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: 1 UID: 0 PID: 7203 Comm: kbnepd bnep0 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : klist_put+0x50/0x11c lib/klist.c:212 lr : klist_put+0x2c/0x11c lib/klist.c:210 sp : ffff8000935877e0 x29: ffff8000935877e0 x28: 1fffe0001bcfe5ad x27: ffff0000de7f2008 x26: 1fffe0001bcfe405 x25: dfff800000000000 x24: 1fffe000193e6a8c x23: dfff800000000000 x22: ffff0000de7f2758 x21: 0000000000000001 x20: 0000000000000000 x19: ffff0000c9f35460 x18: 1fffe00035bf0220 x17: ffff800084d01190 x16: ffff80008249b50c x15: ffff8000824ccb04 x14: ffff800080ed2b00 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: ffff60001b80752d x9 : 0000000000000000 x8 : 000000000000000b x7 : 0000000000000000 x6 : ffff800080b6f208 x5 : ffff0000d5423430 x4 : 0000000000000008 x3 : ffff800080ec2908 x2 : 0000000000000001 x1 : ffff0000cbf59d00 x0 : 0000000000000000 Call trace: klist_put+0x50/0x11c lib/klist.c:212 (P) klist_del+0x24/0x34 lib/klist.c:230 device_del+0x188/0x71c drivers/base/core.c:3872 netdev_unregister_kobject+0x2a8/0x39c net/core/net-sysfs.c:2314 unregister_netdevice_many_notify+0x13d8/0x18f4 net/core/dev.c:12456 unregister_netdevice_many net/core/dev.c:12484 [inline] unregister_netdevice_queue+0x274/0x30c net/core/dev.c:12294 unregister_netdevice include/linux/netdevice.h:3444 [inline] unregister_netdev+0x2c/0x70 net/core/dev.c:12502 bnep_session+0x21b8/0x239c net/bluetooth/bnep/core.c:547 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 Code: f9400268 927ff914 91016288 d343fd08 (38776908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f9400268 ldr x8, [x19] 4: 927ff914 and x20, x8, #0xfffffffffffffffe 8: 91016288 add x8, x20, #0x58 c: d343fd08 lsr x8, x8, #3 * 10: 38776908 ldrb w8, [x8, x23] <-- trapping instruction