EXT4-fs error (device loop5) in ext4_reserve_inode_write:5837: Corrupt filesystem EXT4-fs (loop5): Remounting filesystem read-only EXT4-fs (loop5): 1 orphan inode deleted SELinux: (dev loop5, type ext4) getxattr errno 5 ================================================================== BUG: KCSAN: data-race in __find_get_block / has_bh_in_lru read-write to 0xffff888237d2ba28 of 8 bytes by task 6571 on cpu 1: bh_lru_install fs/buffer.c:1337 [inline] __find_get_block+0x434/0x8a0 fs/buffer.c:1400 __getblk_slow fs/buffer.c:1127 [inline] bdev_getblk+0x139/0x3b0 fs/buffer.c:1431 getblk_unmovable include/linux/buffer_head.h:369 [inline] ext4_getblk+0x1bd/0x530 fs/ext4/inode.c:864 ext4_bread_batch+0x5b/0x360 fs/ext4/inode.c:933 __ext4_find_entry+0xa1d/0x1090 fs/ext4/namei.c:1627 ext4_lookup_entry fs/ext4/namei.c:1729 [inline] ext4_lookup+0xba/0x390 fs/ext4/namei.c:1797 __lookup_slow+0x184/0x250 fs/namei.c:1791 lookup_slow+0x3c/0x60 fs/namei.c:1808 walk_component+0x1f5/0x230 fs/namei.c:2112 lookup_last fs/namei.c:2610 [inline] path_lookupat+0x10a/0x2b0 fs/namei.c:2634 filename_lookup+0x150/0x340 fs/namei.c:2663 user_path_at+0x3c/0x120 fs/namei.c:3070 __do_sys_chdir fs/open.c:553 [inline] __se_sys_chdir+0x4c/0x140 fs/open.c:547 __x64_sys_chdir+0x1f/0x30 fs/open.c:547 x64_sys_call+0x25cc/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:81 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 0xffff888237d2ba28 of 8 bytes by task 6563 on cpu 0: has_bh_in_lru+0x35/0x1f0 fs/buffer.c:1521 cpu_needs_drain mm/swap.c:748 [inline] __lru_add_drain_all+0x23f/0x3f0 mm/swap.c:835 lru_add_drain_all+0x10/0x20 mm/swap.c:851 invalidate_bdev+0x47/0x70 block/bdev.c:101 ext4_put_super+0x571/0x840 fs/ext4/super.c:1356 generic_shutdown_super+0xe5/0x220 fs/super.c:642 kill_block_super+0x2a/0x70 fs/super.c:1710 ext4_kill_sb+0x44/0x80 fs/ext4/super.c:7379 deactivate_locked_super+0x7d/0x1c0 fs/super.c:473 fc_drop_locked+0x50/0x60 fs/fs_context.c:379 vfs_get_tree+0x160/0x1e0 fs/super.c:1841 do_new_mount+0x227/0x690 fs/namespace.c:3511 path_mount+0x49b/0xb30 fs/namespace.c:3838 do_mount fs/namespace.c:3851 [inline] __do_sys_mount fs/namespace.c:4061 [inline] __se_sys_mount+0x27c/0x2d0 fs/namespace.c:4038 __x64_sys_mount+0x67/0x80 fs/namespace.c:4038 x64_sys_call+0x2c84/0x2dc0 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 -> 0xffff888106a8caf8 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 6563 Comm: syz.5.989 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 ==================================================================