kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4612 [inline]
 slab_alloc_node mm/slub.c:4945 [inline]
 kmem_cache_alloc_noprof+0x26b/0x6a0 mm/slub.c:4959
 alloc_filename fs/namei.c:147 [inline]
 do_getname+0x35/0x390 fs/namei.c:187
 class_filename_flags_constructor include/linux/fs.h:2561 [inline]
 do_sys_openat2+0xc7/0x1e0 fs/open.c:1367
 do_sys_open fs/open.c:1374 [inline]
 __do_sys_openat fs/open.c:1390 [inline]
 __se_sys_openat fs/open.c:1385 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1385
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 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: 9169 Comm: syz.1.802 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+0xfc2/0x12a0 mm/filemap.c:858
Code: 50 c1 ff 48 c7 c6 e0 92 bd 8b 4c 89 ef e8 c6 ea 12 00 90 0f 0b e8 fe 4f c1 ff 48 c7 c6 40 93 bd 8b 4c 89 ef e8 af ea 12 00 90 <0f> 0b e8 e7 4f c1 ff 48 c7 c6 c0 93 bd 8b 4c 89 ef e8 98 ea 12 00
RSP: 0018:ffffc9000402f820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000112c00 RCX: 0000000000000000
RDX: ffff888074ca2540 RSI: ffffffff825b1ae8 RDI: ffff888074ca2a04
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000002
R13: ffffea00015227c0 R14: 0000000000000000 R15: 0000000000000000
FS:  000055556301b500(0000) GS:ffff8881242e7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000002a7030 CR3: 0000000056c85000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f7 DR2: 00000000ffffffff
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 filemap_add_folio+0x1d3/0x630 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:470 [inline]
 page_cache_ra_order+0x602/0xed0 mm/readahead.c:535
 do_sync_mmap_readahead mm/filemap.c:3428 [inline]
 filemap_fault+0x1943/0x3130 mm/filemap.c:3582
 __do_fault+0x10b/0x440 mm/memory.c:5425
 do_shared_fault mm/memory.c:5924 [inline]
 do_fault+0x2db/0x1750 mm/memory.c:5998
 do_pte_missing mm/memory.c:4566 [inline]
 handle_pte_fault mm/memory.c:6379 [inline]
 __handle_mm_fault+0x187d/0x2a00 mm/memory.c:6517
 handle_mm_fault+0x37b/0xa30 mm/memory.c:6686
 do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7f3f73d6d488
Code: 66 89 74 17 02 88 0f c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 0f 1f 44 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 62 e1 fe 28 6f 54 16 ff 62 e1 fe 28 6f
RSP: 002b:00007ffd8d77a5d8 EFLAGS: 00010202
RAX: 0000200000000040 RBX: 0000000000000004 RCX: 0030626c6c756e2f
RDX: 000000000000000c RSI: 6c756e2f7665642f RDI: 0000200000000040
RBP: fffffffffffffffe R08: 0000001b32420000 R09: 0000000000000001
R10: 7ffffffffffffff3 R11: 0000000000000009 R12: 00007ffd8d77a700
R13: 00007f3f7401609c R14: 00000000000663de R15: 00007f3f74016090
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xfc2/0x12a0 mm/filemap.c:858
Code: 50 c1 ff 48 c7 c6 e0 92 bd 8b 4c 89 ef e8 c6 ea 12 00 90 0f 0b e8 fe 4f c1 ff 48 c7 c6 40 93 bd 8b 4c 89 ef e8 af ea 12 00 90 <0f> 0b e8 e7 4f c1 ff 48 c7 c6 c0 93 bd 8b 4c 89 ef e8 98 ea 12 00
RSP: 0018:ffffc9000402f820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000112c00 RCX: 0000000000000000
RDX: ffff888074ca2540 RSI: ffffffff825b1ae8 RDI: ffff888074ca2a04
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000002
R13: ffffea00015227c0 R14: 0000000000000000 R15: 0000000000000000
FS:  000055556301b500(0000) GS:ffff8881242e7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005589ec0dfb31 CR3: 0000000056c85000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f7 DR2: 00000000ffffffff
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400