free_pages_and_swap_cache+0x277/0x520 mm/swap_state.c:264 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline] tlb_batch_pages_flush mm/mmu_gather.c:149 [inline] tlb_flush_mmu_free mm/mmu_gather.c:397 [inline] tlb_flush_mmu+0x3a0/0x680 mm/mmu_gather.c:404 zap_pte_range mm/memory.c:1765 [inline] zap_pmd_range mm/memory.c:1818 [inline] zap_pud_range mm/memory.c:1847 [inline] zap_p4d_range mm/memory.c:1868 [inline] unmap_page_range+0x3b31/0x4370 mm/memory.c:1889 unmap_single_vma mm/memory.c:1932 [inline] unmap_vmas+0x399/0x580 mm/memory.c:1976 exit_mmap+0x248/0xb50 mm/mmap.c:1280 __mmput+0x118/0x430 kernel/fork.c:1129 exit_mm+0x1da/0x2c0 kernel/exit.c:582 do_exit+0x648/0x2300 kernel/exit.c:949 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:154! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 7526 Comm: syz.0.435 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:filemap_unaccount_folio+0x715/0x790 mm/filemap.c:154 Code: a4 c9 ff 48 89 df 48 c7 c6 e0 3b 94 8b e8 63 f1 31 ff 90 0f 0b e8 2b a4 c9 ff 48 89 df 48 c7 c6 c0 3a 94 8b e8 4c f1 31 ff 90 <0f> 0b e8 14 a4 c9 ff 48 89 df 48 c7 c6 e0 3b 94 8b e8 35 f1 31 ff RSP: 0018:ffffc9001c40ee20 EFLAGS: 00010046 RAX: 604ff729a8a17a00 RBX: ffffea0001530000 RCX: 604ff729a8a17a00 RDX: 0000000000000005 RSI: ffffffff8dba8b31 RDI: ffff88802e97da00 RBP: 0000000000000001 R08: ffff8880b8624253 R09: 1ffff110170c484a R10: dffffc0000000000 R11: ffffed10170c484b R12: 0000000000000040 R13: 1ffffd40002a6000 R14: 1ffffd40002a6001 R15: ffffea0001530008 FS: 00007f47129916c0(0000) GS:ffff888125c15000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000030e9f0 CR3: 000000007f730000 CR4: 00000000003526f0 Call Trace: __filemap_remove_folio+0xc3/0x500 mm/filemap.c:223 filemap_remove_folio+0xe6/0x1f0 mm/filemap.c:253 hugetlb_delete_from_page_cache fs/hugetlbfs/inode.c:331 [inline] remove_inode_single_folio fs/hugetlbfs/inode.c:536 [inline] remove_inode_hugepages+0x594/0x1100 fs/hugetlbfs/inode.c:593 hugetlbfs_punch_hole fs/hugetlbfs/inode.c:716 [inline] hugetlbfs_fallocate+0xbc7/0x1100 fs/hugetlbfs/inode.c:742 vfs_fallocate+0x669/0x7e0 fs/open.c:342 madvise_remove mm/madvise.c:1049 [inline] madvise_vma_behavior+0x3254/0x3af0 mm/madvise.c:1346 madvise_walk_vmas+0x51c/0xa30 mm/madvise.c:1669 madvise_do_behavior+0x38e/0x550 mm/madvise.c:1885 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/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4714b8eba9 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:00007f4712991038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007f4714dd6270 RCX: 00007f4714b8eba9 RDX: 0000000000000009 RSI: 0000000000600002 RDI: 0000200000000000 RBP: 00007f4714c11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4714dd6308 R14: 00007f4714dd6270 R15: 00007f4714effa28 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:filemap_unaccount_folio+0x715/0x790 mm/filemap.c:154 Code: a4 c9 ff 48 89 df 48 c7 c6 e0 3b 94 8b e8 63 f1 31 ff 90 0f 0b e8 2b a4 c9 ff 48 89 df 48 c7 c6 c0 3a 94 8b e8 4c f1 31 ff 90 <0f> 0b e8 14 a4 c9 ff 48 89 df 48 c7 c6 e0 3b 94 8b e8 35 f1 31 ff RSP: 0018:ffffc9001c40ee20 EFLAGS: 00010046 RAX: 604ff729a8a17a00 RBX: ffffea0001530000 RCX: 604ff729a8a17a00 RDX: 0000000000000005 RSI: ffffffff8dba8b31 RDI: ffff88802e97da00 RBP: 0000000000000001 R08: ffff8880b8624253 R09: 1ffff110170c484a R10: dffffc0000000000 R11: ffffed10170c484b R12: 0000000000000040 R13: 1ffffd40002a6000 R14: 1ffffd40002a6001 R15: ffffea0001530008 FS: 00007f47129916c0(0000) GS:ffff888125c15000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000030e9f0 CR3: 000000007f730000 CR4: 00000000003526f0