netlink: 'syz-executor.4': attribute type 18 has an invalid length. BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 PID: 6515 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:2259 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2371 [inline] validate_chain kernel/locking/lockdep.c:2391 [inline] __lock_acquire.cold+0x420/0x57e kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 perf_ctx_lock kernel/events/core.c:163 [inline] perf_event_context_sched_in kernel/events/core.c:3433 [inline] __perf_event_task_sched_in+0x525/0x9b0 kernel/events/core.c:3491 perf_event_task_sched_in include/linux/perf_event.h:1115 [inline] finish_task_switch+0x437/0x760 kernel/sched/core.c:2676 context_switch kernel/sched/core.c:2831 [inline] __schedule+0x88f/0x2040 kernel/sched/core.c:3517 preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:3744 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:lock_acquire+0x1ec/0x3c0 kernel/locking/lockdep.c:3911 Code: 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 b7 01 00 00 48 83 3d 09 2e a6 08 00 0f 84 2a 01 00 00 48 8b 7c 24 08 57 9d <0f> 1f 44 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 65 8b RSP: 0018:ffff88802784fde0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: ffff888026df2280 RCX: 0000000000005afc RDX: dffffc0000000000 RSI: 000000001666fd9b RDI: 0000000000000286 RBP: ffff8880adf52350 R08: ffffffff8cd44d20 R09: 0000000000000000 R10: ffff888026df2b08 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 down_read+0x36/0x80 kernel/locking/rwsem.c:24 iterate_supers+0xdb/0x290 fs/super.c:631 ksys_sync+0x97/0x150 fs/sync.c:114 __ia32_sys_sync+0xa/0x10 fs/sync.c:124 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f0fe30f70f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0fe1669168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f0fe3216f80 RCX: 00007f0fe30f70f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f0fe3152ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffd8a5b51f R14: 00007f0fe1669300 R15: 0000000000022000 IPVS: ftp: loaded support on port[0] = 21 overlayfs: missing 'lowerdir' netlink: 'syz-executor.4': attribute type 18 has an invalid length. Bluetooth: hci2: command 0x040f tx timeout block nbd2: shutting down sockets overlayfs: missing 'lowerdir' overlayfs: missing 'lowerdir' netlink: 'syz-executor.4': attribute type 18 has an invalid length. block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task overlayfs: missing 'lowerdir' overlayfs: missing 'lowerdir' block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task overlayfs: missing 'lowerdir' block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task overlayfs: missing 'lowerdir' block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task block nbd2: Device being setup by another task Bluetooth: hci2: command 0x0419 tx timeout overlayfs: missing 'lowerdir' overlayfs: missing 'lowerdir' block nbd2: Device being setup by another task block nbd2: Device being setup by another task EXT4-fs error (device sda1): mb_free_blocks:1452: group 11, inode 14341: block 362528:freeing already freed block (bit 2080); block bitmap corrupt. EXT4-fs error (device sda1): ext4_mb_generate_buddy:744: group 11, block bitmap and bg descriptor inconsistent: 30679 vs 30688 free clusters EXT4-fs (sda1): pa 000000004c4e7d42: logic 32768, phys. 362496, len 2048 EXT4-fs error (device sda1): ext4_mb_release_inode_pa:3864: group 11, free 2016, pa_free 2007 EXT4-fs error (device sda1): mb_free_blocks:1452: group 13, inode 14722: block 426016:freeing already freed block (bit 32); block bitmap corrupt. EXT4-fs error (device sda1): ext4_mb_generate_buddy:744: group 13, block bitmap and bg descriptor inconsistent: 32727 vs 32736 free clusters EXT4-fs (sda1): pa 0000000077cc59f5: logic 32768, phys. 425984, len 2048 EXT4-fs error (device sda1): ext4_mb_release_inode_pa:3864: group 13, free 2016, pa_free 2007 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 IPVS: ftp: loaded support on port[0] = 21 9pnet: p9_fd_create_tcp (7026): problem connecting socket to 127.0.0.1 audit: type=1800 audit(1678158488.505:19851): pid=7026 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=14814 res=0 x_tables: ip6_tables: icmp6 match: only valid for protocol 58 x_tables: ip6_tables: icmp6 match: only valid for protocol 58 overlayfs: unrecognized mount option "euid>00000000000000000000" or missing value audit: type=1804 audit(1678158488.615:19852): pid=7028 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir1903348262/syzkaller.xGvHnz/17/file0" dev="sda1" ino=14814 res=1 audit: type=1804 audit(1678158489.525:19853): pid=6917 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3621114402/syzkaller.obiF8c/545/bus" dev="sda1" ino=13876 res=1 audit: type=1804 audit(1678158489.525:19854): pid=6917 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir3621114402/syzkaller.obiF8c/545/bus" dev="sda1" ino=13876 res=1 audit: type=1804 audit(1678158489.525:19855): pid=6917 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir3621114402/syzkaller.obiF8c/545/bus" dev="sda1" ino=13876 res=1 audit: type=1804 audit(1678158489.655:19856): pid=7036 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir3621114402/syzkaller.obiF8c/545/bus" dev="sda1" ino=13876 res=1 overlayfs: unrecognized mount option "euid>00000000000000000000" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. 