handle_softirqs+0x286/0x870 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:1052 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:1530! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 17472 Comm: syz.4.2845 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:folio_end_read+0x1e9/0x230 mm/filemap.c:1530 Code: 79 c7 ff 48 89 df 48 c7 c6 20 6d 74 8b e8 0f e1 2e ff 90 0f 0b e8 d7 79 c7 ff 48 89 df 48 c7 c6 40 63 74 8b e8 f8 e0 2e ff 90 <0f> 0b e8 c0 79 c7 ff 48 89 df 48 c7 c6 20 6d 74 8b e8 e1 e0 2e ff RSP: 0018:ffffc9000d377608 EFLAGS: 00010246 RAX: 28d3e4226af02800 RBX: ffffea0001997a00 RCX: 0000000000000000 RDX: 0000000000000006 RSI: ffffffff8d77b493 RDI: 00000000ffffffff RBP: 0000000000000000 R08: ffffffff8f7d6777 R09: 1ffffffff1efacee R10: dffffc0000000000 R11: fffffbfff1efacef R12: 1ffffd4000332f41 R13: 1ffffd4000332f40 R14: ffffea0001997a08 R15: 00fff20000004020 FS: 00007f7b906076c0(0000) GS:ffff888125fe5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe54bbff000 CR3: 000000007bdd8000 CR4: 00000000003526f0 Call Trace: iomap_read_folio+0x383/0x580 fs/iomap/buffered-io.c:482 iomap_bio_read_folio include/linux/iomap.h:597 [inline] erofs_read_folio+0x13c/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:1006 [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+0x148/0x340 fs/erofs/namei.c:206 lookup_one_qstr_excl+0x131/0x360 fs/namei.c:1705 filename_create+0x224/0x3c0 fs/namei.c:4227 do_mkdirat+0xa0/0x590 fs/namei.c:4478 __do_sys_mkdirat fs/namei.c:4503 [inline] __se_sys_mkdirat fs/namei.c:4501 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4501 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: 0033:0x7f7b8f78efc9 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:00007f7b90607038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f7b8f9e5fa0 RCX: 00007f7b8f78efc9 RDX: 00000000000001c1 RSI: 0000200000000100 RDI: ffffffffffffff9c RBP: 00007f7b8f811f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7b8f9e6038 R14: 00007f7b8f9e5fa0 R15: 00007ffe0e966af8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_end_read+0x1e9/0x230 mm/filemap.c:1530 Code: 79 c7 ff 48 89 df 48 c7 c6 20 6d 74 8b e8 0f e1 2e ff 90 0f 0b e8 d7 79 c7 ff 48 89 df 48 c7 c6 40 63 74 8b e8 f8 e0 2e ff 90 <0f> 0b e8 c0 79 c7 ff 48 89 df 48 c7 c6 20 6d 74 8b e8 e1 e0 2e ff RSP: 0018:ffffc9000d377608 EFLAGS: 00010246 RAX: 28d3e4226af02800 RBX: ffffea0001997a00 RCX: 0000000000000000 RDX: 0000000000000006 RSI: ffffffff8d77b493 RDI: 00000000ffffffff RBP: 0000000000000000 R08: ffffffff8f7d6777 R09: 1ffffffff1efacee R10: dffffc0000000000 R11: fffffbfff1efacef R12: 1ffffd4000332f41 R13: 1ffffd4000332f40 R14: ffffea0001997a08 R15: 00fff20000004020 FS: 00007f7b906076c0(0000) GS:ffff888125ee5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f91e41b12f8 CR3: 000000007bdd8000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400