EXT4-fs error (device loop3): ext4_ext_map_blocks:4081: inode #17: comm syz-executor.3: bad extent address lblock: 169, depth: 1 pblock 0
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kernel BUG at fs/ext4/ext4.h:3357!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 13526 Comm: syz-executor.3 Not tainted 5.15.0-rc6-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:3357 [inline]
RIP: 0010:ext4_get_group_info+0x280/0x2e0 fs/ext4/ext4.h:3352
Code: 0f 85 a8 fe ff ff 48 c7 c2 80 f6 de 88 be b0 02 00 00 48 c7 c7 a0 f0 de 88 c6 05 73 7d 75 0a 01 e8 ea ba 31 06 e9 84 fe ff ff <0f> 0b e8 e9 df b3 ff e9 d4 fd ff ff e8 df df b3 ff e9 fc fd ff ff
RSP: 0018:ffffc900057bf5c8 EFLAGS: 00010213
RAX: 0000000000000000 RBX: ffff8880230d8000 RCX: 0000000000000001
RDX: 1ffff1100461b008 RSI: 00000000fffff95a RDI: ffff8880230d8040
RBP: ffff888075c0a000 R08: 0000000000000000 R09: ffff88805b0e397b
R10: ffffed100b61c72f R11: 000000000000003b R12: 00000000fffff95a
R13: ffff888075c0a678 R14: ffffc900057bf708 R15: ffff888075c0a000
FS:  00007f789ab1d700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7f6d637b30 CR3: 0000000072503000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_mb_load_buddy_gfp+0xc6/0xf50 fs/ext4/mballoc.c:1494
 ext4_discard_preallocations+0x768/0xc60 fs/ext4/mballoc.c:5011
 ext4_truncate+0x4c5/0x10c0 fs/ext4/inode.c:4201
 ext4_truncate_failed_write fs/ext4/truncate.h:22 [inline]
 ext4_write_begin+0x7b3/0xff0 fs/ext4/inode.c:1235
 ext4_da_write_begin+0x468/0x840 fs/ext4/inode.c:2944
 generic_perform_write+0x1c6/0x440 mm/filemap.c:3770
 ext4_buffered_write_iter+0x1ea/0x480 fs/ext4/file.c:269
 ext4_file_write_iter+0x383/0x1160 fs/ext4/file.c:680
 call_write_iter include/linux/fs.h:2163 [inline]
 new_sync_write+0x360/0x600 fs/read_write.c:507
 vfs_write+0x60b/0x900 fs/read_write.c:594
 ksys_write+0xf4/0x1d0 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f789ab1d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 000000000d4ba0ff RSI: 00000000200009c0 RDI: 0000000000000007
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffed0a9938f R14: 00007f789ab1d300 R15: 0000000000022000
Modules linked in:
---[ end trace 5fa28479f3a7de79 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3357 [inline]
RIP: 0010:ext4_get_group_info+0x280/0x2e0 fs/ext4/ext4.h:3352
Code: 0f 85 a8 fe ff ff 48 c7 c2 80 f6 de 88 be b0 02 00 00 48 c7 c7 a0 f0 de 88 c6 05 73 7d 75 0a 01 e8 ea ba 31 06 e9 84 fe ff ff <0f> 0b e8 e9 df b3 ff e9 d4 fd ff ff e8 df df b3 ff e9 fc fd ff ff
RSP: 0018:ffffc900057bf5c8 EFLAGS: 00010213
RAX: 0000000000000000 RBX: ffff8880230d8000 RCX: 0000000000000001
RDX: 1ffff1100461b008 RSI: 00000000fffff95a RDI: ffff8880230d8040
RBP: ffff888075c0a000 R08: 0000000000000000 R09: ffff88805b0e397b
R10: ffffed100b61c72f R11: 000000000000003b R12: 00000000fffff95a
R13: ffff888075c0a678 R14: ffffc900057bf708 R15: ffff888075c0a000
FS:  00007f789ab1d700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000002c9a848 CR3: 0000000072503000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400