general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 5814 Comm: kworker/0:3 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: events work_for_cpu_fn RIP: 0010:software_node_register+0x30/0x1f0 drivers/base/swnode.c:890 Code: 57 41 56 41 55 41 54 53 50 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 1f 58 36 fc 4c 8d 63 08 4c 89 e0 48 c1 e8 03 48 89 04 24 <42> 80 3c 30 00 74 08 4c 89 e7 e8 71 da 8e fc 49 8b 2c 24 48 85 ed RSP: 0018:ffffc90004bff980 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff888077fc8000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90004bffb50 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000008 R13: ffff88807f045010 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d62421c CR3: 000000000cf32000 CR4: 00000000003506f0 Call Trace: device_add_software_node+0x1a0/0x2f0 drivers/base/swnode.c:978 dwc3_pci_quirks drivers/usb/dwc3/dwc3-pci.c:311 [inline] dwc3_pci_probe+0x543/0xa90 drivers/usb/dwc3/dwc3-pci.c:376 local_pci_probe+0xc9/0x150 drivers/pci/pci-driver.c:324 work_for_cpu_fn+0x54/0x80 kernel/workqueue.c:5704 process_one_work kernel/workqueue.c:2657 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:software_node_register+0x30/0x1f0 drivers/base/swnode.c:890 Code: 57 41 56 41 55 41 54 53 50 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 1f 58 36 fc 4c 8d 63 08 4c 89 e0 48 c1 e8 03 48 89 04 24 <42> 80 3c 30 00 74 08 4c 89 e7 e8 71 da 8e fc 49 8b 2c 24 48 85 ed RSP: 0018:ffffc90004bff980 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff888077fc8000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90004bffb50 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000008 R13: ffff88807f045010 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d62421c CR3: 0000000029580000 CR4: 00000000003506f0 ---------------- Code disassembly (best guess): 0: 57 push %rdi 1: 41 56 push %r14 3: 41 55 push %r13 5: 41 54 push %r12 7: 53 push %rbx 8: 50 push %rax 9: 48 89 fb mov %rdi,%rbx c: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14 13: fc ff df 16: e8 1f 58 36 fc call 0xfc36583a 1b: 4c 8d 63 08 lea 0x8(%rbx),%r12 1f: 4c 89 e0 mov %r12,%rax 22: 48 c1 e8 03 shr $0x3,%rax 26: 48 89 04 24 mov %rax,(%rsp) * 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 e7 mov %r12,%rdi 34: e8 71 da 8e fc call 0xfc8edaaa 39: 49 8b 2c 24 mov (%r12),%rbp 3d: 48 85 ed test %rbp,%rbp