__free_contig_range_common+0x174/0x340 mm/page_alloc.c:7054
 __free_contig_range mm/page_alloc.c:7099 [inline]
 free_pages_bulk+0x48/0x120 mm/page_alloc.c:5304
 vm_area_free_pages mm/vmalloc.c:3471 [inline]
 vfree+0x22c/0x490 mm/vmalloc.c:3520
 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:880 [inline]
 get_entries net/ipv6/netfilter/ip6_tables.c:1037 [inline]
 do_ip6t_get_ctl+0xf3e/0x12f0 net/ipv6/netfilter/ip6_tables.c:1678
 nf_getsockopt+0x26e/0x290 net/netfilter/nf_sockopt.c:116
 ipv6_getsockopt+0x213/0x2c0 net/ipv6/ipv6_sockglue.c:1464
 do_sock_getsockopt+0x51d/0x7e0 net/socket.c:2503
 __sys_getsockopt net/socket.c:2534 [inline]
 __do_sys_getsockopt net/socket.c:2541 [inline]
 __se_sys_getsockopt net/socket.c:2538 [inline]
 __x64_sys_getsockopt+0x1a4/0x240 net/socket.c:2538
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 7939 Comm: syz.3.699 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__filemap_add_folio+0x128c/0x1400 mm/filemap.c:858
Code: ff 4c 89 f7 48 c7 c6 20 0f 19 8c e8 fe 5e 1f ff 90 0f 0b e8 d6 3e bf ff 48 8b 7c 24 20 48 c7 c6 e0 03 19 8c e8 e5 5e 1f ff 90 <0f> 0b e8 bd 3e bf ff 4c 89 f7 48 c7 c6 20 0f 19 8c e8 ce 5e 1f ff
RSP: 0018:ffffc900044471a0 EFLAGS: 00010246
RAX: 02107f59258cbd00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8e82b24f RDI: ffff888012718000
RBP: ffffc90004447338 R08: ffff8880b8524713 R09: 1ffff110170a48e2
R10: dffffc0000000000 R11: ffffed10170a48e3 R12: dffffc0000000000
R13: ffff888023cab6c0 R14: 0000000000000002 R15: ffff888023cab7d8
FS:  00007fd4167d56c0(0000) GS:ffff88812495b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f15be9556c8 CR3: 0000000073f54000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x251/0x4e0 mm/filemap.c:972
 ra_alloc_folio mm/readahead.c:470 [inline]
 page_cache_ra_order+0x6d1/0xee0 mm/readahead.c:535
 do_sync_mmap_readahead+0x75e/0x990 mm/filemap.c:3443
 filemap_fault+0x7d9/0x13b0 mm/filemap.c:3597
 __do_fault+0x138/0x2a0 mm/memory.c:5534
 do_read_fault mm/memory.c:5969 [inline]
 do_fault mm/memory.c:6103 [inline]
 do_pte_missing+0x2215/0x34b0 mm/memory.c:4663
 handle_pte_fault mm/memory.c:6527 [inline]
 __handle_mm_fault mm/memory.c:6676 [inline]
 handle_mm_fault+0x1a53/0x3750 mm/memory.c:6843
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x1670/0x2750 mm/gup.c:1428
 populate_vma_page_range+0x2be/0x3c0 mm/gup.c:1860
 __mm_populate+0x25f/0x390 mm/gup.c:1963
 mm_populate include/linux/mm.h:4269 [inline]
 vm_mmap_pgoff+0x353/0x4e0 mm/util.c:586
 ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:619
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd41859e159
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:00007fd4167d5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fd418826090 RCX: 00007fd41859e159
RDX: 0000000000000007 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fd418635024 R08: 0000000000000004 R09: 000000002cb25000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd418826128 R14: 00007fd418826090 R15: 00007fff167a6dd8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x128c/0x1400 mm/filemap.c:858
Code: ff 4c 89 f7 48 c7 c6 20 0f 19 8c e8 fe 5e 1f ff 90 0f 0b e8 d6 3e bf ff 48 8b 7c 24 20 48 c7 c6 e0 03 19 8c e8 e5 5e 1f ff 90 <0f> 0b e8 bd 3e bf ff 4c 89 f7 48 c7 c6 20 0f 19 8c e8 ce 5e 1f ff
RSP: 0018:ffffc900044471a0 EFLAGS: 00010246
RAX: 02107f59258cbd00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8e82b24f RDI: ffff888012718000
RBP: ffffc90004447338 R08: ffff8880b8524713 R09: 1ffff110170a48e2
R10: dffffc0000000000 R11: ffffed10170a48e3 R12: dffffc0000000000
R13: ffff888023cab6c0 R14: 0000000000000002 R15: ffff888023cab7d8
FS:  00007fd4167d56c0(0000) GS:ffff88812485b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000f000 CR3: 0000000073f54000 CR4: 00000000003526f0