handle_mm_fault+0x40a/0x8e0 mm/memory.c:6532 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x1650/0x29f0 mm/gup.c:1428 __get_user_pages_locked mm/gup.c:1692 [inline] faultin_page_range+0x240/0x8d0 mm/gup.c:1912 madvise_populate mm/madvise.c:979 [inline] madvise_do_behavior+0x2e7/0x550 mm/madvise.c:1883 page last free pid 15 tgid 15 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1395 [inline] __free_frozen_pages+0xbc8/0xd30 mm/page_alloc.c:2948 rcu_do_batch kernel/rcu/tree.c:2605 [inline] rcu_core+0xcab/0x1770 kernel/rcu/tree.c:2861 handle_softirqs+0x286/0x870 kernel/softirq.c:622 run_ksoftirqd+0x9b/0x100 kernel/softirq.c:1063 smpboot_thread_fn+0x542/0xa60 kernel/smpboot.c:160 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:871! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 16333 Comm: syz.6.2324 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:870 Code: 0d c8 ff 4c 89 e7 48 c7 c6 a0 65 74 8b e8 3b 7f 2f ff 90 0f 0b e8 53 0d c8 ff 4c 89 e7 48 c7 c6 80 5c 74 8b e8 24 7f 2f ff 90 <0f> 0b e8 3c 0d c8 ff 4c 89 e7 48 c7 c6 a0 65 74 8b e8 0d 7f 2f ff RSP: 0018:ffffc9000ff271e0 EFLAGS: 00010246 RAX: 11b9a46c2d4f6f00 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d8708af RDI: 00000000ffffffff RBP: ffffc9000ff27348 R08: ffffffff8f9eff77 R09: 1ffffffff1f3dfee R10: dffffc0000000000 R11: fffffbfff1f3dfef R12: ffffea0000be7600 R13: dffffc0000000000 R14: ffffea0000be7608 R15: 0000000000000004 FS: 00007f1e71b896c0(0000) GS:ffff888125ddc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1e71b46f98 CR3: 000000004d2c2000 CR4: 00000000003526f0 Call Trace: filemap_add_folio+0x26d/0x540 mm/filemap.c:978 ra_alloc_folio mm/readahead.c:453 [inline] page_cache_ra_order+0x6be/0xe70 mm/readahead.c:512 do_sync_mmap_readahead+0x66a/0x870 mm/filemap.c:3354 filemap_fault+0x6bc/0x12b0 mm/filemap.c:3503 __do_fault+0x138/0x390 mm/memory.c:5324 do_shared_fault mm/memory.c:5806 [inline] do_fault mm/memory.c:5880 [inline] do_pte_missing mm/memory.c:4405 [inline] handle_pte_fault mm/memory.c:6221 [inline] __handle_mm_fault+0x1842/0x5440 mm/memory.c:6363 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6532 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x1650/0x29f0 mm/gup.c:1428 __get_user_pages_locked mm/gup.c:1692 [inline] faultin_page_range+0x240/0x8d0 mm/gup.c:1912 madvise_populate mm/madvise.c:979 [inline] madvise_do_behavior+0x2e7/0x550 mm/madvise.c:1883 do_madvise+0x1bc/0x270 mm/madvise.c:1978 __do_sys_madvise mm/madvise.c:1987 [inline] __se_sys_madvise mm/madvise.c:1985 [inline] __x64_sys_madvise+0xa7/0xc0 mm/madvise.c:1985 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1e70d8efc9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1e71b89038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007f1e70fe5fa0 RCX: 00007f1e70d8efc9 RDX: 0000000000000017 RSI: 0000000000c00000 RDI: 0000200000000000 RBP: 00007f1e70e11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1e70fe6038 R14: 00007f1e70fe5fa0 R15: 00007ffcd31ca4e8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:870 Code: 0d c8 ff 4c 89 e7 48 c7 c6 a0 65 74 8b e8 3b 7f 2f ff 90 0f 0b e8 53 0d c8 ff 4c 89 e7 48 c7 c6 80 5c 74 8b e8 24 7f 2f ff 90 <0f> 0b e8 3c 0d c8 ff 4c 89 e7 48 c7 c6 a0 65 74 8b e8 0d 7f 2f ff RSP: 0018:ffffc9000ff271e0 EFLAGS: 00010246 RAX: 11b9a46c2d4f6f00 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d8708af RDI: 00000000ffffffff RBP: ffffc9000ff27348 R08: ffffffff8f9eff77 R09: 1ffffffff1f3dfee R10: dffffc0000000000 R11: fffffbfff1f3dfef R12: ffffea0000be7600 R13: dffffc0000000000 R14: ffffea0000be7608 R15: 0000000000000004 FS: 00007f1e71b896c0(0000) GS:ffff888125cdc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1e71b66fe0 CR3: 000000004d2c2000 CR4: 00000000003526f0