BUG: Bad page state in process syz.0.0 pfn:13887 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888013887640 pfn:0x13887 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: ffff888013887640 3ffffffffffffffe 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5322, tgid 5321 (syz.0.0), ts 101565026041 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmems net/core/page_pool.c:688 [inline] page_pool_alloc_frag_netmem+0x561/0x9b0 net/core/page_pool.c:1090 page_pool_alloc_netmem include/net/page_pool/helpers.h:131 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc2c/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 5278 tgid 5278 ts 101482428504 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __slab_free+0x274/0x2c0 mm/slub.c:5823 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:361 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010 alloc_filename fs/namei.c:147 [inline] do_getname+0x2e/0x250 fs/namei.c:187 getname include/linux/fs.h:2560 [inline] getname_maybe_null include/linux/fs.h:2567 [inline] class_filename_maybe_null_constructor include/linux/fs.h:2591 [inline] vfs_fstatat+0x45/0x170 fs/stat.c:368 __do_sys_newfstatat fs/stat.c:538 [inline] __se_sys_newfstatat fs/stat.c:532 [inline] __x64_sys_newfstatat+0x151/0x200 fs/stat.c:532 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 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:14592 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14592 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617199556 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 1 tgid 1 ts 30434970614 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 free_reserved_page include/linux/mm.h:4083 [inline] __free_reserved_area mm/memblock.c:926 [inline] free_reserved_area+0x204/0x2e0 mm/memblock.c:957 free_init_pages arch/x86/mm/init.c:936 [inline] free_kernel_image_pages+0xa2/0x100 arch/x86/mm/init.c:952 kernel_init+0x36/0x1d0 init/main.c:1574 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:14591 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14591 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617186025 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 1 tgid 1 ts 30434963202 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 free_reserved_page include/linux/mm.h:4083 [inline] __free_reserved_area mm/memblock.c:926 [inline] free_reserved_area+0x204/0x2e0 mm/memblock.c:957 free_init_pages arch/x86/mm/init.c:936 [inline] free_kernel_image_pages+0xa2/0x100 arch/x86/mm/init.c:952 kernel_init+0x36/0x1d0 init/main.c:1574 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:14590 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14590 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617171087 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 1 tgid 1 ts 30434956452 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 free_reserved_page include/linux/mm.h:4083 [inline] __free_reserved_area mm/memblock.c:926 [inline] free_reserved_area+0x204/0x2e0 mm/memblock.c:957 free_init_pages arch/x86/mm/init.c:936 [inline] free_kernel_image_pages+0xa2/0x100 arch/x86/mm/init.c:952 kernel_init+0x36/0x1d0 init/main.c:1574 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:0beff page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x90 pfn:0xbeff flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 0000000000000090 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617139820 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 29 tgid 29 ts 97570486234 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __folio_put+0x4b3/0x590 mm/folio.c:106 folio_put include/linux/mm.h:2160 [inline] migrate_folio_done mm/migrate.c:1209 [inline] migrate_folio_move mm/migrate.c:1440 [inline] migrate_folios_move mm/migrate.c:1749 [inline] migrate_pages_batch+0x3c61/0x4f50 mm/migrate.c:2005 migrate_pages_sync mm/migrate.c:2035 [inline] migrate_pages+0x1b9f/0x2920 mm/migrate.c:2144 compact_zone+0x34ba/0x4ca0 mm/compaction.c:2698 compact_node+0x210/0x310 mm/compaction.c:2945 kcompactd+0xc0b/0x12c0 mm/compaction.c:3243 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:0befe page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8f pfn:0xbefe flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 000000000000008f 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617121448 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 29 tgid 29 ts 97570512690 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __folio_put+0x4b3/0x590 mm/folio.c:106 folio_put include/linux/mm.h:2160 [inline] migrate_folio_done mm/migrate.c:1209 [inline] migrate_folio_move mm/migrate.c:1440 [inline] migrate_folios_move mm/migrate.c:1749 [inline] migrate_pages_batch+0x3c61/0x4f50 mm/migrate.c:2005 migrate_pages_sync mm/migrate.c:2035 [inline] migrate_pages+0x1b9f/0x2920 mm/migrate.c:2144 compact_zone+0x34ba/0x4ca0 mm/compaction.c:2698 compact_node+0x210/0x310 mm/compaction.c:2945 kcompactd+0xc0b/0x12c0 mm/compaction.c:3243 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:0befd page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8e pfn:0xbefd flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 000000000000008e 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617109201 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 29 tgid 29 ts 97570531346 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __folio_put+0x4b3/0x590 mm/folio.c:106 folio_put include/linux/mm.h:2160 [inline] migrate_folio_done mm/migrate.c:1209 [inline] migrate_folio_move mm/migrate.c:1440 [inline] migrate_folios_move mm/migrate.c:1749 [inline] migrate_pages_batch+0x3c61/0x4f50 mm/migrate.c:2005 migrate_pages_sync mm/migrate.c:2035 [inline] migrate_pages+0x1b9f/0x2920 mm/migrate.c:2144 compact_zone+0x34ba/0x4ca0 mm/compaction.c:2698 compact_node+0x210/0x310 mm/compaction.c:2945 kcompactd+0xc0b/0x12c0 mm/compaction.c:3243 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:0befc page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8d pfn:0xbefc flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 000000000000008d 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617097931 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 29 tgid 29 ts 97570553831 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __folio_put+0x4b3/0x590 mm/folio.c:106 folio_put include/linux/mm.h:2160 [inline] migrate_folio_done mm/migrate.c:1209 [inline] migrate_folio_move mm/migrate.c:1440 [inline] migrate_folios_move mm/migrate.c:1749 [inline] migrate_pages_batch+0x3c61/0x4f50 mm/migrate.c:2005 migrate_pages_sync mm/migrate.c:2035 [inline] migrate_pages+0x1b9f/0x2920 mm/migrate.c:2144 compact_zone+0x34ba/0x4ca0 mm/compaction.c:2698 compact_node+0x210/0x310 mm/compaction.c:2945 kcompactd+0xc0b/0x12c0 mm/compaction.c:3243 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:0befb page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8c pfn:0xbefb flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 000000000000008c 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617087007 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 29 tgid 29 ts 101239588977 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __folio_put+0x4b3/0x590 mm/folio.c:106 folio_put include/linux/mm.h:2160 [inline] migrate_folio_done mm/migrate.c:1209 [inline] migrate_folio_move mm/migrate.c:1440 [inline] migrate_folios_move mm/migrate.c:1749 [inline] migrate_pages_batch+0x3c61/0x4f50 mm/migrate.c:2005 migrate_pages_sync mm/migrate.c:2035 [inline] migrate_pages+0x1b9f/0x2920 mm/migrate.c:2144 compact_zone+0x34ba/0x4ca0 mm/compaction.c:2698 compact_node+0x210/0x310 mm/compaction.c:2945 kcompactd+0xc0b/0x12c0 mm/compaction.c:3243 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:0befa page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8b pfn:0xbefa flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 000000000000008b 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617075611 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 29 tgid 29 ts 101239615408 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __folio_put+0x4b3/0x590 mm/folio.c:106 folio_put include/linux/mm.h:2160 [inline] migrate_folio_done mm/migrate.c:1209 [inline] migrate_folio_move mm/migrate.c:1440 [inline] migrate_folios_move mm/migrate.c:1749 [inline] migrate_pages_batch+0x3c61/0x4f50 mm/migrate.c:2005 migrate_pages_sync mm/migrate.c:2035 [inline] migrate_pages+0x1b9f/0x2920 mm/migrate.c:2144 compact_zone+0x34ba/0x4ca0 mm/compaction.c:2698 compact_node+0x210/0x310 mm/compaction.c:2945 kcompactd+0xc0b/0x12c0 mm/compaction.c:3243 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:0bef9 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8a pfn:0xbef9 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 000000000000008a 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617063536 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 29 tgid 29 ts 101239640658 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __folio_put+0x4b3/0x590 mm/folio.c:106 folio_put include/linux/mm.h:2160 [inline] migrate_folio_done mm/migrate.c:1209 [inline] migrate_folio_move mm/migrate.c:1440 [inline] migrate_folios_move mm/migrate.c:1749 [inline] migrate_pages_batch+0x3c61/0x4f50 mm/migrate.c:2005 migrate_pages_sync mm/migrate.c:2035 [inline] migrate_pages+0x1b9f/0x2920 mm/migrate.c:2144 compact_zone+0x34ba/0x4ca0 mm/compaction.c:2698 compact_node+0x210/0x310 mm/compaction.c:2945 kcompactd+0xc0b/0x12c0 mm/compaction.c:3243 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8 BUG: Bad page state in process syz.0.0 pfn:0bef8 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x89 pfn:0xbef8 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff8880002e0000 0000000000000000 raw: 0000000000000089 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5323, tgid 5321 (syz.0.0), ts 101617048856 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471 alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline] __page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc08/0x18e0 net/core/skbuff.c:990 netif_skb_check_for_xdp net/core/dev.c:5652 [inline] netif_receive_generic_xdp net/core/dev.c:5693 [inline] do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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 page last free pid 29 tgid 29 ts 101239740092 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __folio_put+0x4b3/0x590 mm/folio.c:106 folio_put include/linux/mm.h:2160 [inline] migrate_folio_done mm/migrate.c:1209 [inline] migrate_folio_move mm/migrate.c:1440 [inline] migrate_folios_move mm/migrate.c:1749 [inline] migrate_pages_batch+0x3c61/0x4f50 mm/migrate.c:2005 migrate_pages_sync mm/migrate.c:2035 [inline] migrate_pages+0x1b9f/0x2920 mm/migrate.c:2144 compact_zone+0x34ba/0x4ca0 mm/compaction.c:2698 compact_node+0x210/0x310 mm/compaction.c:2945 kcompactd+0xc0b/0x12c0 mm/compaction.c:3243 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:647 free_page_is_bad mm/page_alloc.c:1082 [inline] __free_pages_prepare mm/page_alloc.c:1409 [inline] __free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962 bpf_xdp_shrink_data net/core/filter.c:4383 [inline] bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407 ____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline] bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:779 [inline] bpf_prog_run_xdp include/net/xdp.h:701 [inline] bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579 netif_receive_generic_xdp net/core/dev.c:5699 [inline] do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761 tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 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: 0033:0x7f054b55ea0e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f054c530f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f054c5316c0 RCX: 00007f054b55ea0e RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8 RBP: 00007f054b635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f054b826128 R14: 00007f054b826090 R15: 00007ffe7f94b1a8