EXT4-fs (loop5): stripe (65535) is not aligned with cluster size (4096), stripe is disabled
[EXT4 FS bs=1024, gc=1, bpg=131072, ipg=32, mo=c84ce018, mo2=0000]
==================================================================
BUG: KCSAN: data-race in console_flush_all / console_flush_all

write to 0xffffffff86a24018 of 8 bytes by task 12550 on cpu 0:
 console_emit_next_record kernel/printk/printk.c:3072 [inline]
 console_flush_all+0x35b/0x6a0 kernel/printk/printk.c:3199
 __console_flush_and_unlock kernel/printk/printk.c:3258 [inline]
 console_unlock+0xa1/0x2e0 kernel/printk/printk.c:3298
 vprintk_emit+0x3b5/0x580 kernel/printk/printk.c:2423
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2438
 vprintk+0x1d/0x30 kernel/printk/printk_safe.c:82
 _printk+0x79/0xa0 kernel/printk/printk.c:2448
 __ext4_msg+0x18f/0x1a0 fs/ext4/super.c:990
 ext4_process_orphan+0x18e/0x1c0 fs/ext4/orphan.c:349
 ext4_orphan_cleanup+0x6a8/0xa00 fs/ext4/orphan.c:470
 __ext4_fill_super fs/ext4/super.c:5617 [inline]
 ext4_fill_super+0x3483/0x3810 fs/ext4/super.c:5736
 get_tree_bdev_flags+0x291/0x300 fs/super.c:1691
 get_tree_bdev+0x1f/0x30 fs/super.c:1714
 ext4_get_tree+0x1c/0x30 fs/ext4/super.c:5768
 vfs_get_tree+0x57/0x1d0 fs/super.c:1751
 fc_mount fs/namespace.c:1208 [inline]
 do_new_mount_fc fs/namespace.c:3651 [inline]
 do_new_mount+0x24d/0x660 fs/namespace.c:3727
 path_mount+0x4a5/0xb70 fs/namespace.c:4037
 do_mount fs/namespace.c:4050 [inline]
 __do_sys_mount fs/namespace.c:4238 [inline]
 __se_sys_mount+0x28c/0x2e0 fs/namespace.c:4215
 __x64_sys_mount+0x67/0x80 fs/namespace.c:4215
 x64_sys_call+0x2b51/0x3000 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff86a24018 of 8 bytes by task 12548 on cpu 1:
 console_flush_all+0x528/0x6a0 kernel/printk/printk.c:3200
 __console_flush_and_unlock kernel/printk/printk.c:3258 [inline]
 console_unlock+0xa1/0x2e0 kernel/printk/printk.c:3298
 vprintk_emit+0x3b5/0x580 kernel/printk/printk.c:2423
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2438
 vprintk+0x1d/0x30 kernel/printk/printk_safe.c:82
 _printk+0x79/0xa0 kernel/printk/printk.c:2448
 ext4_setup_super+0x572/0x580 fs/ext4/super.c:3116
 __ext4_fill_super fs/ext4/super.c:5534 [inline]
 ext4_fill_super+0x2a7e/0x3810 fs/ext4/super.c:5736
 get_tree_bdev_flags+0x291/0x300 fs/super.c:1691
 get_tree_bdev+0x1f/0x30 fs/super.c:1714
 ext4_get_tree+0x1c/0x30 fs/ext4/super.c:5768
 vfs_get_tree+0x57/0x1d0 fs/super.c:1751
 fc_mount fs/namespace.c:1208 [inline]
 do_new_mount_fc fs/namespace.c:3651 [inline]
 do_new_mount+0x24d/0x660 fs/namespace.c:3727
 path_mount+0x4a5/0xb70 fs/namespace.c:4037
 do_mount fs/namespace.c:4050 [inline]
 __do_sys_mount fs/namespace.c:4238 [inline]
 __se_sys_mount+0x28c/0x2e0 fs/namespace.c:4215
 __x64_sys_mount+0x67/0x80 fs/namespace.c:4215
 x64_sys_call+0x2b51/0x3000 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000000000021e1 -> 0x00000000000021e2

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 12548 Comm: syz.5.3034 Not tainted syzkaller #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
==================================================================
EXT4-fs error (device loop5): ext4_map_blocks:778: inode #3: block 2: comm syz.5.3034: lblock 2 mapped to illegal pblock 2 (length 1)
EXT4-fs error (device loop5): ext4_map_blocks:778: inode #3: block 48: comm syz.5.3034: lblock 0 mapped to illegal pblock 48 (length 1)
EXT4-fs error (device loop5): ext4_acquire_dquot:6945: comm syz.5.3034: Failed to acquire dquot type 0
EXT4-fs error (device loop5) in ext4_reserve_inode_write:6313: Corrupt filesystem
EXT4-fs error (device loop5): ext4_evict_inode:254: inode #11: comm syz.5.3034: mark_inode_dirty error
EXT4-fs warning (device loop5): ext4_evict_inode:257: couldn't mark inode dirty (err -117)
EXT4-fs (loop5): 1 orphan inode deleted