BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 0 PID: 11240 Comm: syz-executor.2 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 down_write+0x34/0x90 kernel/locking/rwsem.c:70 i_mmap_lock_write include/linux/fs.h:491 [inline] unmap_mapping_pages+0xe6/0x2b0 mm/memory.c:2991 shmem_setattr+0x8b5/0xc90 mm/shmem.c:1051 notify_change+0x70b/0xfc0 fs/attr.c:334 ovl_setattr fs/overlayfs/inode.c:66 [inline] ovl_setattr+0x2f8/0x920 fs/overlayfs/inode.c:19 notify_change+0x70b/0xfc0 fs/attr.c:334 do_truncate+0x134/0x1f0 fs/open.c:63 handle_truncate fs/namei.c:3009 [inline] do_last fs/namei.c:3427 [inline] path_openat+0x2308/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f221c4060f9 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:00007f221a957168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f221c526050 RCX: 00007f221c4060f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007f221c461ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdd9f2f86f R14: 00007f221a957300 R15: 0000000000022000 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 76 bytes leftover after parsing attributes in process `syz-executor.5'. F2FS-fs (loop3): Test dummy encryption mount option ignored F2FS-fs (loop3): invalid crc value F2FS-fs (loop3): Found nat_bits in checkpoint F2FS-fs (loop3): Mounted with checkpoint version = 48b305e4 audit: type=1804 audit(1678136630.458:1523): pid=11294 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir1519960855/syzkaller.wBcrTd/280/bus/bus" dev="loop3" ino=10 res=1 F2FS-fs (loop3): Test dummy encryption mount option ignored F2FS-fs (loop3): invalid crc value F2FS-fs (loop3): Found nat_bits in checkpoint F2FS-fs (loop3): Mounted with checkpoint version = 48b305e4 9pnet: Insufficient options for proto=fd audit: type=1800 audit(1678136632.338:1524): pid=11401 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14348 res=0 audit: type=1804 audit(1678136632.368:1525): pid=11401 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/706/bus" dev="sda1" ino=14348 res=1 audit: type=1804 audit(1678136632.368:1526): pid=11401 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/706/bus" dev="sda1" ino=14348 res=1 overlayfs: filesystem on './bus' not supported as upperdir 9pnet: Insufficient options for proto=fd audit: type=1800 audit(1678136632.928:1527): pid=11433 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14663 res=0 audit: type=1800 audit(1678136633.088:1528): pid=11439 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14422 res=0 9pnet: Insufficient options for proto=fd audit: type=1804 audit(1678136633.108:1529): pid=11439 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/708/bus" dev="sda1" ino=14422 res=1 audit: type=1804 audit(1678136633.108:1530): pid=11440 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/708/bus" dev="sda1" ino=14422 res=1 F2FS-fs (loop3): Unrecognized mount option "noline_dentry" or missing value F2FS-fs (loop3): Unrecognized mount option "noline_dentry" or missing value netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. IPVS: ftp: loaded support on port[0] = 21 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. audit: type=1800 audit(1678136634.088:1531): pid=11474 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14367 res=0 audit: type=1804 audit(1678136634.128:1532): pid=11474 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/709/bus" dev="sda1" ino=14367 res=1 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1678136634.138:1533): pid=11474 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/709/bus" dev="sda1" ino=14367 res=1 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. IPVS: ftp: loaded support on port[0] = 21 F2FS-fs (loop3): Unrecognized mount option "noline_dentry" or missing value F2FS-fs (loop3): Unrecognized mount option "noline_dentry" or missing value IPVS: ftp: loaded support on port[0] = 21 kauditd_printk_skb: 7 callbacks suppressed audit: type=1800 audit(1678136637.909:1541): pid=11680 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14993 res=0 IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1678136637.969:1542): pid=11695 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/712/bus" dev="sda1" ino=14993 res=1 audit: type=1804 audit(1678136637.979:1543): pid=11680 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/712/bus" dev="sda1" ino=14993 res=1 audit: type=1800 audit(1678136638.269:1544): pid=11723 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14837 res=0 bond0: Enslaving bridge13 as an active interface with an up link audit: type=1804 audit(1678136638.269:1545): pid=11723 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/713/bus" dev="sda1" ino=14837 res=1 IPVS: ftp: loaded support on port[0] = 21 bond0: Enslaving bridge14 as an active interface with an up link audit: type=1804 audit(1678136638.269:1546): pid=11723 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/713/bus" dev="sda1" ino=14837 res=1 audit: type=1800 audit(1678136638.539:1547): pid=11750 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=15057 res=0 audit: type=1804 audit(1678136638.559:1548): pid=11756 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/714/bus" dev="sda1" ino=15057 res=1 audit: type=1804 audit(1678136638.559:1549): pid=11750 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir3705305423/syzkaller.srtKOW/714/bus" dev="sda1" ino=15057 res=1 bond0: Enslaving bridge15 as an active interface with an up link audit: type=1800 audit(1678136639.119:1550): pid=11786 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14342 res=0 F2FS-fs (loop3): Test dummy encryption mount option ignored F2FS-fs (loop3): invalid crc value F2FS-fs (loop3): Found nat_bits in checkpoint F2FS-fs (loop3): Mounted with checkpoint version = 48b305e4 F2FS-fs (loop3): Test dummy encryption mount option ignored F2FS-fs (loop3): invalid crc value F2FS-fs (loop3): Found nat_bits in checkpoint F2FS-fs (loop3): Mounted with checkpoint version = 48b305e4 F2FS-fs (loop3): Test dummy encryption mount option ignored F2FS-fs (loop3): invalid crc value F2FS-fs (loop3): Found nat_bits in checkpoint F2FS-fs (loop3): Mounted with checkpoint version = 48b305e4 kauditd_printk_skb: 8 callbacks suppressed audit: type=1804 audit(1678136644.140:1559): pid=11999 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir1519960855/syzkaller.wBcrTd/288/bus/bus" dev="loop3" ino=10 res=1 base_sock_release(0000000029924da1) sk=00000000e7e1308d base_sock_release(00000000d3cedd62) sk=00000000749b0635 base_sock_release(00000000c1add5ea) sk=000000007fb9d2cc