EXT4-fs error (device loop3) in ext4_reserve_inode_write:5839: Corrupt filesystem
EXT4-fs error (device loop3): __ext4_ext_dirty:202: inode #18: comm syz-executor.3: mark_inode_dirty error
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kernel BUG at fs/ext4/ext4.h:3331!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 23609 Comm: syz-executor.3 Not tainted 6.1.21-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:ext4_get_group_info+0x399/0x3a0 fs/ext4/ext4.h:3331
Code: 4f ff 8b 74 24 04 48 c7 c7 00 c5 0b 8d 4c 89 f2 e8 dc 94 24 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 f7 da 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:ffffc9000345f3b0 EFLAGS: 00010283
RAX: ffffffff8239ace9 RBX: 00000000ffffe428 RCX: 0000000000040000
RDX: ffffc90016800000 RSI: 0000000000021a0c RDI: 0000000000021a0d
RBP: 0000000000000001 R08: ffffffff8239a9b9 R09: ffffed100e1c273c
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100bd3f4cf
R13: dffffc0000000000 R14: ffff88805e9fe000 R15: ffff88805e9fa678
FS:  00007fa5c7847700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa02d55f050 CR3: 000000007ea4b000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 ext4_mb_load_buddy_gfp+0xc3/0x820 fs/ext4/mballoc.c:1448
 ext4_discard_preallocations+0x851/0x1150 fs/ext4/mballoc.c:5021
 ext4_truncate+0x9a3/0x1290 fs/ext4/inode.c:4269
 ext4_truncate_failed_write fs/ext4/truncate.h:22 [inline]
 ext4_write_begin+0xac1/0xf80 fs/ext4/inode.c:1262
 ext4_da_write_begin+0x30a/0x9c0 fs/ext4/inode.c:2986
 generic_perform_write+0x2fc/0x5e0 mm/filemap.c:3754
 ext4_buffered_write_iter+0x122/0x3a0 fs/ext4/file.c:285
 ext4_file_write_iter+0x1d2/0x18f0
 call_write_iter include/linux/fs.h:2205 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x7ae/0xba0 fs/read_write.c:584
 ksys_write+0x19c/0x2c0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa5c6a8c0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa5c7847168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa5c6babf80 RCX: 00007fa5c6a8c0f9
RDX: 000000000208e24b RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007fa5c6ae7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe21139fcf R14: 00007fa5c7847300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_get_group_info+0x399/0x3a0 fs/ext4/ext4.h:3331
Code: 4f ff 8b 74 24 04 48 c7 c7 00 c5 0b 8d 4c 89 f2 e8 dc 94 24 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 f7 da 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:ffffc9000345f3b0 EFLAGS: 00010283
RAX: ffffffff8239ace9 RBX: 00000000ffffe428 RCX: 0000000000040000
RDX: ffffc90016800000 RSI: 0000000000021a0c RDI: 0000000000021a0d
RBP: 0000000000000001 R08: ffffffff8239a9b9 R09: ffffed100e1c273c
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100bd3f4cf
R13: dffffc0000000000 R14: ffff88805e9fe000 R15: ffff88805e9fa678
FS:  00007fa5c7847700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30222000 CR3: 000000007ea4b000 CR4: 00000000003506e0