program: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) (async) mount(0x0, &(0x7f0000000040)='./sys/block/md0/md/metadata_version\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0) (async) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/md_mod/parameters/new_array\x00', 0x1, 0x0) write(r0, &(0x7f0000000400)='md0', 0x3) (async) mkdirat(0xffffffffffffff9c, &(0x7f0000000440)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) io_setup(0x2, &(0x7f00000001c0)=0x0) io_submit(r1, 0x1, &(0x7f0000000340)=[&(0x7f00000002c0)={0x0, 0x0, 0x0, 0x3, 0x6, r0, &(0x7f0000000200)="a24565ce674b8ac90bc17fc4e380a4f87248c926b82855079140a147dfd608dd9717915e34939a49bd0a9624370a39ba36c56f5c79a9ec7af204e622f19476507a1fb81af94ac1824e2cc76605298082e757a49d09ce72611d997cc3e7cfb8263a54e08572bd8f788840203cebfe1d42ca90db151db2f933735ea27630ee898c0209a61f0408a3a5e6530bd28b4da6ad52bff3334c6d49ec811d8a", 0x9b, 0x9, 0x0, 0x0, r0}]) (async, rerun: 64) r2 = openat(0xffffffffffffffff, &(0x7f00000000a0)='./proc/net/afs/cells\x00', 0x2, 0x0) (async, rerun: 64) ioctl$F2FS_IOC_GARBAGE_COLLECT(r0, 0x4004f506, &(0x7f0000000380)=0x1) (async) r3 = syz_usb_connect(0x3, 0x40, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000407205feca00010000000109022e0001010080fa0904000004ff000000070501020002000705810200020007050202000200070582020002"], 0x0) syz_usb_ep_read(r3, 0x1, 0x0, 0x0) (async) syz_usb_ep_write(r3, 0x81, 0x40, &(0x7f0000000100)="900100"/64) (async, rerun: 32) syz_usb_ep_read(r3, 0x1, 0x0, 0x0) (async, rerun: 32) syz_usb_ep_write(r3, 0x81, 0x40, &(0x7f0000000300)="9101000000112233445500"/64) (async) syz_usb_ep_read(r3, 0x1, 0x0, 0x0) (async) syz_usb_ep_read(r3, 0x1, 0x0, 0x0) (async) syz_usb_ep_write(r3, 0x81, 0x0, 0x0) syz_usb_ep_write(r3, 0x81, 0x0, 0x0) syz_usb_ep_write(r3, 0x81, 0x0, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f00000003c0)='./sys/module/md_mod/parameters/new_array\x00', 0x0) (async) mount(0x0, &(0x7f0000000e00)='./sys\x00', &(0x7f0000000f00)='sysfs\x00', 0x0, 0x0) r4 = openat(0xffffffffffffff9c, &(0x7f0000001000)='./sys/devices/platform/dummy_hcd.0/usb5/5-1/5-1:1.0/adsl_state\x00', 0x2, 0x0) write(r4, &(0x7f0000001200)='stop', 0x4) (async, rerun: 32) syz_usb_ep_read(r3, 0x1, 0x0, 0x0) (async, rerun: 32) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) write(r2, &(0x7f0000000140)='add', 0x3) (async) setxattr$trusted_overlay_origin(&(0x7f00000000c0)='./sys\x00', &(0x7f0000000100), &(0x7f0000000180), 0x2, 0x2) (async) r5 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/block/md0/md/metadata_version\x00', 0x1, 0x0) write(r5, &(0x7f0000000140)="3106", 0x2) [ 94.948984][ T5277] Bluetooth: hci0: command tx timeout [ 95.257412][ T43] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 95.408113][ T43] usb 5-1: New USB device found, idVendor=0572, idProduct=cafe, bcdDevice= 1.00 [ 95.410221][ T43] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 95.646651][ T43] cxacru 5-1:1.0: invalid response length to cm 0x90: 0 [ 95.668039][ T5322] cxacru 5-1:1.0: Direct firmware load for cxacru-fw.bin failed with error -2 [ 95.668067][ T5322] cxacru 5-1:1.0: Falling back to sysfs fallback for: cxacru-fw.bin [ 97.027510][ T5277] Bluetooth: hci0: command tx timeout [ 97.907470][ T5312] cxacru 5-1:1.0: receive of cm 0x85 failed (-104) [ 97.907519][ T5312] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN NOPTI [ 97.915432][ T5312] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 97.919187][ T5312] CPU: 0 UID: 0 PID: 5312 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 97.923046][ T5312] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 97.927520][ T5312] RIP: 0010:adsl_state_store+0x5cc/0x770 [ 97.930027][ T5312] Code: 03 42 80 3c 28 00 74 14 