handle_softirqs+0x1ea/0xa00 kernel/softirq.c:622
 run_ksoftirqd kernel/softirq.c:1076 [inline]
 run_ksoftirqd+0x38/0x60 kernel/softirq.c:1068
 smpboot_thread_fn+0x3d3/0xaa0 kernel/smpboot.c:160
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 12270 Comm: syz.1.1691 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__filemap_add_folio+0xf81/0x1350 mm/filemap.c:859
Code: a5 9e c3 ff 48 8d 3d ae 01 97 0e 67 48 0f b9 3a e9 07 fd ff ff e8 8f 9e c3 ff 48 c7 c6 60 56 bd 8b 4c 89 ef e8 a0 bb 12 00 90 <0f> 0b 4c 8b 6c 24 60 e8 73 9e c3 ff 48 c7 84 24 a0 00 00 00 03 00
RSP: 0018:ffffc9000fb97820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88802fa34a00 RSI: ffffffff8257cc88 RDI: ffff88802fa34ec4
RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000004
R13: ffffea0000d8aa80 R14: 0000000000000000 R15: 1ffff92001f72f2f
FS:  0000555555793500(0000) GS:ffff88812436d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c2ffb8cda8 CR3: 000000007b65e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x1d8/0x690 mm/filemap.c:967
 ra_alloc_folio mm/readahead.c:456 [inline]
 page_cache_ra_order+0x614/0xf10 mm/readahead.c:515
 do_sync_mmap_readahead mm/filemap.c:3406 [inline]
 filemap_fault+0x1900/0x2e90 mm/filemap.c:3555
 __do_fault+0x10b/0x440 mm/memory.c:5458
 do_shared_fault mm/memory.c:5957 [inline]
 do_fault+0x2db/0x1750 mm/memory.c:6031
 do_pte_missing mm/memory.c:4550 [inline]
 handle_pte_fault mm/memory.c:6411 [inline]
 __handle_mm_fault+0x187d/0x2a00 mm/memory.c:6549
 handle_mm_fault+0x36d/0xa20 mm/memory.c:6718
 do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1334
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fcd1ea727f7
Code: 83 ea 01 48 d3 e2 44 89 c1 49 d3 e1 f7 d2 89 c1 22 17 49 f7 d1 89 d0 4c 21 ce 48 d3 e6 09 f0 88 07 c3 90 48 85 d2 75 98 89 f0 <88> 07 c3 48 89 d7 e8 6e 22 fe ff 66 2e 0f 1f 84 00 00 00 00 00 66
RSP: 002b:00007ffd1e936a18 EFLAGS: 00010246
RAX: 0000000000000012 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000200000000e40
RBP: 00007ffd1e936b40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000012 R11: 0000000000000000 R12: 00007ffd1e936b80
R13: 00007fcd1ee1609c R14: 00000000000af717 R15: 00007fcd1ee16090
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xf81/0x1350 mm/filemap.c:859
Code: a5 9e c3 ff 48 8d 3d ae 01 97 0e 67 48 0f b9 3a e9 07 fd ff ff e8 8f 9e c3 ff 48 c7 c6 60 56 bd 8b 4c 89 ef e8 a0 bb 12 00 90 <0f> 0b 4c 8b 6c 24 60 e8 73 9e c3 ff 48 c7 84 24 a0 00 00 00 03 00
RSP: 0018:ffffc9000fb97820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88802fa34a00 RSI: ffffffff8257cc88 RDI: ffff88802fa34ec4
RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000004
R13: ffffea0000d8aa80 R14: 0000000000000000 R15: 1ffff92001f72f2f
FS:  0000555555793500(0000) GS:ffff88812446d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f76843ea2f8 CR3: 000000007b65e000 CR4: 00000000003526f0