Quota error (device loop3): qtree_write_dquot: dquota write failed Quota error (device loop3): qtree_write_dquot: dquota write failed Quota error (device loop3): qtree_write_dquot: dquota write failed ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4.h:3331! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3315 Comm: syz-executor.3 Tainted: G W 6.1.25-syzkaller-00128-g43d7226c5f91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3331 [inline] RIP: 0010:ext4_mb_load_buddy_gfp+0xef8/0xf10 fs/ext4/mballoc.c:1448 Code: ae 4d c6 ff e9 de f3 ff ff e8 d4 64 80 ff 48 c7 c7 20 af 8b 86 4c 89 ee 48 89 da e8 32 19 a7 00 e9 50 f2 ff ff e8 b8 64 80 ff <0f> 0b e8 b1 64 80 ff 0f 0b e8 aa 64 80 ff 0f 0b 0f 1f 84 00 00 00 RSP: 0018:ffffc90000f975c8 EFLAGS: 00010293 RAX: ffffffff81f35ef8 RBX: 0000000000000001 RCX: ffff8881156ca880 RDX: 0000000000000000 RSI: 00000000203d32aa RDI: 0000000000000001 RBP: ffffc90000f97650 R08: ffffffff81f350ec R09: ffffed1023cf52af R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000203d32aa R13: ffff88815c1c8000 R14: ffff888117cc43c8 R15: ffff888117cc4018 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31e29000 CR3: 0000000120e53000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_discard_preallocations+0x79c/0xef0 fs/ext4/mballoc.c:5021 ext4_release_file+0x16e/0x310 fs/ext4/file.c:166 __fput+0x3ab/0x870 fs/file_table.c:320 ____fput+0x15/0x20 fs/file_table.c:348 task_work_run+0x24d/0x2e0 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xbc5/0x2a40 kernel/exit.c:872 do_group_exit+0x21a/0x2d0 kernel/exit.c:1022 get_signal+0x169d/0x1820 kernel/signal.c:2861 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop+0x6b/0xa0 kernel/entry/common.c:168 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:297 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7efe5e48c389 Code: Unable to access opcode bytes at 0x7efe5e48c35f. RSP: 002b:00007efe5f216218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007efe5e5abf88 RCX: 00007efe5e48c389 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007efe5e5abf88 RBP: 00007efe5e5abf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007efe5e5abf8c R13: 00007ffceee5181f R14: 00007efe5f216300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3331 [inline] RIP: 0010:ext4_mb_load_buddy_gfp+0xef8/0xf10 fs/ext4/mballoc.c:1448 Code: ae 4d c6 ff e9 de f3 ff ff e8 d4 64 80 ff 48 c7 c7 20 af 8b 86 4c 89 ee 48 89 da e8 32 19 a7 00 e9 50 f2 ff ff e8 b8 64 80 ff <0f> 0b e8 b1 64 80 ff 0f 0b e8 aa 64 80 ff 0f 0b 0f 1f 84 00 00 00 RSP: 0018:ffffc90000f975c8 EFLAGS: 00010293 RAX: ffffffff81f35ef8 RBX: 0000000000000001 RCX: ffff8881156ca880 RDX: 0000000000000000 RSI: 00000000203d32aa RDI: 0000000000000001 RBP: ffffc90000f97650 R08: ffffffff81f350ec R09: ffffed1023cf52af R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000203d32aa R13: ffff88815c1c8000 R14: ffff888117cc43c8 R15: ffff888117cc4018 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31e29000 CR3: 0000000121e37000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400