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kernel BUG at fs/ext4/extents.c:4487!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 6197 Comm: syz.0.45 Not tainted 6.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:ext4_alloc_file_blocks+0xeb5/0xec0 fs/ext4/extents.c:4487
Code: b0 ff e9 86 f3 ff ff 44 89 e9 80 e1 07 fe c1 38 c1 0f 8c d3 f3 ff ff 4c 89 ef e8 96 16 b0 ff e9 c6 f3 ff ff e8 6c 5e 4b ff 90 <0f> 0b e8 14 ac 8a 09 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003817ae0 EFLAGS: 00010293
RAX: ffffffff82768104 RBX: 0000000000000000 RCX: ffff888030890000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003817ca0 R08: ffffffff827673ea R09: 1ffff1100f154b2f
R10: dffffc0000000000 R11: ffffed100f154b30 R12: ffff888078aa5bd8
R13: 0000000000000003 R14: 0000000000000011 R15: 0000004210000000
FS:  00007fad625fe6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007febc32ff000 CR3: 000000006ba98000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_zero_range+0x48a/0xd70 fs/ext4/extents.c:4637
 ext4_fallocate+0x54a/0x1ea0 fs/ext4/extents.c:4787
 vfs_fallocate+0x623/0x7a0 fs/open.c:338
 ksys_fallocate fs/open.c:362 [inline]
 __do_sys_fallocate fs/open.c:367 [inline]
 __se_sys_fallocate fs/open.c:365 [inline]
 __x64_sys_fallocate+0xbc/0x110 fs/open.c:365
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fad6338d169
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fad625fe038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fad635a6080 RCX: 00007fad6338d169
RDX: 0000000000000002 RSI: 0000000000000010 RDI: 0000000000000004
RBP: 00007fad6340e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000007fff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fad635a6080 R15: 00007fffcd60b288
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_alloc_file_blocks+0xeb5/0xec0 fs/ext4/extents.c:4487
Code: b0 ff e9 86 f3 ff ff 44 89 e9 80 e1 07 fe c1 38 c1 0f 8c d3 f3 ff ff 4c 89 ef e8 96 16 b0 ff e9 c6 f3 ff ff e8 6c 5e 4b ff 90 <0f> 0b e8 14 ac 8a 09 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003817ae0 EFLAGS: 00010293
RAX: ffffffff82768104 RBX: 0000000000000000 RCX: ffff888030890000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003817ca0 R08: ffffffff827673ea R09: 1ffff1100f154b2f
R10: dffffc0000000000 R11: ffffed100f154b30 R12: ffff888078aa5bd8
R13: 0000000000000003 R14: 0000000000000011 R15: 0000004210000000
FS:  00007fad625fe6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556e2c5608 CR3: 000000006ba98000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400