irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 10943 Comm: syz.5.1281 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__filemap_add_folio+0x11ee/0x1360 mm/filemap.c:858
Code: ff 4c 89 f7 48 c7 c6 20 f5 d7 8b e8 9c fc 22 ff 90 0f 0b e8 a4 4f c1 ff 48 8b 7c 24 08 48 c7 c6 e0 e9 d7 8b e8 83 fc 22 ff 90 <0f> 0b e8 8b 4f c1 ff 4c 89 f7 48 c7 c6 20 f5 d7 8b e8 6c fc 22 ff
RSP: 0018:ffffc9000526f5c0 EFLAGS: 00010246
RAX: e5e0164609580100 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfe348e RDI: 00000000ffffffff
RBP: ffffc9000526f740 R08: ffffffff9032f8f7 R09: 1ffffffff2065f1e
R10: dffffc0000000000 R11: fffffbfff2065f1f R12: dffffc0000000000
R13: ffff888027107bc0 R14: 0000000000000002 R15: ffff888027107cd8
FS:  00005555767a1500(0000) GS:ffff888125220000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb1c43eb540 CR3: 0000000078ed3000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x25e/0x530 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:470 [inline]
 page_cache_ra_order+0x6d1/0xee0 mm/readahead.c:535
 do_sync_mmap_readahead+0x75e/0x990 mm/filemap.c:3428
 filemap_fault+0x7d9/0x13b0 mm/filemap.c:3582
 __do_fault+0x138/0x2a0 mm/memory.c:5425
 do_shared_fault mm/memory.c:5924 [inline]
 do_fault mm/memory.c:5998 [inline]
 do_pte_missing+0x684/0x34b0 mm/memory.c:4566
 handle_pte_fault mm/memory.c:6379 [inline]
 __handle_mm_fault mm/memory.c:6517 [inline]
 handle_mm_fault+0x1b36/0x3080 mm/memory.c:6686
 do_user_addr_fault+0xa4d/0x1340 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7f95624675a2
Code: 30 48 8b 14 24 48 85 d2 74 17 8b 44 24 10 0f c8 89 c0 48 89 44 24 10 48 83 fa 01 0f 85 aa 02 00 00 48 8b 44 24 18 8b 74 24 10 <89> 30 e9 1e fe ff ff 48 8b 44 24 18 8b 10 48 8b 04 24 48 85 c0 0f
RSP: 002b:00007fff71055ee0 EFLAGS: 00010246
RAX: 00002000000001c0 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00005555767a13d8
RBP: 00007fff71056000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00007fff71056040
R13: 00007f956282618c R14: 000000000009233f R15: 00007f9562826180
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11ee/0x1360 mm/filemap.c:858
Code: ff 4c 89 f7 48 c7 c6 20 f5 d7 8b e8 9c fc 22 ff 90 0f 0b e8 a4 4f c1 ff 48 8b 7c 24 08 48 c7 c6 e0 e9 d7 8b e8 83 fc 22 ff 90 <0f> 0b e8 8b 4f c1 ff 4c 89 f7 48 c7 c6 20 f5 d7 8b e8 6c fc 22 ff
RSP: 0018:ffffc9000526f5c0 EFLAGS: 00010246
RAX: e5e0164609580100 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfe348e RDI: 00000000ffffffff
RBP: ffffc9000526f740 R08: ffffffff9032f8f7 R09: 1ffffffff2065f1e
R10: dffffc0000000000 R11: fffffbfff2065f1f R12: dffffc0000000000
R13: ffff888027107bc0 R14: 0000000000000002 R15: ffff888027107cd8
FS:  00005555767a1500(0000) GS:ffff888125320000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033