NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.2/4975 is trying to acquire lock: 00000000e2521533 (&nilfs->ns_sem){++++}, at: nilfs_set_error fs/nilfs2/super.c:86 [inline] 00000000e2521533 (&nilfs->ns_sem){++++}, at: __nilfs_error+0x195/0x401 fs/nilfs2/super.c:131 but task is already holding lock: 0000000055b1f153 (&dat_lock_key){.+.+}, at: nilfs_get_block+0x18f/0x970 fs/nilfs2/inode.c:79 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&dat_lock_key){.+.+}: nilfs_count_free_blocks+0x68/0x180 fs/nilfs2/the_nilfs.c:698 nilfs_set_log_cursor fs/nilfs2/super.c:237 [inline] nilfs_cleanup_super+0x133/0x490 fs/nilfs2/super.c:319 load_nilfs+0x79f/0x11f0 fs/nilfs2/the_nilfs.c:317 nilfs_fill_super fs/nilfs2/super.c:1063 [inline] nilfs_mount+0x9b5/0xe70 fs/nilfs2/super.c:1321 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&nilfs->ns_sem){++++}: down_write+0x34/0x90 kernel/locking/rwsem.c:70 nilfs_set_error fs/nilfs2/super.c:86 [inline] __nilfs_error+0x195/0x401 fs/nilfs2/super.c:131 nilfs_bmap_convert_error fs/nilfs2/bmap.c:35 [inline] nilfs_bmap_lookup_contig+0x13d/0x180 fs/nilfs2/bmap.c:95 nilfs_get_block+0x1ce/0x970 fs/nilfs2/inode.c:80 do_mpage_readpage+0x8fb/0x1ca0 fs/mpage.c:231 mpage_readpage+0xa5/0x170 fs/mpage.c:426 generic_file_buffered_read mm/filemap.c:2252 [inline] generic_file_read_iter+0x11c9/0x2b60 mm/filemap.c:2385 call_read_iter include/linux/fs.h:1815 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x518/0x750 fs/read_write.c:418 integrity_kernel_read+0x147/0x1f0 security/integrity/iint.c:200 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:364 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:393 [inline] ima_calc_file_hash+0x4b2/0x8a0 security/integrity/ima/ima_crypto.c:450 ima_collect_measurement+0x4c4/0x570 security/integrity/ima/ima_api.c:231 process_measurement+0xddd/0x1440 security/integrity/ima/ima_main.c:284 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) ima_file_check+0xb9/0x100 security/integrity/ima/ima_main.c:391 do_last fs/namei.c:3425 [inline] path_openat+0x7e4/0x2df0 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 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&dat_lock_key); lock(&nilfs->ns_sem); lock(&dat_lock_key); lock(&nilfs->ns_sem); *** DEADLOCK *** 2 locks held by syz-executor.2/4975: #0: 000000008c8e3580 (&iint->mutex){+.+.}, at: process_measurement+0x316/0x1440 security/integrity/ima/ima_main.c:224 #1: 0000000055b1f153 (&dat_lock_key){.+.+}, at: nilfs_get_block+0x18f/0x970 fs/nilfs2/inode.c:79 stack backtrace: CPU: 1 PID: 4975 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2420 [inline] __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 down_write+0x34/0x90 kernel/locking/rwsem.c:70 nilfs_set_error fs/nilfs2/super.c:86 [inline] __nilfs_error+0x195/0x401 fs/nilfs2/super.c:131 nilfs_bmap_convert_error fs/nilfs2/bmap.c:35 [inline] nilfs_bmap_lookup_contig+0x13d/0x180 fs/nilfs2/bmap.c:95 nilfs_get_block+0x1ce/0x970 fs/nilfs2/inode.c:80 do_mpage_readpage+0x8fb/0x1ca0 fs/mpage.c:231 mpage_readpage+0xa5/0x170 fs/mpage.c:426 generic_file_buffered_read mm/filemap.c:2252 [inline] generic_file_read_iter+0x11c9/0x2b60 mm/filemap.c:2385 call_read_iter include/linux/fs.h:1815 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x518/0x750 fs/read_write.c:418 integrity_kernel_read+0x147/0x1f0 security/integrity/iint.c:200 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:364 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:393 [inline] ima_calc_file_hash+0x4b2/0x8a0 security/integrity/ima/ima_crypto.c:450 ima_collect_measurement+0x4c4/0x570 security/integrity/ima/ima_api.c:231 process_measurement+0xddd/0x1440 security/integrity/ima/ima_main.c:284 ima_file_check+0xb9/0x100 security/integrity/ima/ima_main.c:391 do_last fs/namei.c:3425 [inline] path_openat+0x7e4/0x2df0 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: 0033:0x7f8dfbef45a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f8dfa467168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f8dfc014f80 RCX: 00007f8dfbef45a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000880 RBP: 