kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN PTI CPU: 1 PID: 10877 Comm: udevd Not tainted 5.1.0-rc5-319617-gd34f951 #4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dev_name include/linux/device.h:1087 [inline] RIP: 0010:__dev_printk+0x3f/0x215 drivers/base/core.c:3208 Code: 89 f5 53 e8 1e 24 1c fc 48 85 ed 0f 84 c9 01 00 00 e8 10 24 1c fc 48 8d 7d 50 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <80> 3c 02 00 74 05 e8 31 39 53 fc 4c 8b 7d 50 4d 85 ff 75 28 e8 e3 RSP: 0018:ffff8880ad107930 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: ffffed1015a20f2d RCX: 00000000ffffffed RDX: 0000000000000010 RSI: ffffffff85559bf0 RDI: 0000000000000080 RBP: 0000000000000030 R08: ffff888099b5c980 R09: ffffed1015a24fc9 R10: ffffed1015a24fc8 R11: ffff8880ad127e47 R12: ffffffff8f031a00 R13: ffff8880ad107988 R14: 0000000000000000 R15: ffff8880a5630c00 FS: 00007fe2777b97a0(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe2777bf000 CR3: 0000000099120000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: _dev_err+0xdc/0x10e drivers/base/core.c:3251 yurex_interrupt.cold+0x12e/0x13d drivers/usb/misc/yurex.c:183 __usb_hcd_giveback_urb+0x1f4/0x470 drivers/usb/core/hcd.c:1758 usb_hcd_giveback_urb+0x346/0x400 drivers/usb/core/hcd.c:1823 dummy_timer+0x100b/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1968 call_timer_fn+0x161/0x5f0 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x58b/0x1400 kernel/time/timer.c:1694 __do_softirq+0x22a/0x8cd kernel/softirq.c:293 invoke_softirq kernel/softirq.c:374 [inline] irq_exit+0x187/0x1b0 kernel/softirq.c:414 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0xfe/0x4a0 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:debug_lockdep_rcu_enabled+0x56/0x90 kernel/rcu/update.c:236 Code: c4 69 6c 12 85 d2 74 39 48 c7 c0 18 0e cb 93 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83 e0 07 48 c1 e9 03 83 c0 03 0f b6 14 11 <38> d0 7c 04 84 d2 75 20 8b 05 44 9f 6c 12 85 c0 74 05 e9 43 ff ff RSP: 0018:ffff88809438f9f0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000003 RBX: 00000000000041ed RCX: 1ffffffff27961c3 RDX: 0000000000000000 RSI: ffffffff81b41d9a RDI: ffff88808b9fa0c0 RBP: ffff88808b9fa0c0 R08: 0000000000000000 R09: fffffbfff2323f05 R10: fffffbfff2323f04 R11: ffffffff9191f827 R12: 0000000000000001 R13: ffff888216f0b9a0 R14: ffff888099b5c980 R15: ffff888069260042 acl_permission_check fs/namei.c:297 [inline] generic_permission+0x4d/0x4d0 fs/namei.c:339 kernfs_iop_permission+0x86/0xb0 fs/kernfs/inode.c:305 do_inode_permission fs/namei.c:384 [inline] inode_permission+0x365/0x560 fs/namei.c:449 may_lookup fs/namei.c:1700 [inline] link_path_walk.part.0+0x958/0x1230 fs/namei.c:2082 link_path_walk fs/namei.c:2267 [inline] path_lookupat.isra.0+0xe8/0x8d0 fs/namei.c:2315 filename_lookup+0x1b5/0x410 fs/namei.c:2346 do_readlinkat+0xd2/0x300 fs/stat.c:399 __do_sys_readlink fs/stat.c:432 [inline] __se_sys_readlink fs/stat.c:429 [inline] __x64_sys_readlink+0x79/0xb0 fs/stat.c:429 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe276ec2577 Code: f0 ff ff 77 02 f3 c3 48 8b 15 bd 38 2b 00 f7 d8 64 89 02 83 c8 ff c3 90 90 90 90 90 90 90 90 90 90 90 90 b8 59 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 38 2b 00 31 d2 48 29 c2 64 RSP: 002b:00007ffe99585008 EFLAGS: 00000246 ORIG_RAX: 0000000000000059 RAX: ffffffffffffffda RBX: 0000000000626250 RCX: 00007fe276ec2577 RDX: 0000000000000400 RSI: 00007ffe99585010 RDI: 00007ffe995854f0 RBP: 0000000000636e80 R08: 0000000000636e80 R09: 75642f6d726f6674 R10: 2e6364755f796d6d R11: 0000000000000246 R12: 00007ffe995854f0 R13: 0000000000000400 R14: 0000000000626250 R15: 000000000000000b Modules linked in: ---[ end trace d0610cb8fc810648 ]--- RIP: 0010:dev_name include/linux/device.h:1087 [inline] RIP: 0010:__dev_printk+0x3f/0x215 drivers/base/core.c:3208 Code: 89 f5 53 e8 1e 24 1c fc 48 85 ed 0f 84 c9 01 00 00 e8 10 24 1c fc 48 8d 7d 50 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <80> 3c 02 00 74 05 e8 31 39 53 fc 4c 8b 7d 50 4d 85 ff 75 28 e8 e3 RSP: 0018:ffff8880ad107930 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: ffffed1015a20f2d RCX: 00000000ffffffed RDX: 0000000000000010 RSI: ffffffff85559bf0 RDI: 0000000000000080 RBP: 0000000000000030 R08: ffff888099b5c980 R09: ffffed1015a24fc9 R10: ffffed1015a24fc8 R11: ffff8880ad127e47 R12: ffffffff8f031a00 R13: ffff8880ad107988 R14: 0000000000000000 R15: ffff8880a5630c00 FS: 00007fe2777b97a0(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe2777bf000 CR3: 0000000099120000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400