Oops: general protection fault, probably for non-canonical address 0xdffffc000000001e: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x00000000000000f0-0x00000000000000f7] CPU: 0 UID: 0 PID: 15297 Comm: syz.6.4071 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 RIP: 0010:do_rebind drivers/usb/usbip/stub_main.c:204 [inline] RIP: 0010:rebind_store+0x147/0x2d0 drivers/usb/usbip/stub_main.c:264 Code: 53 01 00 00 48 89 d8 48 c1 e0 07 4c 8b b0 d0 4b a5 9b 48 b8 00 00 00 00 00 fc ff df 49 8d be f0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 30 01 00 00 4d 8b be f0 00 00 00 4d 85 ff 74 3c RSP: 0018:ffffc9000443fc30 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000001e RSI: 0000000000000004 RDI: 00000000000000f0 RBP: ffffffff9ba54bd0 R08: 0000000000000000 R09: fffffbfff374a97c R10: ffffffff9ba54be3 R11: 0000000000000001 R12: 0000000000000001 R13: ffff888035a1da60 R14: 0000000000000000 R15: ffff88802c13c800 FS: 00007f9f2a99f6c0(0000) GS:ffff888123ddc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2d5e6b CR3: 0000000075ee1000 CR4: 00000000003526f0 Call Trace: drv_attr_store+0x74/0xb0 drivers/base/bus.c:125 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6ac/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9f29b9de99 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9f2a99f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f29e25fa0 RCX: 00007f9f29b9de99 RDX: 0000000000000001 RSI: 0000200000000200 RDI: 0000000000000003 RBP: 00007f9f29c33eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9f29e26038 R14: 00007f9f29e25fa0 R15: 00007ffd39183ac8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_rebind drivers/usb/usbip/stub_main.c:204 [inline] RIP: 0010:rebind_store+0x147/0x2d0 drivers/usb/usbip/stub_main.c:264 Code: 53 01 00 00 48 89 d8 48 c1 e0 07 4c 8b b0 d0 4b a5 9b 48 b8 00 00 00 00 00 fc ff df 49 8d be f0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 30 01 00 00 4d 8b be f0 00 00 00 4d 85 ff 74 3c RSP: 0018:ffffc9000443fc30 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000001e RSI: 0000000000000004 RDI: 00000000000000f0 RBP: ffffffff9ba54bd0 R08: 0000000000000000 R09: fffffbfff374a97c R10: ffffffff9ba54be3 R11: 0000000000000001 R12: 0000000000000001 R13: ffff888035a1da60 R14: 0000000000000000 R15: ffff88802c13c800 FS: 00007f9f2a99f6c0(0000) GS:ffff888123ddc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f74907ef4b8 CR3: 0000000075ee1000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 53 push %rbx 1: 01 00 add %eax,(%rax) 3: 00 48 89 add %cl,-0x77(%rax) 6: d8 48 c1 fmuls -0x3f(%rax) 9: e0 07 loopne 0x12 b: 4c 8b b0 d0 4b a5 9b mov -0x645ab430(%rax),%r14 12: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 19: fc ff df 1c: 49 8d be f0 00 00 00 lea 0xf0(%r14),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 30 01 00 00 jne 0x164 34: 4d 8b be f0 00 00 00 mov 0xf0(%r14),%r15 3b: 4d 85 ff test %r15,%r15 3e: 74 3c je 0x7c