00007f8dfbf4f7b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe9c86a91f R14: 00007f8dfa467300 R15: 0000000000022000 Remounting filesystem read-only overlayfs: failed to resolve '.': -1 NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) audit: type=1800 audit(1667062439.514:215): pid=4975 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="file2" dev="loop2" ino=16 res=0 overlayfs: failed to resolve '.': -2 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) overlayfs: failed to resolve '.': -1 NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) overlayfs: failed to resolve '.': -2 Remounting filesystem read-only NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) audit: type=1800 audit(1667062439.984:216): pid=5070 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="file2" dev="loop2" ino=16 res=0 overlayfs: failed to resolve '.': -2 overlayfs: failed to resolve '.': -2 NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) overlayfs: failed to resolve '.': -1 Remounting filesystem read-only NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) audit: type=1800 audit(1667062440.334:217): pid=5120 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="file2" dev="loop2" ino=16 res=0 overlayfs: failed to resolve '.': -1 overlayfs: failed to resolve '.': -1 NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) Remounting filesystem read-only NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0 NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16) audit: type=1800 audit(1667062440.564:218): pid=5181 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="file2" dev="loop2" ino=16 res=0 overlayfs: failed to resolve '.': -1 overlayfs: unrecognized mount option "fsmagic=0x0000000000000008" or missing value overlayfs: failed to resolve '.': -2 overlayfs: unrecognized mount option "fsmagic=0x0000000000000008" or missing value overlayfs: failed to resolve '.': -1 overlayfs: failed to resolve '.': -1 overlayfs: failed to resolve '.': -1 overlayfs: failed to resolve '.': -1 overlayfs: failed to resolve '.': -1 TCP: request_sock_TCP: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. overlayfs: failed to resolve '.': -1 overlayfs: failed to resolve '.': -1 affs: Unrecognized mount option "bpf" or missing value affs: Error parsing options overlayfs: failed to resolve '.': -1 overlayfs: failed to resolve '.': -1 overlayfs: failed to resolve '.': -1 overlayfs: unrecognized mount option "ÿÿÿÿÿÿÿÿ" or missing value overlayfs: unrecognized mount option "ÿÿÿÿÿÿÿÿ" or missing value overlayfs: unrecognized mount option "ÿÿÿÿÿÿÿÿ" or missing value overlayfs: failed to resolve '.': -1 overlayfs: failed to resolve '.': -1 IPVS: set_ctl: invalid protocol: 0 172.30.0.4:0 overlayfs: failed to resolve '.': -1 overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value PM: Marking nosave pages: [mem 0x00000000-0x00000fff] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] PM: Basic memory bitmaps created PM: Basic memory bitmaps freed PM: Marking nosave pages: [mem 0x00000000-0x00000fff] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] PM: Basic memory bitmaps created PM: Basic memory bitmaps freed overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value PM: Marking nosave pages: [mem 0x00000000-0x00000fff] overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value PM: Basic memory bitmaps created overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value PM: Basic memory bitmaps freed overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value overlayfs: unrecognized mount option "ɸ'Ã"Hfº8#Uß]÷/]·J°~" or missing value PM: Marking nosave pages: [mem 0x00000000-0x00000fff] sysfs: cannot create duplicate filename '/class/ieee80211/©,í…×;qO!' PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] CPU: 1 PID: 5779 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30 sysfs_do_create_link_sd+0x116/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1934 [inline] device_add+0x7d1/0x16d0 drivers/base/core.c:2136 wiphy_register+0x1664/0x2130 net/wireless/core.c:832 PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] PM: Basic memory bitmaps created ieee80211_register_hw+0x13be/0x3550 net/mac80211/main.c:1106 mac80211_hwsim_new_radio+0x1d3f/0x3c60 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5c3/0x850 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x642/0xc40 net/netlink/genetlink.c:602 genl_rcv_msg+0xbf/0x160 net/netlink/genetlink.c:627 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f94099b95a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f9407f2c168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9409ad9f80 RCX: 00007f94099b95a9 RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000003 RBP: 00007f9409a147b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffea72ab5f R14: 00007f9407f2c300 R15: 0000000000022000 overlayfs: unrecognized mount option "00000000000000000003" or missing value PM: Basic memory bitmaps freed sysfs: cannot create duplicate filename '/class/ieee80211/©,í…×;qO!' overlayfs: unrecognized mount option "00000000000000000003" or missing value CPU: 1 PID: 5839 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30 sysfs_do_create_link_sd+0x116/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1934 [inline] device_add+0x7d1/0x16d0 drivers/base/core.c:2136 wiphy_register+0x1664/0x2130 net/wireless/core.c:832 ieee80211_register_hw+0x13be/0x3550 net/mac80211/main.c:1106 mac80211_hwsim_new_radio+0x1d3f/0x3c60 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5c3/0x850 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x642/0xc40 net/netlink/genetlink.c:602 genl_rcv_msg+0xbf/0x160 net/netlink/genetlink.c:627 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f94099b95a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f9407f2c168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9409ad9f80 RCX: 00007f94099b95a9 RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000003 RBP: 00007f9409a147b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffea72ab5f R14: 00007f9407f2c300 R15: 0000000000022000 Dev loop2: unable to read RDB block 2 loop2: unable to read partition table loop2: partition table beyond EOD, truncated loop_reread_partitions: partition scan of loop2 () failed (rc=-5) sysfs: cannot create duplicate filename '/class/ieee80211/©,í…×;qO!' CPU: 1 PID: 5887 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30 sysfs_do_create_link_sd+0x116/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1934 [inline] device_add+0x7d1/0x16d0 drivers/base/core.c:2136 wiphy_register+0x1664/0x2130 net/wireless/core.c:832 ieee80211_register_hw+0x13be/0x3550 net/mac80211/main.c:1106 mac80211_hwsim_new_radio+0x1d3f/0x3c60 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5c3/0x850 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x642/0xc40 net/netlink/genetlink.c:602 genl_rcv_msg+0xbf/0x160 net/netlink/genetlink.c:627 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f94099b95a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f9407f2c168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9409ad9f80 RCX: 00007f94099b95a9 RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000003 RBP: 00007f9409a147b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffea72ab5f R14: 00007f9407f2c300 R15: 0000000000022000 Dev loop2: unable to read RDB block 2 loop2: unable to read partition table loop2: partition table beyond EOD, truncated loop_reread_partitions: partition scan of loop2 () failed (rc=-5) sysfs: cannot create duplicate filename '/class/ieee80211/©,í…×;qO!' CPU: 0 PID: 5932 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30 sysfs_do_create_link_sd+0x116/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1934 [inline] device_add+0x7d1/0x16d0 drivers/base/core.c:2136 wiphy_register+0x1664/0x2130 net/wireless/core.c:832 ieee80211_register_hw+0x13be/0x3550 net/mac80211/main.c:1106 mac80211_hwsim_new_radio+0x1d3f/0x3c60 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5c3/0x850 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x642/0xc40 net/netlink/genetlink.c:602 genl_rcv_msg+0xbf/0x160 net/netlink/genetlink.c:627 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463