program: mkdir(&(0x7f0000000000)='./my_configfs\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./my_configfs\x00', &(0x7f0000000100)='configfs\x00', 0x0, 0x0) mkdir(&(0x7f0000000200)='./my_configfs/usb_gadget/g1\x00', 0x3b) mkdir(&(0x7f0000000300)='./my_configfs/usb_gadget/g1/functions/tcm.usb0\x00', 0x1ff) mkdir(&(0x7f0000000400)='./my_configfs/target/usb_gadget\x00', 0x1ff) mkdir(&(0x7f0000000500)='./my_configfs/target/usb_gadget/naa.1234567890abcdef\x00', 0x1ff) mkdir(&(0x7f0000000600)='./my_configfs/target/usb_gadget/naa.1234567890abcdef/tpgt_1\x00', 0x1ff) mkdir(&(0x7f0000000800)='./my_configfs/target/core/rd_mcp_0/dev0\x00', 0x1ff) r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./my_configfs/target/core/rd_mcp_0/dev0/control\x00', 0x1, 0x0) write(r0, &(0x7f0000000a00)='rd_pages=8', 0xa) r1 = openat(0xffffffffffffff9c, &(0x7f0000000b00)='./my_configfs/target/core/rd_mcp_0/dev0/enable\x00', 0x1, 0x0) write(r1, &(0x7f0000000c00)='1', 0x1) mkdir(&(0x7f0000000240)='./my_configfs/target/usb_gadget/naa.1234567890abcdef/tpgt_1/lun/lun_0\x00', 0x1f7) symlink(&(0x7f0000000e00)='./my_configfs/target/core/rd_mcp_0/dev0\x00', &(0x7f0000000f00)='./my_configfs/target/usb_gadget/naa.1234567890abcdef/tpgt_1/lun/lun_0/virtual_lun\x00') openat(0xffffffffffffff9c, &(0x7f0000001500)='./my_configfs/target/usb_gadget/naa.1234567890abcdef/tpgt_1/lun/lun_0/alua_tg_pt_offline\x00', 0x800, 0x0) [ 94.392451][ T4649] Bluetooth: hci0: command tx timeout [ 94.604124][ T5324] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN NOPTI [ 94.609123][ T5324] KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] [ 94.612595][ T5324] CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 94.616314][ T5324] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 94.620559][ T5324] RIP: 0010:configfs_depend_item_unlocked+0x96/0x420 [ 94.623396][ T5324] Code: df e8 0e 88 00 00 89 c5 31 ff 89 c6 e8 53 22 4f ff 85 ed 74 0a e8 0a 1e 4f ff 4d 89 fd eb 6c 48 8d 7b 60 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 05 e8 9e 50 be ff 4c 8b 6b 60 48 89 df e8 d2 87 [ 94.631390][ T5324] RSP: 0018:ffffc9000f72fad8 EFLAGS: 00010206 [ 94.633954][ T5324] RAX: 000000000000000c RBX: 0000000000000000 RCX: 0000000000000002 [ 94.637326][ T5324] RDX: ffff888012faca80 RSI: 0000000000000000 RDI: 0000000000000060 [ 94.640732][ T5324] RBP: 0000000000000000 R08: ffffffff9057c737 R09: 1ffffffff20af8e6 [ 94.643991][ T5324] R10: dffffc0000000000 R11: fffffbfff20af8e7 R12: ffffffff8f71d7a0 [ 94.647278][ T5324] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff888040b57400 [ 94.650580][ T5324] FS: 00007fd3a35a86c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 94.654202][ T5324] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.656945][ T5324] CR2: 00007ffc8dce73f0 CR3: 00000000445bc000 CR4: 0000000000352ef0 [ 94.660261][ T5324] Call Trace: [ 94.661695][ T5324] [ 94.662933][ T5324] usbg_make_tpg+0x1f6/0x590 [ 94.664952][ T5324] ? configfs_mkdir+0x4b0/0x9e0 [ 94.667026][ T5324] ? __pfx___mutex_lock+0x10/0x10 [ 94.669305][ T5324] ? __pfx_usbg_make_tpg+0x10/0x10 [ 94.671348][ T5324] ? do_raw_spin_lock+0x12b/0x2f0 [ 94.673410][ T5324] target_fabric_make_tpg+0xa8/0x6d0 [ 94.675579][ T5324] configfs_mkdir+0x4f6/0x9e0 [ 94.677555][ T5324] ? d_splice_alias+0x12/0x30 [ 94.679638][ T5324] ? __pfx_configfs_mkdir+0x10/0x10 [ 94.681722][ T5324] ? generic_permission+0x2bf/0x670 [ 94.683903][ T5324] ? bpf_lsm_inode_mkdir+0x9/0x20 [ 94.686019][ T5324] vfs_mkdir+0x406/0x620 [ 94.687832][ T5324] filename_mkdirat+0x285/0x510 [ 94.689841][ T5324] ? __pfx_filename_mkdirat+0x10/0x10 [ 94.691944][ T5324] ? do_getname+0x151/0x250 [ 94.693696][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.696019][ T5324] __se_sys_mkdir+0x34/0x150 [ 94.697885][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.700296][ T5324] do_syscall_64+0x174/0x580 [ 94.702225][ T5324] ? clear_bhb_loop+0x70/0xc0 [ 94.704305][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.706777][ T5324] RIP: 0033:0x7fd3a279e0d9 [ 94.708620][ T5324] 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 [ 94.716117][ T5324] RSP: 002b:00007fd3a35a7fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 94.719660][ T5324] RAX: ffffffffffffffda RBX: 00007fd3a2a25fa0 RCX: 00007fd3a279e0d9 [ 94.722747][ T5324] RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000200000000600 [ 94.725953][ T5324] RBP: 00007fd3a2835024 R08: 0000000000000000 R09: 0000000000000000 [ 94.729252][ T5324] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 94.732498][ T5324] R13: 00007fd3a2a26038 R14: 00007fd3a2a25fa0 R15: 00007ffc44ef9038 [ 94.735641][ T5324] [ 94.736964][ T5324] Modules linked in: [ 94.739208][ T5324] ---[ end trace 0000000000000000 ]--- [ 94.751943][ T5324] RIP: 0010:configfs_depend_item_unlocked+0x96/0x420 [ 94.754909][ T5324] Code: df e8 0e 88 00 00 89 c5 31 ff 89 c6 e8 53 22 4f ff 85 ed 74 0a e8 0a 1e 4f ff 4d 89 fd eb 6c 48 8d 7b 60 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 05 e8 9e 50 be ff 4c 8b 6b 60 48 89 df e8 d2 87 [ 94.763671][ T5324] RSP: 0018:ffffc9000f72fad8 EFLAGS: 00010206 [ 94.766752][ T5324] RAX: 000000000000000c RBX: 0000000000000000 RCX: 0000000000000002 [ 94.770077][ T5324] RDX: ffff888012faca80 RSI: 0000000000000000 RDI: 0000000000000060 [ 94.773525][ T5324] RBP: 0000000000000000 R08: ffffffff9057c737 R09: 1ffffffff20af8e6 [ 94.777029][ T5324] R10: dffffc0000000000 R11: fffffbfff20af8e7 R12: ffffffff8f71d7a0 [ 94.780267][ T5324] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff888040b57400 [ 94.784071][ T5324] FS: 00007fd3a35a86c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 94.788605][ T5324] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.791212][ T5324] CR2: 00007fd3a29f36b8 CR3: 00000000445bc000 CR4: 0000000000352ef0 [ 94.794224][ T5324] Kernel panic - not syncing: Fatal exception [ 94.797040][ T5324] Kernel Offset: disabled [ 94.798842][ T5324] Rebooting in 86400 seconds..