------------[ cut here ]------------ kernel BUG at mm/filemap.c:858! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 2 UID: 0 PID: 18413 Comm: syz.2.2364 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__filemap_add_folio+0xf7f/0x1220 mm/filemap.c:858 Code: bc c5 ff 48 c7 c6 60 31 9d 8b 4c 89 ef e8 69 0e 12 00 90 0f 0b e8 21 bc c5 ff 48 c7 c6 c0 31 9d 8b 4c 89 ef e8 52 0e 12 00 90 <0f> 0b e8 0a bc c5 ff 90 0f 0b 90 e9 9b fe ff ff e8 fc bb c5 ff 90 RSP: 0018:ffffc90002857808 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000112cc0 RCX: 0000000000000000 RDX: ffff88805cd7c900 RSI: ffffffff825397e8 RDI: ffff88805cd7cd84 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000003 R12: 0000000000000002 R13: ffffea0000e4cd00 R14: 0000000000000000 R15: 1ffff9200050af2b FS: 00005555753f5500(0000) GS:ffff8880d67b3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f559de4e661 CR3: 000000005f3df000 CR4: 0000000000352ef0 Call Trace: 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: 0033:0x7f16ae16c648 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:00007ffe3189ed38 EFLAGS: 00010246 RAX: 0000200000000140 RBX: 0000000000000004 RCX: 0030656c69662f2e RDX: 0000000000000008 RSI: 0030656c69662f2e RDI: 0000200000000140 RBP: fffffffffffffffe R08: 0000001b2e820000 R09: 0000000000000001 R10: 7ffffffffffffff7 R11: 0000000000000009 R12: 00007ffe3189ee60 R13: 00007f16ae41618c R14: 0000000000035354 R15: 00007ffe3189ee40 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0xf7f/0x1220 mm/filemap.c:858 Code: bc c5 ff 48 c7 c6 60 31 9d 8b 4c 89 ef e8 69 0e 12 00 90 0f 0b e8 21 bc c5 ff 48 c7 c6 c0 31 9d 8b 4c 89 ef e8 52 0e 12 00 90 <0f> 0b e8 0a bc c5 ff 90 0f 0b 90 e9 9b fe ff ff e8 fc bb c5 ff 90 RSP: 0018:ffffc90002857808 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000112cc0 RCX: 0000000000000000 RDX: ffff88805cd7c900 RSI: ffffffff825397e8 RDI: ffff88805cd7cd84 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000003 R12: 0000000000000002 R13: ffffea0000e4cd00 R14: 0000000000000000 R15: 1ffff9200050af2b FS: 00005555753f5500(0000) GS:ffff8880d67b3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcc6ea7130 CR3: 000000005f3df000 CR4: 0000000000352ef0