can: request_module (can-proto-0) failed. watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor6:4550] Modules linked in: irq event stamp: 9198662 hardirqs last enabled at (9198661): [] seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline] hardirqs last enabled at (9198661): [] read_seqcount_begin include/linux/seqlock.h:164 [inline] hardirqs last enabled at (9198661): [] read_seqbegin include/linux/seqlock.h:433 [inline] hardirqs last enabled at (9198661): [] read_seqbegin_or_lock include/linux/seqlock.h:529 [inline] hardirqs last enabled at (9198661): [] d_walk+0x80f/0xc80 fs/dcache.c:1248 hardirqs last disabled at (9198662): [] interrupt_entry+0xb5/0xf0 arch/x86/entry/entry_64.S:625 softirqs last enabled at (2225220): [] __do_softirq+0x778/0xaf5 kernel/softirq.c:311 softirqs last disabled at (2225113): [] invoke_softirq kernel/softirq.c:365 [inline] softirqs last disabled at (2225113): [] irq_exit+0x1d1/0x200 kernel/softirq.c:405 CPU: 0 PID: 4550 Comm: syz-executor6 Not tainted 4.17.0-rc4+ #14 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:select_collect+0x0/0x5f0 include/linux/list.h:106 RSP: 0018:ffff88019d9379f0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: ffffffff81c5f080 RBX: ffff880194712130 RCX: ffffffff815e0571 RDX: 1ffff100328e241a RSI: ffff880194712040 RDI: ffff88019d937c10 RBP: ffff88019d937b78 R08: ffffed00328e2419 R09: ffffed00328e2418 R10: ffffed00328e2418 R11: ffff8801947120c3 R12: ffff880194712040 R13: dffffc0000000000 R14: ffff8801947120c0 R15: ffff88019d937b50 FS: 0000000001111940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd2628efd8 CR3: 000000019d900000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: shrink_dcache_parent+0x179/0x230 fs/dcache.c:1486 vfs_rmdir+0x202/0x470 fs/namei.c:3850 do_rmdir+0x523/0x610 fs/namei.c:3911 __do_sys_rmdir fs/namei.c:3929 [inline] __se_sys_rmdir fs/namei.c:3927 [inline] __x64_sys_rmdir+0x36/0x40 fs/namei.c:3927 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455777 RSP: 002b:00007ffd2628f1a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000455777 RDX: 0000000000000000 RSI: 00007ffd26290f50 RDI: 00007ffd26290f50 RBP: 00007ffd26290f50 R08: 0000000000000000 R09: 0000000000000001 R10: 000000000000000a R11: 0000000000000202 R12: 0000000001112940 R13: 0000000000000000 R14: 00000000000004f7 R15: 000000000003260f Code: ef ff 48 8b 95 20 ff ff ff 48 8b 8d 28 ff ff ff 48 8b 85 30 ff ff ff e9 dc fd ff ff 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 4c 8d 7d d8 49 be 00 00 00 00 00 fc ff Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4545 Comm: syz-executor1 Not tainted 4.17.0-rc4+ #14 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_memory_region+0x1e/0x1b0 mm/kasan/kasan.c:266 RSP: 0018:ffff8801a37c7918 EFLAGS: 00000202 RAX: ffff7fffffffffff RBX: ffff8801945a2ec0 RCX: ffffffff815e08fe RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801945a2ec0 RBP: ffff8801a37c7928 R08: 1ffff100346f8f1d R09: ffff8801a37c7728 R10: 0000000000000003 R11: 0000000000000004 R12: 1ffff100346f8f29 R13: dffffc0000000000 R14: ffff8801a37c79a8 R15: ffff8801a37c7b50 FS: 0000000000d7c940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000d85978 CR3: 00000001a35d2000 CR4: 00000000001406e0 DR0: 0000000020000080 DR1: 0000000020000080 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272 atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] queued_spin_is_locked include/asm-generic/qspinlock.h:36 [inline] debug_spin_unlock kernel/locking/spinlock_debug.c:98 [inline] do_raw_spin_unlock+0x9e/0x2e0 kernel/locking/spinlock_debug.c:134 __raw_spin_unlock include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock+0x22/0x30 kernel/locking/spinlock.c:176 spin_unlock include/linux/spinlock.h:350 [inline] d_walk+0x451/0xc80 fs/dcache.c:1298 shrink_dcache_parent+0x179/0x230 fs/dcache.c:1486 vfs_rmdir+0x202/0x470 fs/namei.c:3850 do_rmdir+0x523/0x610 fs/namei.c:3911 __do_sys_rmdir fs/namei.c:3929 [inline] __se_sys_rmdir fs/namei.c:3927 [inline] __x64_sys_rmdir+0x36/0x40 fs/namei.c:3927 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455777 RSP: 002b:00007ffc07107fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000455777 RDX: 0000000000000000 RSI: 00007ffc07109d90 RDI: 00007ffc07109d90 RBP: 00007ffc07109d90 R08: 0000000000000000 R09: 0000000000000001 R10: 000000000000000a R11: 0000000000000206 R12: 0000000000d7d940 R13: 0000000000000000 R14: 00000000000004e5 R15: 0000000000032629 Code: c5 66 90 66 2e 0f 1f 84 00 00 00 00 00 48 85 f6 0f 84 3c 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 55 0f b6 d2 48 89 e5 41 55 41 54 <53> 48 39 c7 0f 86 11 01 00 00 4c 8d 5c 37 ff 48 89 fb 49 b9 00