------------[ cut here ]------------ kernel BUG at mm/filemap.c:859! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 10903 Comm: syz.5.1071 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 RIP: 0010:__filemap_add_folio+0x1204/0x1350 mm/filemap.c:858 Code: ec c5 ff 4c 89 e7 48 c7 c6 a0 9e d7 8b e8 24 2a 29 ff 90 0f 0b e8 fc eb c5 ff 4c 89 e7 48 c7 c6 40 93 d7 8b e8 0d 2a 29 ff 90 <0f> 0b e8 e5 eb c5 ff 4c 89 e7 48 c7 c6 a0 9e d7 8b e8 f6 29 29 ff RSP: 0018:ffffc9000c907140 EFLAGS: 00010246 RAX: 75013f1ec8b41300 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8dedfdef RDI: 00000000ffffffff RBP: ffffc9000c9072c0 R08: ffffffff90104db7 R09: 1ffffffff20209b6 R10: dffffc0000000000 R11: fffffbfff20209b7 R12: ffffea00010ca780 R13: dffffc0000000000 R14: ffff88802444d900 R15: 0000000000000004 FS: 00007f2841dcb6c0(0000) GS:ffff8881253af000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3e6a34da08 CR3: 0000000026058000 CR4: 00000000003526f0 Call Trace: filemap_add_folio+0x264/0x530 mm/filemap.c:966 ra_alloc_folio mm/readahead.c:453 [inline] page_cache_ra_order+0x6a8/0xe50 mm/readahead.c:512 do_sync_mmap_readahead+0x6ad/0x8e0 mm/filemap.c:3400 filemap_fault+0x703/0x12d0 mm/filemap.c:3549 __do_fault+0x138/0x390 mm/memory.c:5373 do_shared_fault mm/memory.c:5872 [inline] do_fault mm/memory.c:5946 [inline] do_pte_missing+0x5c4/0x3750 mm/memory.c:4487 handle_pte_fault mm/memory.c:6326 [inline] __handle_mm_fault mm/memory.c:6464 [inline] handle_mm_fault+0x1bec/0x3310 mm/memory.c:6633 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x165b/0x29d0 mm/gup.c:1428 __get_user_pages_locked mm/gup.c:1692 [inline] faultin_page_range+0x240/0x8c0 mm/gup.c:1912 madvise_populate mm/madvise.c:974 [inline] madvise_do_behavior+0x2e5/0x540 mm/madvise.c:1933 do_madvise+0x1fa/0x2e0 mm/madvise.c:2028 __do_sys_madvise mm/madvise.c:2037 [inline] __se_sys_madvise mm/madvise.c:2035 [inline] __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:2035 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2840f9aeb9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2841dcb028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007f2841216180 RCX: 00007f2840f9aeb9 RDX: 0000000000000017 RSI: 0000000000800000 RDI: 00002000000ec000 RBP: 00007f2841008c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f2841216218 R14: 00007f2841216180 R15: 00007fffb753d398 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0x1204/0x1350 mm/filemap.c:858 Code: ec c5 ff 4c 89 e7 48 c7 c6 a0 9e d7 8b e8 24 2a 29 ff 90 0f 0b e8 fc eb c5 ff 4c 89 e7 48 c7 c6 40 93 d7 8b e8 0d 2a 29 ff 90 <0f> 0b e8 e5 eb c5 ff 4c 89 e7 48 c7 c6 a0 9e d7 8b e8 f6 29 29 ff RSP: 0018:ffffc9000c907140 EFLAGS: 00010246 RAX: 75013f1ec8b41300 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8dedfdef RDI: 00000000ffffffff RBP: ffffc9000c9072c0 R08: ffffffff90104db7 R09: 1ffffffff20209b6 R10: dffffc0000000000 R11: fffffbfff20209b7 R12: ffffea00010ca780 R13: dffffc0000000000 R14: ffff88802444d900 R15: 0000000000000004 FS: 00007f2841dcb6c0(0000) GS:ffff8881253af000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3e697e1858 CR3: 0000000026058000 CR4: 00000000003526f0