program: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./config\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./config\x00', &(0x7f00000000c0)='configfs\x00', 0x0, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000140)='./sys\x00', &(0x7f0000000180)='sysfs\x00', 0x0, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./config/usb_gadget/g1\x00', 0x1dd) mkdirat(0xffffffffffffff9c, &(0x7f0000000240)='./config/usb_gadget/g1/functions/acm.usb0\x00', 0x1ff) mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff) r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='.\x00', 0x80, 0x0) symlinkat(&(0x7f0000000400)='./config/usb_gadget/g1/functions/acm.usb0\x00', r0, &(0x7f0000000480)='./config/usb_gadget/g1/configs/c.1/acm.usb0\x00') r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0) write(r1, &(0x7f0000000540)='usbip-vudc.0', 0xc) r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./sys/devices/platform/usbip-vudc.0/usbip_sockfd\x00', 0x1, 0x0) write(r2, &(0x7f0000000640)='3', 0x1) [ 76.887910][ T1332] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.891125][ T1332] ieee802154 phy1 wpan1: encryption failed: -22 [ 77.071679][ T5319] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000016: 0000 [#1] SMP KASAN NOPTI [ 77.076987][ T5319] KASAN: null-ptr-deref in range [0x00000000000000b0-0x00000000000000b7] [ 77.080461][ T5319] CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 77.084156][ T5319] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 77.087908][ T5319] RIP: 0010:configfs_symlink+0x5fc/0x1030 [ 77.090215][ T5319] Code: 03 42 80 3c 20 00 74 08 48 89 df e8 1e da bd ff 41 bc b0 00 00 00 4c 03 23 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 f6 d9 bd ff 4d 8b 2c 24 4c 89 ef e8 [ 77.097977][ T5319] RSP: 0018:ffffc9000e62fc80 EFLAGS: 00010202 [ 77.100620][ T5319] RAX: 0000000000000016 RBX: ffff88803fbfcc48 RCX: dffffc0000000000 [ 77.104044][ T5319] RDX: 0000000000000000 RSI: ffffffff8c4bed60 RDI: 00000000ffffffff [ 77.107509][ T5319] RBP: ffffc9000e62fd88 R08: ffffffff9057c237 R09: 1ffffffff20af846 [ 77.110987][ T5319] R10: dffffc0000000000 R11: fffffbfff20af847 R12: 00000000000000b0 [ 77.114271][ T5319] R13: 0000000000000000 R14: ffffffff8cb13fa8 R15: 1ffff92001cc5fa0 [ 77.117563][ T5319] FS: 00007f0dbf8266c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 77.121257][ T5319] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.123717][ T5319] CR2: 000055705991f1c0 CR3: 00000000400ce000 CR4: 0000000000352ef0 [ 77.126947][ T5319] Call Trace: [ 77.128367][ T5319] [ 77.129701][ T5319] ? lookup_one_qstr_excl+0x1d4/0x360 [ 77.131933][ T5319] ? make_vfsuid+0x49/0xa0 [ 77.133795][ T5319] ? __pfx_configfs_symlink+0x10/0x10 [ 77.136038][ T5319] ? bpf_lsm_inode_symlink+0x9/0x20 [ 77.138192][ T5319] vfs_symlink+0x18b/0x330 [ 77.140110][ T5319] ? security_path_symlink+0xfd/0x360 [ 77.142406][ T5319] filename_symlinkat+0x1cd/0x410 [ 77.144582][ T5319] ? __pfx_filename_symlinkat+0x10/0x10 [ 77.146961][ T5319] ? do_getname+0x151/0x250 [ 77.148961][ T5319] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.151579][ T5319] __se_sys_symlinkat+0x4e/0x2b0 [ 77.153747][ T5319] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.156431][ T5319] do_syscall_64+0x174/0x580 [ 77.158328][ T5319] ? trace_irq_disable+0x3b/0x140 [ 77.160410][ T5319] ? clear_bhb_loop+0x40/0x90 [ 77.162322][ T5319] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.164754][ T5319] RIP: 0033:0x7f0dbe99e019 [ 77.166738][ T5319] 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 [ 77.174466][ T5319] RSP: 002b:00007f0dbf825fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000010a [ 77.177919][ T5319] RAX: ffffffffffffffda RBX: 00007f0dbec26090 RCX: 00007f0dbe99e019 [ 77.181234][ T5319] RDX: 0000200000000480 RSI: 0000000000000003 RDI: 0000200000000400 [ 77.184452][ T5319] RBP: 00007f0dbea3500c R08: 0000000000000000 R09: 0000000000000000 [ 77.187872][ T5319] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 77.191007][ T5319] R13: 00007f0dbec26128 R14: 00007f0dbec26090 R15: 00007ffd8678b858 [ 77.194341][ T5319] [ 77.195718][ T5319] Modules linked in: [ 77.198005][ T5319] ---[ end trace 0000000000000000 ]--- [ 77.217430][ T5318] usbip-vudc usbip-vudc.0: failed to lookup sock [ 77.220367][ T5319] RIP: 0010:configfs_symlink+0x5fc/0x1030 [ 77.223289][ T5319] Code: 03 42 80 3c 20 00 74 08 48 89 df e8 1e da bd ff 41 bc b0 00 00 00 4c 03 23 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 f6 d9 bd ff 4d 8b 2c 24 4c 89 ef e8 [ 77.231839][ T5319] RSP: 0018:ffffc9000e62fc80 EFLAGS: 00010202 [ 77.234932][ T5319] RAX: 0000000000000016 RBX: ffff88803fbfcc48 RCX: dffffc0000000000 [ 77.238368][ T5319] RDX: 0000000000000000 RSI: ffffffff8c4bed60 RDI: 00000000ffffffff [ 77.241837][ T5319] RBP: ffffc9000e62fd88 R08: ffffffff9057c237 R09: 1ffffffff20af846 [ 77.245751][ T5319] R10: dffffc0000000000 R11: fffffbfff20af847 R12: 00000000000000b0 [ 77.258900][ T5319] R13: 0000000000000000 R14: ffffffff8cb13fa8 R15: 1ffff92001cc5fa0 [ 77.263334][ T5319] FS: 00007f0dbf8266c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 77.267324][ T5319] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.270237][ T5319] CR2: 00005570598f9168 CR3: 00000000400ce000 CR4: 0000000000352ef0 [ 77.275287][ T5319] Kernel panic - not syncing: Fatal exception [ 77.278257][ T5319] Kernel Offset: disabled [ 77.280050][ T5319] Rebooting in 86400 seconds..