Warning: Permanently added '10.128.0.23' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.310168][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 39.550218][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 39.670273][ T12] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 39.681378][ T12] usb 1-1: New USB device found, idVendor=046d, idProduct=c31c, bcdDevice= 0.40 [ 39.690495][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.699943][ T12] usb 1-1: config 0 descriptor?? [ 39.741016][ T12] hub 1-1:0.0: bad descriptor, ignoring hub [ 39.748122][ T12] hub: probe of 1-1:0.0 failed with error -5 [ 40.172162][ T12] hid-generic 0003:046D:C31C.0001: unknown main item tag 0x3 [ 40.182372][ T12] hid-generic 0003:046D:C31C.0001: hidraw0: USB HID v0.00 Device [HID 046d:c31c] on usb-dummy_hcd.0-1/input0 [ 40.575541][ T12] usb 1-1: USB disconnect, device number 2 [ 40.928283][ T1889] ================================================================== [ 40.936678][ T1889] BUG: KASAN: use-after-free in strlen+0x79/0x90 [ 40.943001][ T1889] Read of size 1 at addr ffff8881d01c5f38 by task syz-executor542/1889 [ 40.951468][ T1889] [ 40.953800][ T1889] CPU: 1 PID: 1889 Comm: syz-executor542 Not tainted 5.3.0-rc2+ #25 [ 40.961758][ T1889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.970167][ T12] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 40.971811][ T1889] Call Trace: [ 40.982703][ T1889] dump_stack+0xca/0x13e [ 40.986937][ T1889] ? strlen+0x79/0x90 [ 40.990994][ T1889] ? strlen+0x79/0x90 [ 40.994974][ T1889] print_address_description+0x6a/0x32c [ 41.000635][ T1889] ? strlen+0x79/0x90 [ 41.004618][ T1889] ? strlen+0x79/0x90 [ 41.008828][ T1889] __kasan_report.cold+0x1a/0x33 [ 41.014034][ T1889] ? strlen+0x79/0x90 [ 41.018015][ T1889] kasan_report+0xe/0x12 [ 41.022504][ T1889] strlen+0x79/0x90 [ 41.026456][ T1889] hidraw_ioctl+0x245/0xae0 [ 41.031083][ T1889] ? hidraw_disconnect+0x2c0/0x2c0 [ 41.036177][ T1889] ? find_held_lock+0x2d/0x110 [ 41.041319][ T1889] ? __fget+0x32e/0x530 [ 41.045466][ T1889] ? hidraw_disconnect+0x2c0/0x2c0 [ 41.050562][ T1889] do_vfs_ioctl+0xd2d/0x1330 [ 41.055162][ T1889] ? ioctl_preallocate+0x200/0x200 [ 41.060271][ T1889] ? __fget+0x357/0x530 [ 41.064544][ T1889] ? ksys_dup3+0x3c0/0x3c0 [ 41.068975][ T1889] ? __x64_sys_futex+0x380/0x4f0 [ 41.073903][ T1889] ksys_ioctl+0x9b/0xc0 [ 41.078050][ T1889] __x64_sys_ioctl+0x6f/0xb0 [ 41.082627][ T1889] ? lockdep_hardirqs_on+0x379/0x580 [ 41.088019][ T1889] do_syscall_64+0xb7/0x580 [ 41.092513][ T1889] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.098470][ T1889] RIP: 0033:0x44f679 [ 41.102355][ T1889] Code: e8 7c d9 02 00 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 ab d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 41.122161][ T1889] RSP: 002b:00007fdb80724ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.130675][ T1889] RAX: ffffffffffffffda RBX: 00000000006e1c78 RCX: 000000000044f679 [ 41.138651][ T1889] RDX: 0000000020001340 RSI: 0000000080404805 RDI: 0000000000000005 [ 41.146615][ T1889] RBP: 00000000006e1c70 R08: 0000000000000000 R09: 0000000000000000 [ 41.154694][ T1889] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e1c7c [ 41.162806][ T1889] R13: 00007ffeeff6c52f R14: 00007fdb807259c0 R15: 0000000000000003 [ 41.170835][ T1889] [ 41.173304][ T1889] kasan: CONFIG_KASAN_INLINE enabled [ 41.178635][ T1889] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.186774][ T1889] general protection fault: 0000 [#1] SMP KASAN [ 41.193099][ T1889] CPU: 1 PID: 1889 Comm: syz-executor542 Not tainted 5.3.0-rc2+ #25 [ 41.201050][ T1889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.211244][ T1889] RIP: 0010:print_address_description+0xc5/0x32c [ 41.217566][ T1889] Code: 00 00 b9 0b 00 00 00 49 8b 5c 24 18 be 11 ff ff 01 48 89 e8 48 c1 e1 29 48 c1 e6 27 4c 01 e1 48 c1 f9 06 48 