48 89 4c 24 10 48 8b 7c 24 10 e8 b7 3a 7e fa 48 8b 4c 24 10 48 8b 11 48 83 c2 10 48 89 d0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 4b 01 00 00 4d 89 f4 8b 32 48 c7 c7 e0 [ 97.938047][ T5312] RSP: 0018:ffffc9000de17b80 EFLAGS: 00010202 [ 97.940756][ T5312] RAX: 0000000000000002 RBX: 00000000ffffff98 RCX: ffff888012796078 [ 97.944113][ T5312] RDX: 0000000000000010 RSI: 00000000ffffff98 RDI: 0000000000000000 [ 97.947511][ T5312] RBP: ffffc9000de17c40 R08: ffffc9000de17907 R09: 1ffff92001bc2f20 [ 97.950859][ T5312] R10: dffffc0000000000 R11: fffff52001bc2f21 R12: ffff88805233c800 [ 97.954173][ T5312] R13: dffffc0000000000 R14: 0000000000000004 R15: 1ffff92001bc2f74 [ 97.957519][ T5312] FS: 00007f3eb46ae6c0(0000) GS:ffff88808c2c2000(0000) knlGS:0000000000000000 [ 97.961429][ T5312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.964398][ T5312] CR2: 00007f6fc478b684 CR3: 00000000430c9000 CR4: 0000000000352ef0 [ 97.968112][ T5312] Call Trace: [ 97.969615][ T5312] [ 97.970926][ T5312] ? sysfs_file_kobj+0x1a/0x230 [ 97.973019][ T5312] ? __pfx_adsl_state_store+0x10/0x10 [ 97.975658][ T5312] ? sysfs_file_kobj+0x1e4/0x230 [ 97.978007][ T5312] ? sysfs_kf_write+0x166/0x260 [ 97.980269][ T5312] ? __pfx_sysfs_kf_write+0x10/0x10 [ 97.982603][ T5312] kernfs_fop_write_iter+0x3a4/0x540 [ 97.984653][ T5312] vfs_write+0x612/0xba0 [ 97.986495][ T5312] ? __pfx_vfs_write+0x10/0x10 [ 97.988633][ T5312] ? __fget_files+0x2a/0x420 [ 97.990635][ T5312] ksys_write+0x150/0x270 [ 97.992417][ T5312] ? __pfx_ksys_write+0x10/0x10 [ 97.994505][ T5312] do_syscall_64+0x166/0x520 [ 97.996573][ T5312] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.999329][ T5312] ? clear_bhb_loop+0x70/0xc0 [ 98.001315][ T5312] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 98.003800][ T5312] RIP: 0033:0x7f3eb379e159 [ 98.005649][ T5312] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 98.013583][ T5312] RSP: 002b:00007f3eb46adfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 98.017082][ T5312] RAX: ffffffffffffffda RBX: 00007f3eb3a25fa0 RCX: 00007f3eb379e159 [ 98.020414][ T5312] RDX: 0000000000000004 RSI: 0000200000001200 RDI: 0000000000000004 [ 98.023832][ T5312] RBP: 00007f3eb383506b R08: 0000000000000000 R09: 0000000000000000 [ 98.027272][ T5312] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 98.030556][ T5312] R13: 00007f3eb3a26038 R14: 00007f3eb3a25fa0 R15: 00007ffd60eb42d8 [ 98.033598][ T5312] [ 98.034903][ T5312] Modules linked in: [ 98.037181][ T5312] ---[ end trace 0000000000000000 ]--- [ 98.046205][ T5312] RIP: 0010:adsl_state_store+0x5cc/0x770 [ 98.046231][ T5312] Code: 03 42 80 3c 28 00 74 14 48 89 4c 24 10 48 8b 7c 24 10 e8 b7 3a 7e fa 48 8b 4c 24 10 48 8b 11 48 83 c2 10 48 89 d0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 4b 01 00 00 4d 89 f4 8b 32 48 c7 c7 e0 [ 98.046240][ T5312] RSP: 0018:ffffc9000de17b80 EFLAGS: 00010202 [ 98.046252][ T5312] RAX: 0000000000000002 RBX: 00000000ffffff98 RCX: ffff888012796078 [ 98.046260][ T5312] RDX: 0000000000000010 RSI: 00000000ffffff98 RDI: 0000000000000000 [ 98.046266][ T5312] RBP: ffffc9000de17c40 R08: ffffc9000de17907 R09: 1ffff92001bc2f20 [ 98.046273][ T5312] R10: dffffc0000000000 R11: fffff52001bc2f21 R12: ffff88805233c800 [ 98.046280][ T5312] R13: dffffc0000000000 R14: 0000000000000004 R15: 1ffff92001bc2f74 [ 98.046287][ T5312] FS: 00007f3eb46ae6c0(0000) GS:ffff88808c2c2000(0000) knlGS:0000000000000000 [ 98.046297][ T5312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.046304][ T5312] CR2: 00007f6fc478b684 CR3: 00000000430c9000 CR4: 0000000000352ef0 [ 98.046346][ T5312] Kernel panic - not syncing: Fatal exception [ 98.089647][ T5312] Kernel Offset: disabled [ 98.091640][ T5312] Rebooting in 86400 seconds..