new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 PID: 24674 Comm: syz-executor.4 Not tainted 4.14.232-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 add_chain_cache kernel/locking/lockdep.c:2303 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2415 [inline] validate_chain kernel/locking/lockdep.c:2435 [inline] __lock_acquire.cold+0x19a/0x97c kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 seqcount_lockdep_reader_access include/linux/seqlock.h:81 [inline] read_seqcount_begin include/linux/seqlock.h:164 [inline] ktime_get+0xbd/0x2c0 kernel/time/timekeeping.c:760 hrtimer_start_range_ns+0x105/0x10b0 kernel/time/hrtimer.c:961 hrtimer_start include/linux/hrtimer.h:377 [inline] perf_swevent_start_hrtimer kernel/events/core.c:8779 [inline] perf_swevent_start_hrtimer kernel/events/core.c:8762 [inline] cpu_clock_event_start+0x100/0x160 kernel/events/core.c:8837 cpu_clock_event_add+0x37/0x40 kernel/events/core.c:8849 event_sched_in+0x498/0xdb0 kernel/events/core.c:2134 group_sched_in+0xfb/0x400 kernel/events/core.c:2174 ctx_flexible_sched_in kernel/events/core.c:3199 [inline] ctx_sched_in+0x1303/0x1860 kernel/events/core.c:3245 perf_event_sched_in+0x69/0xa0 kernel/events/core.c:2332 perf_event_context_sched_in kernel/events/core.c:3285 [inline] __perf_event_task_sched_in+0x5a3/0x8c0 kernel/events/core.c:3324 perf_event_task_sched_in include/linux/perf_event.h:1087 [inline] finish_task_switch+0x3c9/0x610 kernel/sched/core.c:2664 context_switch kernel/sched/core.c:2811 [inline] __schedule+0x893/0x1de0 kernel/sched/core.c:3384 preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:3611 retint_kernel+0x1b/0x2d RIP: 0010:debug_lockdep_rcu_enabled kernel/rcu/update.c:299 [inline] RIP: 0010:rcu_read_lock_held+0x8/0x110 kernel/rcu/update.c:326 RSP: 0018:ffff88801d4b77d8 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff10 RAX: ffffffff8a08e084 RBX: ffffc9000022f200 RCX: ffffc90006f3d000 RDX: 0000000000000deb RSI: ffffffff818c1998 RDI: ffff8880b078e9c4 RBP: 000000000000000c R08: ffffffff8b9ac748 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880a8941b40 R14: ffff8880a8940618 R15: 0000000000000000 hlist_bl_first_rcu include/linux/rculist_bl.h:24 [inline] __d_lookup_rcu+0x35d/0x640 fs/dcache.c:2203 d_alloc_parallel+0x2ce/0x16b0 fs/dcache.c:2503 lookup_slow+0x175/0x400 fs/namei.c:1679 walk_component+0x6a1/0xbc0 fs/namei.c:1825 lookup_last fs/namei.c:2293 [inline] path_lookupat+0x1bb/0x780 fs/namei.c:2343 filename_lookup+0x18a/0x510 fs/namei.c:2377 user_path_at include/linux/namei.h:57 [inline] SYSC_fchownat fs/open.c:655 [inline] SyS_fchownat+0xc5/0x190 fs/open.c:641 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x4665f9 RSP: 002b:00007fc8e49ec188 EFLAGS: 00000246 ORIG_RAX: 000000000000005c RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffef8293aff R14: 00007fc8e49ec300 R15: 0000000000022000 new mount options do not match the existing superblock, will be ignored cannot load conntrack support for proto=10 new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored cannot load conntrack support for proto=10 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'. cannot load conntrack support for proto=10 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'. EXT4-fs (loop5): invalid first ino: 0 ip_tables: iptables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table bpf: check failed: parse error ip_tables: iptables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table binder: 24999:25004 ioctl c0306201 20000480 returned -14 binder: 24999:25008 ioctl c0306201 20000480 returned -14 kauditd_printk_skb: 14 callbacks suppressed audit: type=1804 audit(1620426782.651:748): pid=25014 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir087794619/syzkaller.xZDvpE/259/file0" dev="sda1" ino=14544 res=1 audit: type=1804 audit(1620426782.701:749): pid=25001 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir087794619/syzkaller.xZDvpE/259/file0" dev="sda1" ino=14544 res=1 audit: type=1804 audit(1620426783.241:750): pid=25061 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir087794619/syzkaller.xZDvpE/260/file0" dev="sda1" ino=15577 res=1 audit: type=1804 audit(1620426783.241:751): pid=25062 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir114956369/syzkaller.YbcTR7/1222/file0" dev="sda1" ino=15520 res=1 audit: type=1804 audit(1620426783.271:752): pid=25061 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir087794619/syzkaller.xZDvpE/260/file0" dev="sda1" ino=15577 res=1 audit: type=1804 audit(1620426783.281:753): pid=25062 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir114956369/syzkaller.YbcTR7/1222/file0" dev="sda1" ino=15520 res=1 audit: type=1804 audit(1620426783.891:754): pid=25089 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir114956369/syzkaller.YbcTR7/1223/file0" dev="sda1" ino=15457 res=1 audit: type=1804 audit(1620426783.931:755): pid=25089 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir114956369/syzkaller.YbcTR7/1223/file0" dev="sda1" ino=15457 res=1 audit: type=1804 audit(1620426783.931:756): pid=25090 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir087794619/syzkaller.xZDvpE/261/file0" dev="sda1" ino=15573 res=1 audit: type=1804 audit(1620426783.941:757): pid=25090 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir087794619/syzkaller.xZDvpE/261/file0" dev="sda1" ino=15573 res=1 kauditd_printk_skb: 21 callbacks suppressed audit: type=1800 audit(1620426787.712:772): pid=25266 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.4" name="SYSV00000000" dev="hugetlbfs" ino=196613 res=0 bridge0: port 3(team0) entered disabled state XFS (loop5): unknown mount option [dont_measure]. XFS (loop5): unknown mount option [dont_measure]. XFS (loop5): unknown mount option [dont_measure].