c1 e1 0c 48 01 f1 <8b> 73 18 48 29 c8 48 99 48 f7 fe 66 41 8b 44 24 2a 48 89 f7 48 89 [ 41.237158][ T1889] RSP: 0018:ffff8881cfe37bd0 EFLAGS: 00010086 [ 41.243472][ T1889] RAX: ffff8881d01c5f38 RBX: dead000000000400 RCX: ffff8881d01c5000 [ 41.251649][ T1889] RDX: ffffea0007407101 RSI: ffff888000000000 RDI: ffffed1039fc6f6c [ 41.259629][ T1889] RBP: ffff8881d01c5f38 R08: 0000000000000000 R09: ffffed103b663ee7 [ 41.267595][ T1889] R10: ffffed103b663ee6 R11: ffff8881db31f737 R12: ffffea0007407140 [ 41.275558][ T1889] R13: ffffffff85698e79 R14: ffff8881d9b32400 R15: 0000000000000005 [ 41.283529][ T1889] FS: 00007fdb80725700(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 41.292969][ T1889] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.299614][ T1889] CR2: 00007fdb806e2db8 CR3: 00000001d6b44000 CR4: 00000000001406e0 [ 41.307630][ T1889] Call Trace: [ 41.310983][ T1889] ? strlen+0x79/0x90 [ 41.315096][ T1889] ? strlen+0x79/0x90 [ 41.319064][ T1889] __kasan_report.cold+0x1a/0x33 [ 41.324178][ T1889] ? strlen+0x79/0x90 [ 41.328262][ T1889] kasan_report+0xe/0x12 [ 41.332692][ T1889] strlen+0x79/0x90 [ 41.336483][ T1889] hidraw_ioctl+0x245/0xae0 [ 41.340970][ T1889] ? hidraw_disconnect+0x2c0/0x2c0 [ 41.346155][ T1889] ? find_held_lock+0x2d/0x110 [ 41.350944][ T1889] ? __fget+0x32e/0x530 [ 41.355085][ T1889] ? hidraw_disconnect+0x2c0/0x2c0 [ 41.360174][ T1889] do_vfs_ioctl+0xd2d/0x1330 [ 41.364749][ T1889] ? ioctl_preallocate+0x200/0x200 [ 41.369839][ T1889] ? __fget+0x357/0x530 [ 41.373974][ T1889] ? ksys_dup3+0x3c0/0x3c0 [ 41.378571][ T1889] ? __x64_sys_futex+0x380/0x4f0 [ 41.383492][ T1889] ksys_ioctl+0x9b/0xc0 [ 41.387629][ T1889] __x64_sys_ioctl+0x6f/0xb0 [ 41.392203][ T1889] ? lockdep_hardirqs_on+0x379/0x580 [ 41.397546][ T1889] do_syscall_64+0xb7/0x580 [ 41.402066][ T1889] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.408100][ T1889] RIP: 0033:0x44f679 [ 41.412073][ T1889] Code: e8 7c d9 02 00 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 ab d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 41.431766][ T1889] RSP: 002b:00007fdb80724ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.440755][ T1889] RAX: ffffffffffffffda RBX: 00000000006e1c78 RCX: 000000000044f679 [ 41.448918][ T1889] RDX: 0000000020001340 RSI: 0000000080404805 RDI: 0000000000000005 [ 41.456881][ T1889] RBP: 00000000006e1c70 R08: 0000000000000000 R09: 0000000000000000 [ 41.464923][ T1889] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e1c7c [ 41.472877][ T1889] R13: 00007ffeeff6c52f R14: 00007fdb807259c0 R15: 0000000000000003 [ 41.482186][ T1889] Modules linked in: [ 41.486111][ T1889] ---[ end trace c1bb362c2519fddf ]--- [ 41.491968][ T1889] RIP: 0010:print_address_description+0xc5/0x32c [ 41.498351][ T1889] Code: 00 00 b9 0b 00 00 00 49 8b 5c 24 18 be 11 ff ff 01 48 89 e8 48 c1 e1 29 48 c1 e6 27 4c 01 e1 48 c1 f9 06 48 c1 e1 0c 48 01 f1 <8b> 73 18 48 29 c8 48 99 48 f7 fe 66 41 8b 44 24 2a 48 89 f7 48 89 [ 41.518045][ T1889] RSP: 0018:ffff8881cfe37bd0 EFLAGS: 00010086 [ 41.524561][ T1889] RAX: ffff8881d01c5f38 RBX: dead000000000400 RCX: ffff8881d01c5000 [ 41.532646][ T1889] RDX: ffffea0007407101 RSI: ffff888000000000 RDI: ffffed1039fc6f6c [ 41.540655][ T1889] RBP: ffff8881d01c5f38 R08: 0000000000000000 R09: ffffed103b663ee7 [ 41.548881][ T1889] R10: ffffed103b663ee6 R11: ffff8881db31f737 R12: ffffea0007407140 [ 41.556906][ T1889] R13: ffffffff85698e79 R14: ffff8881d9b32400 R15: 0000000000000005 [ 41.565087][ T1889] FS: 00007fdb80725700(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 41.574181][ T1889] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.581016][ T1889] CR2: 00007fdb806e2db8 CR3: 00000001d6b44000 CR4: 00000000001406e0 [ 41.588986][ T1889] Kernel panic - not syncing: Fatal exception [ 41.595630][ T1889] Kernel Offset: disabled [ 41.600182][ T1889] Rebooting in 86400 seconds..