------------[ cut here ]------------ kernel BUG at fs/ext4/ext4.h:3332! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7863 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller-00113-g1a0beef98b58 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:ext4_get_group_info+0x399/0x3a0 fs/ext4/ext4.h:3332 Code: 4f ff 8b 74 24 04 48 c7 c7 a0 ac 0b 8d 4c 89 f2 e8 0c 1b 2e 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 77 22 4f ff <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00 RSP: 0018:ffffc9001605fad0 EFLAGS: 00010293 RAX: ffffffff823b5719 RBX: 000000001cdb94a1 RCX: ffff8880330dd7c0 RDX: 0000000000000000 RSI: 000000001cdb94a1 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffff823b53e9 R09: ffffed100658487d R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100ef81ccf R13: dffffc0000000000 R14: ffff888078a88000 R15: ffff888077c0e678 FS: 0000555556ad7400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1ced63f000 CR3: 000000001e279000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_mb_load_buddy_gfp+0xc3/0x820 fs/ext4/mballoc.c:1448 ext4_discard_preallocations+0x84d/0x10e0 fs/ext4/mballoc.c:5021 ext4_release_file+0x16e/0x300 fs/ext4/file.c:166 __fput+0x3b7/0x890 fs/file_table.c:321 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f135323e01b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffe32592560 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 00007f135323e01b RDX: 0000000000000000 RSI: 0000001b2c325b50 RDI: 0000000000000007 RBP: 00007f13533ad980 R08: 0000000000000000 R09: 000000001c72a5ee R10: 0000000000000000 R11: 0000000000000293 R12: 000000000005f287 R13: 00007ffe32592660 R14: 00007ffe32592680 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_get_group_info+0x399/0x3a0 fs/ext4/ext4.h:3332 Code: 4f ff 8b 74 24 04 48 c7 c7 a0 ac 0b 8d 4c 89 f2 e8 0c 1b 2e 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 77 22 4f ff <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00 RSP: 0018:ffffc9001605fad0 EFLAGS: 00010293 RAX: ffffffff823b5719 RBX: 000000001cdb94a1 RCX: ffff8880330dd7c0 RDX: 0000000000000000 RSI: 000000001cdb94a1 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffff823b53e9 R09: ffffed100658487d R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100ef81ccf R13: dffffc0000000000 R14: ffff888078a88000 R15: ffff888077c0e678 FS: 0000555556ad7400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2fc4185998 CR3: 000000001e279000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400