Unable to handle kernel paging request at virtual address dfff80000000000b KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f] Mem abort info: ESR = 0x0000000096000005 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x05: level 1 translation fault Data abort info: ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [dfff80000000000b] address between user and kernel address ranges Internal error: Oops: 0000000096000005 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 7074 Comm: kbnepd bnep0 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : klist_put+0x50/0x118 lib/klist.c:212 lr : klist_put+0x2c/0x118 lib/klist.c:210 sp : ffff80009a7c77c0 x29: ffff80009a7c77c0 x28: dfff800000000000 x27: 1fffe0001b0be3a5 x26: ffff7000134f8f08 x25: ffff0000f47a4ce0 x24: 1fffe0001b20b60c x23: dfff800000000000 x22: ffff0000d6252758 x21: 0000000000000001 x20: 0000000000000000 x19: ffff0000d905b060 x18: 1fffe00035c20e20 x17: ffff800084c26f04 x16: ffff80008244e7e4 x15: ffff80008247f9e4 x14: ffff800080ebd810 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 000000000000000b x7 : 0000000000000000 x6 : ffff800080b5d940 x5 : ffff0000c9b01f80 x4 : 0000000000000008 x3 : ffff800080ead548 x2 : 0000000000000001 x1 : ffff0000d85f1d00 x0 : 0000000000000058 Call trace: klist_put+0x50/0x118 lib/klist.c:212 (P) klist_del+0x24/0x34 lib/klist.c:230 device_del+0x180/0x710 drivers/base/core.c:3872 netdev_unregister_kobject+0x2b4/0x3ac net/core/net-sysfs.c:2314 unregister_netdevice_many_notify+0x13c0/0x18d8 net/core/dev.c:12453 unregister_netdevice_many net/core/dev.c:12481 [inline] unregister_netdevice_queue+0x270/0x308 net/core/dev.c:12291 unregister_netdevice include/linux/netdevice.h:3444 [inline] unregister_netdev+0x2c/0x70 net/core/dev.c:12499 bnep_session+0x20c0/0x2298 net/bluetooth/bnep/core.c:525 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 Code: f9400268 927ff914 91016280 d343fc08 (38776908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f9400268 ldr x8, [x19] 4: 927ff914 and x20, x8, #0xfffffffffffffffe 8: 91016280 add x0, x20, #0x58 c: d343fc08 lsr x8, x0, #3 * 10: 38776908 ldrb w8, [x8, x23] <-- trapping instruction