Unable to handle kernel paging request at virtual address dfff800000000002 Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff800000000002] address between user and kernel address ranges Internal error: Oops: 96000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 9904 Comm: syz-executor.0 Not tainted 5.15.103-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : io_arm_poll_handler+0x270/0xa9c io_uring/io_uring.c:5940 lr : kmalloc include/linux/slab.h:591 [inline] lr : io_arm_poll_handler+0x264/0xa9c io_uring/io_uring.c:5939 sp : ffff80001cf47700 x29: ffff80001cf477b0 x28: ffff7000039e8ee4 x27: dfff800000000000 x26: 0000000000000014 x25: ffff00012d06da58 x24: 0000000000000000 x23: ffff80001cf47740 x22: ffff00012d06da48 x21: 000000004000010e x20: 1fffe00025a0db49 x19: ffff00012d06da00 x18: 0000000000000001 x17: ff808000083386a0 x16: ffff8000082ed0d4 x15: ffff8000083386a0 x14: 00000000ffffffff x13: ffffffffffffffff x12: 0000000000040000 x11: 000000000000c9fc x10: 1fffe0001b196001 x9 : a84ea4a7ebb0d300 x8 : 0000000000000002 x7 : 0000000000000000 x6 : 0000000000010ff8 x5 : ffff80001cf46b98 x4 : 0000000000000a20 x3 : 0000000000000a20 x2 : 0000000000000048 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: io_arm_poll_handler+0x270/0xa9c io_uring/io_uring.c:5940 __io_queue_sqe+0xa8/0x31c io_uring/io_uring.c:7214 io_queue_sqe io_uring/io_uring.c:7242 [inline] io_submit_sqe io_uring/io_uring.c:7419 [inline] io_submit_sqes+0x10e0/0x8da8 io_uring/io_uring.c:7525 __do_sys_io_uring_enter io_uring/io_uring.c:10254 [inline] __se_sys_io_uring_enter io_uring/io_uring.c:10196 [inline] __arm64_sys_io_uring_enter+0x2a0/0x1df4 io_uring/io_uring.c:10196 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 977d69c1 9100501a aa0003f8 d343ff48 (38fb6908) ---[ end trace e3031f6b75620dc2 ]--- ---------------- Code disassembly (best guess): 0: 977d69c1 bl 0xfffffffffdf5a704 4: 9100501a add x26, x0, #0x14 8: aa0003f8 mov x24, x0 c: d343ff48 lsr x8, x26, #3 * 10: 38fb6908 ldrsb w8, [x8, x27] <-- trapping instruction