EXT4-fs error (device loop2): ext4_xattr_ibody_find:2240: inode #15: comm syz-executor: corrupted in-inode xattr: ea_inode specified without ea_inode feature enabled
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BUG: KCSAN: data-race in data_push_tail / string

write to 0xffffffff88b8d028 of 1 bytes by task 7038 on cpu 0:
 string_nocheck lib/vsprintf.c:650 [inline]
 string+0x16c/0x210 lib/vsprintf.c:728
 vsnprintf+0xa09/0xe30 lib/vsprintf.c:2803
 vscnprintf+0x42/0x90 lib/vsprintf.c:2909
 printk_sprint+0x30/0x2d0 kernel/printk/printk.c:2197
 vprintk_store+0x570/0x810 kernel/printk/printk.c:2311
 vprintk_emit+0x15e/0x680 kernel/printk/printk.c:2383
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2422
 vprintk+0x75/0x80 kernel/printk/printk_safe.c:68
 _printk+0x7a/0xa0 kernel/printk/printk.c:2432
 __ext4_error_inode+0x2da/0x400 fs/ext4/super.c:854
 __ext4_mark_inode_dirty+0xbe/0x440 fs/ext4/inode.c:5958
 ext4_dirty_inode+0x91/0xb0 fs/ext4/inode.c:5984
 __mark_inode_dirty+0x166/0x7e0 fs/fs-writeback.c:2493
 mark_inode_dirty_sync include/linux/fs.h:2479 [inline]
 dquot_free_space include/linux/quotaops.h:380 [inline]
 dquot_free_block include/linux/quotaops.h:390 [inline]
 ext4_xattr_release_block+0x5ed/0x690 fs/ext4/xattr.c:1352
 ext4_xattr_delete_inode+0x6f4/0x790 fs/ext4/xattr.c:2998
 ext4_evict_inode+0xa82/0xdd0 fs/ext4/inode.c:273
 evict+0x2f0/0x580 fs/inode.c:723
 iput_final fs/inode.c:1875 [inline]
 iput+0x42a/0x5b0 fs/inode.c:1901
 ext4_ext_migrate+0x8e3/0x9a0 fs/ext4/migrate.c:588
 __ext4_ioctl fs/ext4/ioctl.c:1408 [inline]
 ext4_ioctl+0x103f/0x2dd0 fs/ext4/ioctl.c:1626
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xcd/0x140 fs/ioctl.c:893
 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:893
 x64_sys_call+0x15cc/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff88b8d028 of 8 bytes by task 5906 on cpu 1:
 data_make_reusable kernel/printk/printk_ringbuffer.c:594 [inline]
 data_push_tail+0x102/0x430 kernel/printk/printk_ringbuffer.c:679
 data_alloc+0xbe/0x2c0 kernel/printk/printk_ringbuffer.c:1054
 prb_reserve+0x85e/0xb60 kernel/printk/printk_ringbuffer.c:1669
 vprintk_store+0x53f/0x810 kernel/printk/printk.c:2301
 vprintk_emit+0x15e/0x680 kernel/printk/printk.c:2383
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2422
 vprintk+0x75/0x80 kernel/printk/printk_safe.c:68
 _printk+0x7a/0xa0 kernel/printk/printk.c:2432
 __ext4_error_inode+0x2da/0x400 fs/ext4/super.c:854
 check_xattrs+0x6ba/0x780 fs/ext4/xattr.c:294
 __xattr_check_inode fs/ext4/xattr.c:315 [inline]
 ext4_xattr_ibody_find+0x1a6/0x390 fs/ext4/xattr.c:2240
 ext4_find_inline_data_nolock+0xb9/0x1f0 fs/ext4/inline.c:157
 ext4_iget_extra_inode+0xdf/0x1a0 fs/ext4/inode.c:4646
 __ext4_iget+0x1289/0x1dd0 fs/ext4/inode.c:4913
 ext4_lookup+0x15b/0x390 fs/ext4/namei.c:1813
 __lookup_slow+0x184/0x250 fs/namei.c:1732
 lookup_slow+0x3c/0x60 fs/namei.c:1749
 walk_component+0x1f5/0x230 fs/namei.c:2053
 lookup_last fs/namei.c:2556 [inline]
 path_lookupat+0x10a/0x2b0 fs/namei.c:2580
 filename_lookup+0x127/0x300 fs/namei.c:2609
 user_path_at+0x3c/0x110 fs/namei.c:3016
 ksys_umount fs/namespace.c:2033 [inline]
 __do_sys_umount fs/namespace.c:2041 [inline]
 __se_sys_umount fs/namespace.c:2039 [inline]
 __x64_sys_umount+0x85/0xe0 fs/namespace.c:2039
 x64_sys_call+0x2599/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:167
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000000ffffe356 -> 0x7865203a2931706f

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 5906 Comm: syz-executor Tainted: G        W          6.11.0-syzkaller-10547-g684a64bf32b6 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
==================================================================
EXT4-fs error (device loop2): ext4_xattr_ibody_find:2240: inode #15: comm syz-executor: corrupted in-inode xattr: ea_inode specified without ea_inode feature enabled