9pnet: p9_fd_create_tcp (7063): problem connecting socket to 127.0.0.1 audit: type=1800 audit(1678158489.785:19857): pid=7058 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=14326 res=0 IPVS: ftp: loaded support on port[0] = 21 overlayfs: unrecognized mount option "euid>00000000000000000000" or missing value audit: type=1800 audit(1678158490.125:19858): pid=7104 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=14215 res=0 9pnet: p9_fd_create_tcp (7104): problem connecting socket to 127.0.0.1 overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1678158491.015:19859): pid=7053 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3621114402/syzkaller.obiF8c/546/bus" dev="sda1" ino=14040 res=1 audit: type=1804 audit(1678158491.015:19860): pid=7152 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3621114402/syzkaller.obiF8c/546/bus" dev="sda1" ino=14040 res=1 9pnet: p9_fd_create_tcp (7176): problem connecting socket to 127.0.0.1 9pnet: p9_fd_create_tcp (7177): problem connecting socket to 127.0.0.1 x_tables: ip6_tables: icmp6 match: only valid for protocol 58 x_tables: ip6_tables: icmp6 match: only valid for protocol 58 x_tables: ip6_tables: icmp6 match: only valid for protocol 58 x_tables: ip6_tables: icmp6 match: only valid for protocol 58 kauditd_printk_skb: 8 callbacks suppressed audit: type=1804 audit(1678158493.615:19869): pid=7161 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir4283206039/syzkaller.uKLprh/607/bus" dev="sda1" ino=14102 res=1 audit: type=1800 audit(1678158493.615:19870): pid=7161 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14102 res=0 audit: type=1804 audit(1678158493.755:19871): pid=7202 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir4283206039/syzkaller.uKLprh/607/bus" dev="sda1" ino=14102 res=1 audit: type=1804 audit(1678158494.115:19872): pid=7222 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir4283206039/syzkaller.uKLprh/608/bus" dev="sda1" ino=14470 res=1 audit: type=1800 audit(1678158494.145:19873): pid=7222 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14470 res=0 audit: type=1804 audit(1678158494.315:19874): pid=7257 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir4283206039/syzkaller.uKLprh/609/bus" dev="sda1" ino=14518 res=1 audit: type=1800 audit(1678158494.315:19875): pid=7257 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14518 res=0 audit: type=1804 audit(1678158494.325:19876): pid=7258 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir4283206039/syzkaller.uKLprh/609/bus" dev="sda1" ino=14518 res=1 IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1678158494.975:19877): pid=7215 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3621114402/syzkaller.obiF8c/548/bus" dev="sda1" ino=14405 res=1 audit: type=1800 audit(1678158494.975:19878): pid=7215 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=14405 res=0 IPVS: ftp: loaded support on port[0] = 21 overlayfs: unrecognized mount option "wor‚Bí®ÑMLÛ½€\àkdir=./bus" or missing value overlayfs: unrecognized mount option "wor‚Bí®ÑMLÛ½€\àkdir=./bus" or missing value overlayfs: unrecognized mount option "wor‚Bí®ÑMLÛ½€\àkdir=./bus" or missing value IPVS: ftp: loaded support on port[0] = 21 overlayfs: unrecognized mount option "wor‚Bí®ÑMLÛ½€\àkdir=./bus" or missing value overlayfs: unrecognized mount option "wr}†hHÐîàkdir=./busÿÿÿÿ" or missing value overlayfs: unrecognized mount option "wr}†hHÐîàkdir=./busÿÿÿÿ" or missing value overlayfs: unrecognized mount option "wr}†hHÐîàkdir=./busÿÿÿÿ" or missing value overlayfs: unrecognized mount option "wr}†hHÐîàkdir=./busÿÿÿÿ" or missing value netlink: 16 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.1'. XFS (loop4): unknown mount option [noaz3âgquoxzŒ‚þšªƒšÆ£üŸNa]. PM: Image not found (code -22) device vxlan0 entered promiscuous mode XFS (loop4): unknown mount option [noaz3âgquoxzŒ‚þšªƒšÆ£üŸNa]. PM: Image not found (code -22) kauditd_printk_skb: 77 callbacks suppressed audit: type=1804 audit(1678158499.015:19956): pid=7587 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir1903348262/syzkaller.xGvHnz/31/bus" dev="sda1" ino=14113 res=1 PM: Image not found (code -22) ---------------- Code disassembly (best guess): 0: 08 00 or %al,(%rax) 2: 00 00 add %al,(%rax) 4: 00 00 add %al,(%rax) 6: 00 48 c1 add %cl,-0x3f(%rax) 9: e8 03 80 3c 10 callq 0x103c8011 e: 00 0f add %cl,(%rdi) 10: 85 b7 01 00 00 48 test %esi,0x48000001(%rdi) 16: 83 3d 09 2e a6 08 00 cmpl $0x0,0x8a62e09(%rip) # 0x8a62e26 1d: 0f 84 2a 01 00 00 je 0x14d 23: 48 8b 7c 24 08 mov 0x8(%rsp),%rdi 28: 57 push %rdi 29: 9d popfq * 2a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) <-- trapping instruction 2f: 48 83 c4 18 add $0x18,%rsp 33: 5b pop %rbx 34: 5d pop %rbp 35: 41 5c pop %r12 37: 41 5d pop %r13 39: 41 5e pop %r14 3b: 41 5f pop %r15 3d: c3 retq 3e: 65 gs 3f: 8b .byte 0x8b