BUG: unable to handle page fault for address: fffffffffffffff8 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 6212067 P4D 6212067 PUD 6214067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 2401 Comm: syz.6.393 Not tainted 5.10.240-syzkaller-1008085-g1154f779f3f3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:swake_up_locked+0x57/0x120 kernel/sched/swait.c:30 Code: 89 f7 e8 7c 3e 54 00 49 8b 1e 4c 39 f3 0f 84 ca 00 00 00 48 8d 7b f8 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 59 3e 54 00 <48> 8b 7b f8 e8 00 70 fa ff 48 89 df e8 18 df f3 00 84 c0 74 6a 48 RSP: 0018:ffffc90001067d48 EFLAGS: 00010046 RAX: 1fffffffffffffff RBX: 0000000000000000 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: fffffffffffffff8 RBP: ffffc90001067d70 R08: 0000000000000004 R09: 0000000000000003 R10: fffff5200020cf9c R11: 1ffff9200020cf9c R12: dffffc0000000000 R13: 1ffff92000220f56 R14: ffffc90001107ac0 R15: ffffc90001107ab0 FS: 00007f9f70b516c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff8 CR3: 0000000107df6000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: complete+0x5e/0xb0 kernel/sched/completion.c:36 uinput_flush_requests drivers/input/misc/uinput.c:213 [inline] uinput_destroy_device+0x129/0x8e0 drivers/input/misc/uinput.c:298 uinput_release+0x3e/0x50 drivers/input/misc/uinput.c:758 __fput+0x2fb/0x770 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x127/0x190 kernel/task_work.c:189 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline] syscall_exit_to_user_mode+0x68/0x90 kernel/entry/common.c:274 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f9f710e0b69 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9f70b51038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007f9f71307fa0 RCX: 00007f9f710e0b69 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000007 RBP: 00007f9f71163df1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f71307fa0 R15: 00007ffebba27fa8 Modules linked in: CR2: fffffffffffffff8 ---[ end trace f5ddf01c225eeb2c ]--- RIP: 0010:swake_up_locked+0x57/0x120 kernel/sched/swait.c:30 Code: 89 f7 e8 7c 3e 54 00 49 8b 1e 4c 39 f3 0f 84 ca 00 00 00 48 8d 7b f8 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 59 3e 54 00 <48> 8b 7b f8 e8 00 70 fa ff 48 89 df e8 18 df f3 00 84 c0 74 6a 48 RSP: 0018:ffffc90001067d48 EFLAGS: 00010046 RAX: 1fffffffffffffff RBX: 0000000000000000 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: fffffffffffffff8 RBP: ffffc90001067d70 R08: 0000000000000004 R09: 0000000000000003 R10: fffff5200020cf9c R11: 1ffff9200020cf9c R12: dffffc0000000000 R13: 1ffff92000220f56 R14: ffffc90001107ac0 R15: ffffc90001107ab0 FS: 00007f9f70b516c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff8 CR3: 0000000107df6000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 89 f7 mov %esi,%edi 2: e8 7c 3e 54 00 call 0x543e83 7: 49 8b 1e mov (%r14),%rbx a: 4c 39 f3 cmp %r14,%rbx d: 0f 84 ca 00 00 00 je 0xdd 13: 48 8d 7b f8 lea -0x8(%rbx),%rdi 17: 48 89 f8 mov %rdi,%rax 1a: 48 c1 e8 03 shr $0x3,%rax 1e: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) 23: 74 05 je 0x2a 25: e8 59 3e 54 00 call 0x543e83 * 2a: 48 8b 7b f8 mov -0x8(%rbx),%rdi <-- trapping instruction 2e: e8 00 70 fa ff call 0xfffa7033 33: 48 89 df mov %rbx,%rdi 36: e8 18 df f3 00 call 0xf3df53 3b: 84 c0 test %al,%al 3d: 74 6a je 0xa9 3f: 48 rex.W