sctp: [Deprecated]: syz-executor5 (pid 6860) Use of int in maxseg socket option. Use struct sctp_assoc_value instead watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor7:4539] Modules linked in: irq event stamp: 9968490 hardirqs last enabled at (9968489): [] seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline] hardirqs last enabled at (9968489): [] read_seqcount_begin include/linux/seqlock.h:164 [inline] hardirqs last enabled at (9968489): [] read_seqbegin include/linux/seqlock.h:433 [inline] hardirqs last enabled at (9968489): [] read_seqbegin_or_lock include/linux/seqlock.h:529 [inline] hardirqs last enabled at (9968489): [] d_walk+0x80f/0xc80 fs/dcache.c:1248 hardirqs last disabled at (9968490): [] interrupt_entry+0xb5/0xf0 arch/x86/entry/entry_64.S:625 softirqs last enabled at (272980): [] __do_softirq+0x778/0xaf5 kernel/softirq.c:311 softirqs last disabled at (272271): [] invoke_softirq kernel/softirq.c:365 [inline] softirqs last disabled at (272271): [] irq_exit+0x1d1/0x200 kernel/softirq.c:405 CPU: 0 PID: 4539 Comm: syz-executor7 Not tainted 4.17.0-rc4+ #14 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:783 [inline] RIP: 0010:lock_acquire+0x257/0x520 kernel/locking/lockdep.c:3923 RSP: 0018:ffff8801a08478d8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff10034108f20 RCX: 0000000000000000 RDX: 1ffffffff11a316d RSI: ffff8801a083abb8 RDI: 0000000000000286 RBP: ffff8801a08479c8 R08: 0000000000001511 R09: 0000000000000004 R10: ffff8801a083ac58 R11: ffff8801a083a380 R12: ffff8801a083a380 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 FS: 000000000277d940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002786978 CR3: 00000001a0fa7000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: _raw_spin_lock_nested+0x28/0x40 kernel/locking/spinlock.c:354 d_walk+0x3ad/0xc80 fs/dcache.c:1274 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:00007ffc34f0c128 EFLAGS: 00000206 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000455777 RDX: 0000000000000000 RSI: 00007ffc34f0ded0 RDI: 00007ffc34f0ded0 RBP: 00007ffc34f0ded0 R08: 0000000000000000 R09: 0000000000000001 R10: 000000000000000a R11: 0000000000000206 R12: 000000000277e940 R13: 0000000000000000 R14: 0000000000000106 R15: 0000000000012647 Code: 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 5e 02 00 00 48 83 3d e0 7c 74 07 00 0f 84 c8 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4543 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:validate_chain kernel/locking/lockdep.c:2387 [inline] RIP: 0010:__lock_acquire+0x9f9/0x5140 kernel/locking/lockdep.c:3431 RSP: 0018:ffff88019fa07520 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: 000000004c42f79b RCX: 00000000841f9613 RDX: ffff88019f9fecd0 RSI: ffff88019f9fec38 RDI: ffff88019f9fecd1 RBP: ffff88019fa078a8 R08: 0000000000000008 R09: 0000000000000003 R10: ffff88019f9fecb0 R11: ffff88019f9fe400 R12: 0000000001713f4e R13: 0000000000000000 R14: 930c62f3d3450c4a R15: 0000000000000000 FS: 000000000148f940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff5fff00610 CR3: 000000019fbc4000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:310 [inline] d_walk+0x261/0xc80 fs/dcache.c:1250 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:00007fffc0a20cf8 EFLAGS: 00000202 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000455777 RDX: 0000000000000000 RSI: 00007fffc0a22aa0 RDI: 00007fffc0a22aa0 RBP: 00007fffc0a22aa0 R08: 0000000000000000 R09: 0000000000000001 R10: 000000000000000a R11: 0000000000000202 R12: 0000000001490940 R13: 0000000000000000 R14: 0000000000000113 R15: 0000000000012672 Code: 24 70 e8 0b 71 ff ff 4c 8b 54 24 70 4c 8b 5c 24 68 85 c0 0f 84 b7 0a 00 00 48 8b 94 24 80 00 00 00 48 b8 00 00 00 00 00 fc ff df <48> c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 21 32 00 00 41