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 [dfff80000000000b] address between user and kernel address ranges Internal error: Oops: 0000000096000005 [#1] SMP Modules linked in: CPU: 1 UID: 0 PID: 9966 Comm: kbnepd —7v–ÊKõí Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 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 : ffff800093c87800 x29: ffff800093c87800 x28: 1fffe0001ad891c2 x27: ffff0000d6c48008 x26: 1fffe0001ad89005 x25: dfff800000000000 x24: 1fffe0001e76558c x23: dfff800000000000 x22: ffff0000d6c48800 x21: 0000000000000001 x20: 0000000000000000 x19: ffff0000f3b2ac60 x18: 00000000ffffffff x17: ffff800084de6844 x16: ffff80008252a5b0 x15: ffff80008255c804 x14: ffff800080f3cfd4 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: ffff60001b266d69 x9 : 0000000000000000 x8 : 000000000000000b x7 : 0000000000000000 x6 : ffff800080bb9bb0 x5 : ffff000106b04710 x4 : 0000000000000008 x3 : ffff800080f2cf0c x2 : 0000000000000001 x1 : ffff0000d7cb1d80 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:3942 netdev_unregister_kobject+0x2a8/0x39c net/core/net-sysfs.c:2308 unregister_netdevice_many_notify+0x123c/0x1760 net/core/dev.c:12551 unregister_netdevice_many net/core/dev.c:12589 [inline] unregister_netdevice_queue+0x274/0x30c net/core/dev.c:12390 unregister_netdevice include/linux/netdevice.h:3487 [inline] unregister_netdev+0x2c/0x70 net/core/dev.c:12697 bnep_session+0x21b8/0x239c net/bluetooth/bnep/core.c:544 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838 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