handle_softirqs+0x27d/0x880 kernel/softirq.c:626
 __do_softirq kernel/softirq.c:660 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:727
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
------------[ cut here ]------------
kernel BUG at mm/filemap.c:1531!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 13081 Comm: syz.1.1951 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:folio_end_read+0x22e/0x230 mm/filemap.c:1531
Code: 54 c7 ff 48 89 df 48 c7 c6 80 84 74 8b e8 8a 89 2d ff 90 0f 0b e8 92 54 c7 ff 48 89 df 48 c7 c6 e0 7c 74 8b e8 73 89 2d ff 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa
RSP: 0018:ffffc90004bdf328 EFLAGS: 00010246
RAX: e3358f14c3291500 RBX: ffffea0001918500 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8d78e538 RDI: 00000000ffffffff
RBP: 0000000000000001 R08: ffffffff8f7de477 R09: 1ffffffff1efbc8e
R10: dffffc0000000000 R11: fffffbfff1efbc8f R12: 1ffffd40003230a1
R13: 1ffffd40003230a0 R14: ffffea0001918508 R15: 0000000000000008
FS:  00007f778fc836c0(0000) GS:ffff888125ebc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8d5db42f8 CR3: 000000001f742000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 iomap_read_folio+0x373/0x580 fs/iomap/buffered-io.c:578
 iomap_bio_read_folio include/linux/iomap.h:598 [inline]
 erofs_read_folio+0x12c/0x2e0 fs/erofs/data.c:374
 filemap_read_folio+0x117/0x380 mm/filemap.c:2496
 do_read_cache_folio+0x358/0x590 mm/filemap.c:4095
 read_mapping_folio include/linux/pagemap.h:1017 [inline]
 erofs_bread+0x46f/0x7f0 fs/erofs/data.c:40
 erofs_find_target_block fs/erofs/namei.c:103 [inline]
 erofs_namei+0x36b/0x1030 fs/erofs/namei.c:177
 erofs_lookup+0x138/0x340 fs/erofs/namei.c:206
 __lookup_slow+0x297/0x3d0 fs/namei.c:1855
 lookup_slow+0x53/0x70 fs/namei.c:1872
 walk_component+0x2d2/0x400 fs/namei.c:2190
 lookup_last fs/namei.c:2691 [inline]
 path_lookupat+0x163/0x430 fs/namei.c:2715
 filename_lookup+0x212/0x570 fs/namei.c:2744
 __do_sys_move_mount fs/namespace.c:4472 [inline]
 __se_sys_move_mount+0x32c/0x560 fs/namespace.c:4425
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f778ed8f749
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:00007f778fc83038 EFLAGS: 00000246 ORIG_RAX: 00000000000001ad
RAX: ffffffffffffffda RBX: 00007f778efe5fa0 RCX: 00007f778ed8f749
RDX: ffffffffffffff9c RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007f778ee13f91 R08: 0000000000000100 R09: 0000000000000000
R10: 0000200000000180 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f778efe6038 R14: 00007f778efe5fa0 R15: 00007ffd6851ed18
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_end_read+0x22e/0x230 mm/filemap.c:1531
Code: 54 c7 ff 48 89 df 48 c7 c6 80 84 74 8b e8 8a 89 2d ff 90 0f 0b e8 92 54 c7 ff 48 89 df 48 c7 c6 e0 7c 74 8b e8 73 89 2d ff 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa
RSP: 0018:ffffc90004bdf328 EFLAGS: 00010246
RAX: e3358f14c3291500 RBX: ffffea0001918500 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8d78e538 RDI: 00000000ffffffff
RBP: 0000000000000001 R08: ffffffff8f7de477 R09: 1ffffffff1efbc8e
R10: dffffc0000000000 R11: fffffbfff1efbc8f R12: 1ffffd40003230a1
R13: 1ffffd40003230a0 R14: ffffea0001918508 R15: 0000000000000008
FS:  00007f778fc836c0(0000) GS:ffff888125fbc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3814fb42f8 CR3: 000000001f742000 CR4: 00000000003526f0