000001 RSI: ffffea0000000000 RDI: ffff888100cf06c0 RBP: 0000000000000000 R08: ffffc900003ebcf8 R09: 0000000000000000 R10: ffff888100f70a40 R11: 0001ffffffffffff R12: ffff888100cf06c0 R13: ffffc900003ebcf8 R14: ffffc900003ebcf8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffebde00000008 CR3: 000000010678f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drain_array_locked mm/slab.c:2130 [inline] drain_array+0xb8/0x1a0 mm/slab.c:3958 cache_reap+0x238/0x330 mm/slab.c:4010 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289 worker_thread+0x618/0xa70 kernel/workqueue.c:2436 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 Modules linked in: CR2: ffffebde00000008 ---[ end trace 0000000000000000 ]--- RIP: 0010:_compound_head include/linux/page-flags.h:253 [inline] RIP: 0010:virt_to_folio include/linux/mm.h:858 [inline] RIP: 0010:virt_to_slab mm/slab.h:175 [inline] RIP: 0010:free_block+0xc4/0x2d0 mm/slab.c:3317 Code: b8 00 00 00 80 7f 77 00 00 48 81 fd 00 00 00 80 72 07 48 8b 05 dd cd 70 04 48 01 e8 48 2d 00 00 00 80 48 c1 e8 06 48 83 e0 c0 <48> 8b 4c 06 08 f6 c1 01 0f 85 47 01 00 00 48 01 f0 0f 1f 44 00 00 RSP: 0018:ffffc900003ebc80 EFLAGS: 00010006 RAX: 000001de00000000 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 0000000000000001 RSI: ffffea0000000000 RDI: ffff888100cf06c0 RBP: 0000000000000000 R08: ffffc900003ebcf8 R09: 0000000000000000 R10: ffff888100f70a40 R11: 0001ffffffffffff R12: ffff888100cf06c0 R13: ffffc900003ebcf8 R14: ffffc900003ebcf8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffebde00000008 CR3: 000000010678f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: b8 00 00 00 80 mov $0x80000000,%eax 5: 7f 77 jg 0x7e 7: 00 00 add %al,(%rax) 9: 48 81 fd 00 00 00 80 cmp $0xffffffff80000000,%rbp 10: 72 07 jb 0x19 12: 48 8b 05 dd cd 70 04 mov 0x470cddd(%rip),%rax # 0x470cdf6 19: 48 01 e8 add %rbp,%rax 1c: 48 2d 00 00 00 80 sub $0xffffffff80000000,%rax 22: 48 c1 e8 06 shr $0x6,%rax 26: 48 83 e0 c0 and $0xffffffffffffffc0,%rax * 2a: 48 8b 4c 06 08 mov 0x8(%rsi,%rax,1),%rcx <-- trapping instruction 2f: f6 c1 01 test $0x1,%cl 32: 0f 85 47 01 00 00 jne 0x17f 38: 48 01 f0 add %rsi,%rax 3b: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)