EXT2-fs (loop5): error: ext2_free_blocks: Freeing blocks not in datazone - block = 13287800, count = 1
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block_group >= groups_count - block_group = 206093, groups_count = 1
WARNING: CPU: 0 PID: 6230 at fs/ext2/balloc.c:53 ext2_get_group_desc fs/ext2/balloc.c:-1 [inline]
WARNING: CPU: 0 PID: 6230 at fs/ext2/balloc.c:53 read_block_bitmap+0x1ec/0x754 fs/ext2/balloc.c:138
Modules linked in:
CPU: 0 PID: 6230 Comm: syz.5.276 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ext2_get_group_desc fs/ext2/balloc.c:-1 [inline]
pc : read_block_bitmap+0x1ec/0x754 fs/ext2/balloc.c:138
lr : ext2_get_group_desc fs/ext2/balloc.c:51 [inline]
lr : read_block_bitmap+0x1e8/0x754 fs/ext2/balloc.c:138
sp : ffff800020ff7530
x29: ffff800020ff7560 x28: dfff800000000000 x27: 1fffe0001871bccf
x26: ffff0000f6ba0e18 x25: ffff0000dc5ea800 x24: 000000000003250d
x23: dfff800000000000 x22: 0000000000000001 x21: ffff0000c38de678
x20: ffff0000c38de000 x19: 000000000003250d x18: ffff800011abbcc0
x17: 0000000000000000 x16: ffff8000082d22e0 x15: 0000000000000002
x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000080000
x11: 0000000000026ab7 x10: ffff800021a19000 x9 : 168053cee6987900
x8 : 168053cee6987900 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800020ff6fb8 x4 : ffff8000151a4820 x3 : ffff80000852e404
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 ext2_get_group_desc fs/ext2/balloc.c:-1 [inline]
 read_block_bitmap+0x1ec/0x754 fs/ext2/balloc.c:138
 ext2_free_blocks+0x28c/0xa3c fs/ext2/balloc.c:523
 ext2_free_data fs/ext2/inode.c:1099 [inline]
 __ext2_truncate_blocks+0x2a8/0xbc0 fs/ext2/inode.c:1190
 ext2_truncate_blocks fs/ext2/inode.c:1259 [inline]
 ext2_write_failed+0x1fc/0x270 fs/ext2/inode.c:65
 ext2_write_begin+0x70/0x88 fs/ext2/inode.c:905
 generic_perform_write+0x230/0x4b0 mm/filemap.c:3846
 __generic_file_write_iter+0x168/0x37c mm/filemap.c:3974
 generic_file_write_iter+0xb4/0x2b0 mm/filemap.c:4006
 ext2_file_write_iter+0xc4/0x404 fs/ext2/file.c:179
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ac/0x7c4 fs/read_write.c:584
 ksys_pwrite64 fs/read_write.c:699 [inline]
 __do_sys_pwrite64 fs/read_write.c:709 [inline]
 __se_sys_pwrite64 fs/read_write.c:706 [inline]
 __arm64_sys_pwrite64+0x170/0x200 fs/read_write.c:706
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 8574
hardirqs last  enabled at (8573): [<ffff800008308424>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261
hardirqs last disabled at (8574): [<ffff800011957670>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (8548): [<ffff8000081a967c>] softirq_handle_end kernel/softirq.c:439 [inline]
softirqs last  enabled at (8548): [<ffff8000081a967c>] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624
softirqs last disabled at (8507): [<ffff800008020164>] __do_softirq+0x14/0x20 kernel/softirq.c:630
---[ end trace 0000000000000000 ]---
EXT2-fs (loop5): error: ext2_free_blocks: Freeing blocks not in datazone - block = 29554, count = 1