EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4.h:2870! EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 30679 Comm: syz-executor266 Not tainted 4.19.183-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2870 [inline] RIP: 0010:ext4_mb_load_buddy_gfp+0xfdd/0x1560 fs/ext4/mballoc.c:1116 Code: 0f 87 3c fc ff ff 4c 89 e7 e8 1f b8 a2 ff e9 93 fc ff ff e9 3d fa ff ff e9 9f f7 ff ff 4c 89 e7 e8 68 30 a8 ff e9 bd fb ff ff <0f> 0b 8b 55 bc 44 89 e6 4c 89 ff e8 53 de ff ff 85 c0 41 89 c5 0f RSP: 0018:ffff8881d3dc7bd8 EFLAGS: 00010286 RAX: dffffc0000000000 RBX: ffff8881d3dc7d50 RCX: 1ffff1103b439430 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881da1ca180 RBP: ffff8881d3dc7c48 R08: 1ffff1103e62ed20 R09: ffffed1038858100 R10: ffffed1038858100 R11: ffff8881c42c0803 R12: 00000000fffcef43 R13: ffff8881da1ca140 R14: ffff8881e809c780 R15: ffff8881e809c100 FS: 0000000002451300(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000245a628 CR3: 00000001d281a005 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_discard_preallocations+0x9f1/0xe70 fs/ext4/mballoc.c:4089 ext4_release_file+0x236/0x2b0 fs/ext4/file.c:98 __fput+0x249/0x7f0 fs/file_table.c:278 ____fput+0x9/0x10 fs/file_table.c:309 task_work_run+0x108/0x180 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x185/0x1e0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x413/0x4e0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4074db 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 03 fd 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 41 fd ff ff 8b 44 RSP: 002b:00007ffd041661c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00000000004074db RDX: ffffffffffffffb8 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffd04166210 R13: 00000000004ce52c R14: 00000000004027f0 R15: 00007ffd04166280 Modules linked in: ---[ end trace 954737998a29f1c7 ]--- RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2870 [inline] RIP: 0010:ext4_mb_load_buddy_gfp+0xfdd/0x1560 fs/ext4/mballoc.c:1116 Code: 0f 87 3c fc ff ff 4c 89 e7 e8 1f b8 a2 ff e9 93 fc ff ff e9 3d fa ff ff e9 9f f7 ff ff 4c 89 e7 e8 68 30 a8 ff e9 bd fb ff ff <0f> 0b 8b 55 bc 44 89 e6 4c 89 ff e8 53 de ff ff 85 c0 41 89 c5 0f RSP: 0018:ffff8881d3dc7bd8 EFLAGS: 00010286 RAX: dffffc0000000000 RBX: ffff8881d3dc7d50 RCX: 1ffff1103b439430 EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881da1ca180 RBP: ffff8881d3dc7c48 R08: 1ffff1103e62ed20 R09: ffffed1038858100 R10: ffffed1038858100 R11: ffff8881c42c0803 R12: 00000000fffcef43 R13: ffff8881da1ca140 R14: ffff8881e809c780 R15: ffff8881e809c100 FS: 0000000002451300(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000245a628 CR3: 00000001d281a004 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400