getname_flags.part.0+0x4c/0x540 fs/namei.c:146
 getname_flags fs/namei.c:3575 [inline]
 user_path_at+0x9b/0x100 fs/namei.c:3575
 do_utimes_path fs/utimes.c:96 [inline]
 do_utimes+0xf5/0x290 fs/utimes.c:141
 __do_sys_utimensat fs/utimes.c:160 [inline]
 __se_sys_utimensat fs/utimes.c:144 [inline]
 __x64_sys_utimensat+0x1c6/0x290 fs/utimes.c:144
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:858!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 7056 Comm: syz.1.326 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:__filemap_add_folio+0xf7f/0x1220 mm/filemap.c:858
Code: c9 c6 ff 48 c7 c6 a0 18 9d 8b 4c 89 ef e8 19 0e 12 00 90 0f 0b e8 51 c9 c6 ff 48 c7 c6 00 19 9d 8b 4c 89 ef e8 02 0e 12 00 90 <0f> 0b e8 3a c9 c6 ff 90 0f 0b 90 e9 9b fe ff ff e8 2c c9 c6 ff 90
RSP: 0018:ffffc90003bd7808 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000112cc0 RCX: 0000000000000000
RDX: ffff888026f5a4c0 RSI: ffffffff825240e8 RDI: ffff888026f5a944
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000004
R13: ffffea0000c36f40 R14: 0000000000000000 R15: 1ffff9200077af2b
FS:  000055556b466500(0000) GS:ffff8881245d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fa1dff8 CR3: 000000007430f000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x1d8/0x690 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x614/0xfe0 mm/readahead.c:512
 do_sync_mmap_readahead mm/filemap.c:3400 [inline]
 filemap_fault+0x1b56/0x37c0 mm/filemap.c:3549
 __do_fault+0x10d/0x550 mm/memory.c:5323
 do_shared_fault mm/memory.c:5822 [inline]
 do_fault+0x2db/0x1990 mm/memory.c:5896
 do_pte_missing mm/memory.c:4404 [inline]
 handle_pte_fault mm/memory.c:6276 [inline]
 __handle_mm_fault+0x1807/0x2b50 mm/memory.c:6414
 handle_mm_fault+0x36d/0xa20 mm/memory.c:6583
 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: 0033:0x7f03186646e2
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:00007ffcfb81e860 EFLAGS: 00010246
RAX: 0000200000000580 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 000055556b4663d8
RBP: 00007ffcfb81e980 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000000 R12: 00007ffcfb81e9c0
R13: 00007f0318a15fac R14: 000000000001f0a1 R15: 00007ffcfb81e9a0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xf7f/0x1220 mm/filemap.c:858
Code: c9 c6 ff 48 c7 c6 a0 18 9d 8b 4c 89 ef e8 19 0e 12 00 90 0f 0b e8 51 c9 c6 ff 48 c7 c6 00 19 9d 8b 4c 89 ef e8 02 0e 12 00 90 <0f> 0b e8 3a c9 c6 ff 90 0f 0b 90 e9 9b fe ff ff e8 2c c9 c6 ff 90
RSP: 0018:ffffc90003bd7808 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000112cc0 RCX: 0000000000000000
RDX: ffff888026f5a4c0 RSI: ffffffff825240e8 RDI: ffff888026f5a944
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000004
R13: ffffea0000c36f40 R14: 0000000000000000 R15: 1ffff9200077af2b
FS:  000055556b466500(0000) GS:ffff8881245d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa9b59e8600 CR3: 000000007430f000 CR4: 00000000003526f0