------------[ cut here ]------------ kernel BUG at fs/ext4/mballoc.c:5338! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9802 Comm: syz-executor.5 Not tainted 6.6.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:ext4_mb_release_inode_pa.isra.0+0xa30/0xb80 fs/ext4/mballoc.c:5338 Code: b5 fb ff ff e8 51 3c 51 ff 90 0f 0b e8 49 3c 51 ff 31 ff 44 89 ee e8 af 37 51 ff 45 85 ed 0f 84 81 f8 ff ff e8 31 3c 51 ff 90 <0f> 0b e8 09 44 a6 ff e9 e5 f6 ff ff 48 89 d7 e8 fc 43 a6 ff e9 4a RSP: 0018:ffffc900035ff688 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000ffffe428 RCX: 0000000000000000 RDX: ffff8880769140c0 RSI: ffffffff8235efef RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000005 R12: ffff888062d3e128 R13: 0000000000000002 R14: 1ffff920006bfee0 R15: ffff888062ddd9f8 FS: 00007fe6d07a16c0(0000) GS:ffff8880b9600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002002a040 CR3: 0000000019727000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_discard_preallocations+0x796/0xfb0 fs/ext4/mballoc.c:5619 ext4_truncate+0xd09/0x12c0 fs/ext4/inode.c:4158 ext4_truncate_failed_write fs/ext4/truncate.h:22 [inline] ext4_write_end+0xa8a/0xed0 fs/ext4/inode.c:1313 ext4_da_write_end+0x926/0x1170 fs/ext4/inode.c:3009 generic_perform_write+0x32f/0x600 mm/filemap.c:3953 ext4_buffered_write_iter+0x11f/0x3c0 fs/ext4/file.c:299 ext4_file_write_iter+0x7f7/0x1860 fs/ext4/file.c:717 call_write_iter include/linux/fs.h:1956 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x650/0xe40 fs/read_write.c:584 ksys_write+0x12f/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe6cfa7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe6d07a10c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe6cfb9bf80 RCX: 00007fe6cfa7cae9 RDX: 000000000208e24b RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007fe6cfac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fe6cfb9bf80 R15: 00007fff9466be08 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_mb_release_inode_pa.isra.0+0xa30/0xb80 fs/ext4/mballoc.c:5338 Code: b5 fb ff ff e8 51 3c 51 ff 90 0f 0b e8 49 3c 51 ff 31 ff 44 89 ee e8 af 37 51 ff 45 85 ed 0f 84 81 f8 ff ff e8 31 3c 51 ff 90 <0f> 0b e8 09 44 a6 ff e9 e5 f6 ff ff 48 89 d7 e8 fc 43 a6 ff e9 4a RSP: 0018:ffffc900035ff688 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000ffffe428 RCX: 0000000000000000 RDX: ffff8880769140c0 RSI: ffffffff8235efef RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000005 R12: ffff888062d3e128 R13: 0000000000000002 R14: 1ffff920006bfee0 R15: ffff888062ddd9f8 FS: 00007fe6d07a16c0(0000) GS:ffff8880b9600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002002a040 CR3: 0000000019727000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400