EXT4-fs error (device loop4): ext4_validate_block_bitmap:441: comm syz-executor.4: bg 0: block 64: padding at end of block bitmap is not set
EXT4-fs error (device loop4) in ext4_mb_clear_bb:6294: Corrupt filesystem
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BUG: KCSAN: data-race in data_push_tail / vsnprintf

write to 0xffffffff86f0dd66 of 1 bytes by task 20573 on cpu 1:
 vsnprintf+0xdd0/0xe20
 va_format lib/vsprintf.c:1681 [inline]
 pointer+0x8a1/0xd10 lib/vsprintf.c:2448
 vsnprintf+0x861/0xe20 lib/vsprintf.c:2821
 vscnprintf+0x42/0x80 lib/vsprintf.c:2923
 printk_sprint+0x30/0x2d0 kernel/printk/printk.c:2128
 vprintk_store+0x56f/0x800 kernel/printk/printk.c:2242
 vprintk_emit+0xd0/0x430 kernel/printk/printk.c:2288
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2318
 vprintk+0x83/0x90 kernel/printk/printk_safe.c:50
 _printk+0x7a/0xa0 kernel/printk/printk.c:2328
 __netdev_printk+0x2bf/0x3b0 net/core/dev.c:11271
 netdev_info+0x99/0xc0 net/core/dev.c:11318
 bond_enslave+0x2094/0x2130 drivers/net/bonding/bond_main.c:2261
 do_set_master net/core/rtnetlink.c:2626 [inline]
 rtnl_newlink_create net/core/rtnetlink.c:3460 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3660 [inline]
 rtnl_newlink+0x13e1/0x15a0 net/core/rtnetlink.c:3673
 rtnetlink_rcv_msg+0x807/0x8c0 net/core/rtnetlink.c:6395
 netlink_rcv_skb+0x126/0x220 net/netlink/af_netlink.c:2546
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:6413
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x56f/0x640 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0x665/0x770 net/netlink/af_netlink.c:1913
 sock_sendmsg_nosec net/socket.c:724 [inline]
 sock_sendmsg net/socket.c:747 [inline]
 ____sys_sendmsg+0x375/0x4c0 net/socket.c:2503
 ___sys_sendmsg net/socket.c:2557 [inline]
 __sys_sendmsg+0x1e3/0x270 net/socket.c:2586
 __do_sys_sendmsg net/socket.c:2595 [inline]
 __se_sys_sendmsg net/socket.c:2593 [inline]
 __x64_sys_sendmsg+0x46/0x50 net/socket.c:2593
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffffffff86f0dd60 of 8 bytes by task 20568 on cpu 0:
 data_make_reusable kernel/printk/printk_ringbuffer.c:590 [inline]
 data_push_tail+0x102/0x430 kernel/printk/printk_ringbuffer.c:675
 data_alloc+0xbe/0x2c0 kernel/printk/printk_ringbuffer.c:1046
 prb_reserve+0x893/0xbc0 kernel/printk/printk_ringbuffer.c:1555
 vprintk_store+0x53e/0x800 kernel/printk/printk.c:2232
 vprintk_emit+0xd0/0x430 kernel/printk/printk.c:2288
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2318
 vprintk+0x83/0x90 kernel/printk/printk_safe.c:50
 _printk+0x7a/0xa0 kernel/printk/printk.c:2328
 __ext4_std_error+0x34a/0x360 fs/ext4/super.c:912
 ext4_mb_clear_bb fs/ext4/mballoc.c:6294 [inline]
 ext4_free_blocks+0x1903/0x1a30 fs/ext4/mballoc.c:6396
 ext4_remove_blocks fs/ext4/extents.c:2545 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2710 [inline]
 ext4_ext_remove_space+0x16ba/0x2c80 fs/ext4/extents.c:2958
 ext4_ext_truncate+0x113/0x1a0 fs/ext4/extents.c:4416
 ext4_truncate+0x76f/0xb30 fs/ext4/inode.c:4153
 ext4_evict_inode+0x8b3/0xdc0 fs/ext4/inode.c:258
 evict+0x1aa/0x410 fs/inode.c:665
 iput_final fs/inode.c:1747 [inline]
 iput+0x42c/0x5b0 fs/inode.c:1773
 ext4_process_orphan+0x1a9/0x1c0 fs/ext4/orphan.c:360
 ext4_orphan_cleanup+0x669/0x9b0 fs/ext4/orphan.c:474
 __ext4_fill_super fs/ext4/super.c:5556 [inline]
 ext4_fill_super+0x35d9/0x38f0 fs/ext4/super.c:5672
 get_tree_bdev+0x2a8/0x3a0 fs/super.c:1303
 ext4_get_tree+0x1c/0x20 fs/ext4/super.c:5704
 vfs_get_tree+0x51/0x190 fs/super.c:1510
 do_new_mount+0x203/0x660 fs/namespace.c:3039
 path_mount+0x498/0xb40 fs/namespace.c:3369
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3568
 __x64_sys_mount+0x67/0x80 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000000100002a58 -> 0x00000a6b6e6b6e69

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 20568 Comm: syz-executor.4 Not tainted 6.4.0-rc4-syzkaller-00031-g8b817fded42d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
==================================================================
EXT4-fs (loop4): 1 orphan inode deleted