Unable to handle kerne Unable to handle kernel paging request at virtual address fbd5200000000020 KASAN: maybe wild-memory-access in range [0xdead000000000100-0xdead000000000107] Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [fbd5200000000020] address between user and kernel address ranges Internal error: Oops: 0000000096000004 [#1] SMP Modules linked in: CPU: 1 UID: 0 PID: 7191 Comm: syz.4.84 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : l2cap_conn_del+0x260/0x5f0 net/bluetooth/l2cap_core.c:1783 lr : l2cap_conn_del+0x354/0x5f0 net/bluetooth/l2cap_core.c:1783 sp : ffff80009d6674b0 x29: ffff80009d6674d0 x28: 0000000000000001 x27: ffff80008dcedca0 x26: ffff0000d5e18000 x25: dead000000000100 x24: 000000007ffffffe x23: 0000000000000001 x22: ffff0000c88c1ac0 x21: dead000000000100 x20: dfff800000000000 x19: ffff0000c88c1800 x18: 00000000ffffffff x17: ffff800093524000 x16: ffff80008b0156e8 x15: 0000000000000001 x14: 1fffe0001abc3001 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001abc3002 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 1bd5a00000000020 x7 : ffff80008312a368 x6 : 0000000000000000 x5 : 0000000000000020 x4 : ffff80009d666fb0 x3 : ffff80008a29deb8 x2 : 0000000000000001 x1 : 0000000000000002 x0 : 0000000000000001 Call trace: l2cap_conn_del+0x260/0x5f0 net/bluetooth/l2cap_core.c:1783 (P) l2cap_disconn_cfm+0x90/0xe0 net/bluetooth/l2cap_core.c:7325 hci_disconn_cfm include/net/bluetooth/hci_core.h:2097 [inline] hci_conn_hash_flush+0x108/0x218 net/bluetooth/hci_conn.c:2599 hci_dev_close_sync+0x89c/0x1154 net/bluetooth/hci_sync.c:5294 hci_dev_do_close net/bluetooth/hci_core.c:501 [inline] hci_unregister_dev+0x204/0x4c0 net/bluetooth/hci_core.c:2715 vhci_release+0x12c/0x17c drivers/bluetooth/hci_vhci.c:690 __fput+0x340/0x75c fs/file_table.c:468 ____fput+0x20/0x58 fs/file_table.c:496 task_work_run+0x1dc/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x524/0x1a14 kernel/exit.c:961 do_group_exit+0x194/0x22c kernel/exit.c:1102 get_signal+0x11dc/0x12f8 kernel/signal.c:3034 arch_do_signal_or_restart+0x274/0x4434 arch/arm64/kernel/signal.c:1619 exit_to_user_mode_loop+0x7c/0x168 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:103 [inline] el0_svc+0x170/0x254 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Code: 54000e80 52800037 321f77f8 d343ff28 (38746908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 54000e80 b.eq 0x1d0 // b.none 4: 52800037 mov w23, #0x1 // #1 8: 321f77f8 mov w24, #0x7ffffffe // #2147483646 c: d343ff28 lsr x8, x25, #3 * 10: 38746908 ldrb w8, [x8, x20] <-- trapping instruction