ffe0: 76f41048 76f41038 00018e9c 0004ba40 r10:00000036 r9:83f33980 r8:80200244 r7:00000036 r6:00000000 r5:00000000 r4:00000000 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 2754 at block/genhd.c:547 device_add_disk+0x274/0x3b0 block/genhd.c:547 Modules linked in: Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 2754 Comm: syz-executor.1 Not tainted 5.15.0-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<816800f4>] (dump_backtrace) from [<816802e0>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:237) r7:81d4fe34 r6:82222c28 r5:60000093 r4:81d5d2e4 [<816802c8>] (show_stack) from [<81688e54>] (__dump_stack lib/dump_stack.c:88 [inline]) [<816802c8>] (show_stack) from [<81688e54>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<81688e0c>] (dump_stack_lvl) from [<81688e78>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:8243cd18 [<81688e60>] (dump_stack) from [<81680dfc>] (panic+0xf8/0x320 kernel/panic.c:232) [<81680d04>] (panic) from [<802415b4>] (__warn+0xa4/0x134 kernel/panic.c:603) r3:8220c488 r2:00000000 r1:8472fc60 r0:81d4fe34 r7:00000009 [<80241510>] (__warn) from [<8168108c>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:626) r7:8071a2bc r6:00000223 r5:81d9fd00 r4:00000000 [<81681028>] (warn_slowpath_fmt) from [<8071a2bc>] (device_add_disk+0x274/0x3b0 block/genhd.c:547) r8:00000000 r7:00000000 r6:8310fb80 r5:00000001 r4:850f7780 [<8071a048>] (device_add_disk) from [<80995a48>] (add_disk include/linux/genhd.h:212 [inline]) [<8071a048>] (device_add_disk) from [<80995a48>] (loop_add+0x218/0x294 drivers/block/loop.c:2052) r9:00000001 r8:847238b8 r7:850f7780 r6:00000000 r5:824eecbc r4:84723800 [<80995830>] (loop_add) from [<80995bd0>] (loop_control_ioctl+0xc8/0x1fc drivers/block/loop.c:2173) r10:8377b900 r9:00000004 r8:851310c0 r7:00000000 r6:851310c1 r5:00000000 r4:00004c80 [<80995b08>] (loop_control_ioctl) from [<8048e268>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<80995b08>] (loop_control_ioctl) from [<8048e268>] (do_vfs_ioctl fs/ioctl.c:834 [inline]) [<80995b08>] (loop_control_ioctl) from [<8048e268>] (__do_sys_ioctl fs/ioctl.c:872 [inline]) [<80995b08>] (loop_control_ioctl) from [<8048e268>] (sys_ioctl+0x110/0xab0 fs/ioctl.c:860) r6:851310c1 r5:00000000 r4:00004c80 [<8048e158>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:64) Exception stack(0x8472ffa8 to 0x8472fff0) ffa0: 00000000 00000000 00000004 00004c80 00000000 00000000 ffc0: 00000000 00000000 00000000 00000036 7e9d231a 76f416d0 7e9d24a4 76f4120c ffe0: 76f41048 76f41038 00018e9c 0004ba40 r10:00000036 r9:83f33980 r8:80200244 r7:00000036 r6:00000000 r5:00000000 r4:00000000 Rebooting in 86400 seconds..