__do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x60/0x150 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0x57/0xc0 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:859! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 10031 Comm: syz.4.1271 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__filemap_add_folio+0x118b/0x12d0 mm/filemap.c:858 Code: ca c7 ff 4c 89 e7 48 c7 c6 c0 b0 74 8b e8 7d da 2e ff 90 0f 0b e8 45 ca c7 ff 4c 89 e7 48 c7 c6 a0 a7 74 8b e8 66 da 2e ff 90 <0f> 0b e8 2e ca c7 ff 4c 89 e7 48 c7 c6 c0 b0 74 8b e8 4f da 2e ff RSP: 0018:ffffc9000516f1e0 EFLAGS: 00010246 RAX: 13b7c5a140887900 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d791ef3 RDI: 00000000ffffffff RBP: ffffc9000516f360 R08: ffffffff8f822177 R09: 1ffffffff1f0442e R10: dffffc0000000000 R11: fffffbfff1f0442f R12: ffffea0001421cc0 R13: dffffc0000000000 R14: ffffea0001421cc8 R15: 0000000000000004 FS: 00007f5e56ee16c0(0000) GS:ffff888125e21000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9809773000 CR3: 0000000058fde000 CR4: 0000000000350ef0 Call Trace: filemap_add_folio+0x26d/0x540 mm/filemap.c:966 ra_alloc_folio mm/readahead.c:453 [inline] page_cache_ra_order+0x6a7/0xe50 mm/readahead.c:512 do_sync_mmap_readahead+0x66a/0x870 mm/filemap.c:3400 filemap_fault+0x6ac/0x1290 mm/filemap.c:3549 __do_fault+0x138/0x390 mm/memory.c:5320 do_read_fault mm/memory.c:5755 [inline] do_fault mm/memory.c:5889 [inline] do_pte_missing+0x2206/0x3330 mm/memory.c:4401 handle_pte_fault mm/memory.c:6273 [inline] __handle_mm_fault mm/memory.c:6411 [inline] handle_mm_fault+0x1b26/0x32b0 mm/memory.c:6580 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x1650/0x29f0 mm/gup.c:1428 populate_vma_page_range+0x29f/0x3a0 mm/gup.c:1860 __mm_populate+0x24c/0x380 mm/gup.c:1963 mm_populate include/linux/mm.h:3701 [inline] vm_mmap_pgoff+0x387/0x4d0 mm/util.c:586 ksys_mmap_pgoff+0x51f/0x760 mm/mmap.c:604 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5e55f8f749 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:00007f5e56ee1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f5e561e6090 RCX: 00007f5e55f8f749 RDX: 0000000001000002 RSI: 0000000000b36000 RDI: 0000200000000000 RBP: 00007f5e56013f91 R08: 0000000000000004 R09: 000000002c93a000 R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5e561e6128 R14: 00007f5e561e6090 R15: 00007ffd7270b468 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0x118b/0x12d0 mm/filemap.c:858 Code: ca c7 ff 4c 89 e7 48 c7 c6 c0 b0 74 8b e8 7d da 2e ff 90 0f 0b e8 45 ca c7 ff 4c 89 e7 48 c7 c6 a0 a7 74 8b e8 66 da 2e ff 90 <0f> 0b e8 2e ca c7 ff 4c 89 e7 48 c7 c6 c0 b0 74 8b e8 4f da 2e ff RSP: 0018:ffffc9000516f1e0 EFLAGS: 00010246 RAX: 13b7c5a140887900 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d791ef3 RDI: 00000000ffffffff RBP: ffffc9000516f360 R08: ffffffff8f822177 R09: 1ffffffff1f0442e R10: dffffc0000000000 R11: fffffbfff1f0442f R12: ffffea0001421cc0 R13: dffffc0000000000 R14: ffffea0001421cc8 R15: 0000000000000004 FS: 00007f5e56ee16c0(0000) GS:ffff888125e21000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556a132608 CR3: 0000000058fde000 CR4: 0000000000350ef0