EXT4-fs (loop7): re-mounted 00000000-0000-0000-0000-000000000000 ro. Quota mode: writeback.
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BUG: KCSAN: data-race in __find_get_block / has_bh_in_lru

read-write to 0xffff888237c2bb10 of 8 bytes by task 11778 on cpu 0:
 bh_lru_install fs/buffer.c:1343 [inline]
 __find_get_block+0x434/0x8a0 fs/buffer.c:1406
 __getblk_slow fs/buffer.c:1131 [inline]
 bdev_getblk+0x139/0x3b0 fs/buffer.c:1437
 sb_getblk_gfp include/linux/buffer_head.h:392 [inline]
 __ext4_sb_bread_gfp+0x46/0x180 fs/ext4/super.c:230
 ext4_sb_bread_unmovable fs/ext4/super.c:259 [inline]
 ext4_load_super fs/ext4/super.c:5070 [inline]
 __ext4_fill_super fs/ext4/super.c:5213 [inline]
 ext4_fill_super+0xe47/0x3a10 fs/ext4/super.c:5686
 get_tree_bdev_flags+0x29f/0x310 fs/super.c:1636
 get_tree_bdev+0x1f/0x30 fs/super.c:1659
 ext4_get_tree+0x1c/0x30 fs/ext4/super.c:5718
 vfs_get_tree+0x56/0x1e0 fs/super.c:1814
 do_new_mount+0x227/0x690 fs/namespace.c:3507
 path_mount+0x49b/0xb30 fs/namespace.c:3834
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x27c/0x2d0 fs/namespace.c:4034
 __x64_sys_mount+0x67/0x80 fs/namespace.c:4034
 x64_sys_call+0x203e/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:166
 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 0xffff888237c2bb10 of 8 bytes by task 11776 on cpu 1:
 has_bh_in_lru+0x35/0x1f0 fs/buffer.c:1527
 smp_call_function_many_cond+0x2d5/0xc20 kernel/smp.c:837
 on_each_cpu_cond_mask+0x3c/0x90 kernel/smp.c:1051
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x2a/0x30 fs/buffer.c:1536
 invalidate_bdev+0x42/0x70 block/bdev.c:100
 reconfigure_super+0x439/0x5b0 fs/super.c:1106
 do_remount fs/namespace.c:3047 [inline]
 path_mount+0x967/0xb30 fs/namespace.c:3826
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x27c/0x2d0 fs/namespace.c:4034
 __x64_sys_mount+0x67/0x80 fs/namespace.c:4034
 x64_sys_call+0x203e/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:166
 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: 0x0000000000000000 -> 0xffff888106631c98

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 11776 Comm: syz.7.3107 Not tainted 6.12.0-rc6-syzkaller-00272-gda4373fbcf00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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