vfs_getattr fs/stat.c:259 [inline] vfs_fstat+0x4b/0xe0 fs/stat.c:281 __do_sys_newfstat+0x87/0x100 fs/stat.c:555 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/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: 1 UID: 0 PID: 6423 Comm: syz.1.289 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__filemap_add_folio+0xf29/0x11b0 mm/filemap.c:858 Code: 9d c6 ff 48 c7 c6 c0 ec 99 8b 4c 89 ef e8 ef 6d 11 00 90 0f 0b e8 07 9d c6 ff 48 c7 c6 20 ed 99 8b 4c 89 ef e8 d8 6d 11 00 90 <0f> 0b e8 f0 9c c6 ff 90 0f 0b 90 e9 1c fc ff ff e8 e2 9c c6 ff 48 RSP: 0018:ffffc900038bf840 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888022fac980 RSI: ffffffff81f846c8 RDI: ffff888022face04 RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff90887cd7 R11: 0000000000000001 R12: 0000000000000002 R13: ffffea000142ff00 R14: 0000000000000000 R15: 0000000000000000 FS: 000055557de41500(0000) GS:ffff8880d69fd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000080 CR3: 000000001294b000 CR4: 0000000000352ef0 Call Trace: filemap_add_folio+0x19a/0x610 mm/filemap.c:966 ra_alloc_folio mm/readahead.c:453 [inline] page_cache_ra_order+0x637/0xed0 mm/readahead.c:512 do_sync_mmap_readahead mm/filemap.c:3400 [inline] filemap_fault+0x16ac/0x29d0 mm/filemap.c:3549 __do_fault+0x10d/0x490 mm/memory.c:5320 do_shared_fault mm/memory.c:5819 [inline] do_fault+0x302/0x1ad0 mm/memory.c:5893 do_pte_missing mm/memory.c:4401 [inline] handle_pte_fault mm/memory.c:6273 [inline] __handle_mm_fault+0x1919/0x2bb0 mm/memory.c:6411 handle_mm_fault+0x3fe/0xad0 mm/memory.c:6580 do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x64/0xc0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x7f0ec5158b88 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:00007ffd8ca030d8 EFLAGS: 00010202 RAX: 0000200000000080 RBX: 0000000000000004 RCX: 0030626c6c756e2f RDX: 000000000000000c RSI: 6c756e2f7665642f RDI: 0000200000000080 RBP: 0000000000000000 R08: 0000001b2d920000 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000009 R12: 00007f0ec53e5fac R13: 00007f0ec53e5fa0 R14: fffffffffffffffe R15: 0000000000000006 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0xf29/0x11b0 mm/filemap.c:858 Code: 9d c6 ff 48 c7 c6 c0 ec 99 8b 4c 89 ef e8 ef 6d 11 00 90 0f 0b e8 07 9d c6 ff 48 c7 c6 20 ed 99 8b 4c 89 ef e8 d8 6d 11 00 90 <0f> 0b e8 f0 9c c6 ff 90 0f 0b 90 e9 1c fc ff ff e8 e2 9c c6 ff 48 RSP: 0018:ffffc900038bf840 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888022fac980 RSI: ffffffff81f846c8 RDI: ffff888022face04 RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff90887cd7 R11: 0000000000000001 R12: 0000000000000002 R13: ffffea000142ff00 R14: 0000000000000000 R15: 0000000000000000 FS: 000055557de41500(0000) GS:ffff8880d68fd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c008f66000 CR3: 000000001294b000 CR4: 0000000000352ef0