Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f] CPU: 0 UID: 0 PID: 11563 Comm: kbnepd bnep0 Not tainted 6.13.0-rc6-syzkaller-00262-gb62cef9a5c67 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:klist_put+0x4d/0x1b0 lib/klist.c:212 Code: c1 ea 03 80 3c 02 00 0f 85 5f 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 23 49 83 e4 fe 49 8d 7c 24 58 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 2e 01 00 00 4c 89 e7 4d 8b 74 24 58 e8 ac d0 0c RSP: 0018:ffffc90003e8f9c0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff88803465a060 RCX: ffffffff8239c13d RDX: 000000000000000b RSI: ffffffff8b1f92c5 RDI: 0000000000000058 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8180f719 R12: 0000000000000000 R13: 0000000000000001 R14: ffff888024ff4b00 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff417a2cbd0 CR3: 000000007ae00000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: device_del+0x1d9/0x9f0 drivers/base/core.c:3831 unregister_netdevice_many_notify+0x105d/0x1e60 net/core/dev.c:11581 unregister_netdevice_many net/core/dev.c:11609 [inline] unregister_netdevice_queue+0x307/0x3f0 net/core/dev.c:11481 unregister_netdevice include/linux/netdevice.h:3192 [inline] unregister_netdev+0x1c/0x30 net/core/dev.c:11627 bnep_session+0x21b6/0x2ca0 net/bluetooth/bnep/core.c:525 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:klist_put+0x4d/0x1b0 lib/klist.c:212 Code: c1 ea 03 80 3c 02 00 0f 85 5f 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 23 49 83 e4 fe 49 8d 7c 24 58 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 2e 01 00 00 4c 89 e7 4d 8b 74 24 58 e8 ac d0 0c RSP: 0018:ffffc90003e8f9c0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff88803465a060 RCX: ffffffff8239c13d RDX: 000000000000000b RSI: ffffffff8b1f92c5 RDI: 0000000000000058 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8180f719 R12: 0000000000000000 R13: 0000000000000001 R14: ffff888024ff4b00 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff417a2cbd0 CR3: 00000000322ba000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c1 ea 03 shr $0x3,%edx 3: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 7: 0f 85 5f 01 00 00 jne 0x16c d: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 14: fc ff df 17: 4c 8b 23 mov (%rbx),%r12 1a: 49 83 e4 fe and $0xfffffffffffffffe,%r12 1e: 49 8d 7c 24 58 lea 0x58(%r12),%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 2e 01 00 00 jne 0x162 34: 4c 89 e7 mov %r12,%rdi 37: 4d 8b 74 24 58 mov 0x58(%r12),%r14 3c: e8 .byte 0xe8 3d: ac lods %ds:(%rsi),%al 3e: d0 .byte 0xd0 3f: 0c .byte 0xc