BUG: Bad page state in process syz.1.1053  pfn:3b0cd
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008b5 pfn:0x3b0cd
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008b5 3fffffffffffffff 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 9380, tgid 9377 (syz.1.1053), ts 103227847907, free_ts 101034743441
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_frag_netmem+0x219/0x9c0 net/core/page_pool.c:1038
 page_pool_alloc_netmem include/net/page_pool/helpers.h:131 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x584/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Not tainted 6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:2acb3
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008b4 pfn:0x2acb3
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008b4 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 9380, tgid 9377 (syz.1.1053), ts 103227841238, free_ts 101034749781
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:259b4
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008b3 pfn:0x259b4
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008b3 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 9380, tgid 9377 (syz.1.1053), ts 103227834948, free_ts 101034755603
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:33153
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008b2 pfn:0x33153
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008b2 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 9380, tgid 9377 (syz.1.1053), ts 103227828221, free_ts 101034761485
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:218d1
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008b1 pfn:0x218d1
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008b1 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 9380, tgid 9377 (syz.1.1053), ts 103227821705, free_ts 101034767242
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:3395c
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008b0 pfn:0x3395c
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008b0 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 9380, tgid 9377 (syz.1.1053), ts 103227815332, free_ts 101034776005
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:3330b
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008af pfn:0x3330b
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008af 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 9380, tgid 9377 (syz.1.1053), ts 103227809003, free_ts 101034782267
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:5849a
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008ae pfn:0x5849a
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008ae 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 9380, tgid 9377 (syz.1.1053), ts 103227802607, free_ts 101034788147
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:605f2
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008ad pfn:0x605f2
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008ad 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 9380, tgid 9377 (syz.1.1053), ts 103227796309, free_ts 101034793789
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:58f2a
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008ac pfn:0x58f2a
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008ac 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 9380, tgid 9377 (syz.1.1053), ts 103227789675, free_ts 101034799663
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:5860a
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008ab pfn:0x5860a
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008ab 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 9380, tgid 9377 (syz.1.1053), ts 103227783087, free_ts 101034805423
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>
BUG: Bad page state in process syz.1.1053  pfn:5975f
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2000008aa pfn:0x5975f
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022275000 0000000000000000
raw: 00000002000008aa 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 9380, tgid 9377 (syz.1.1053), ts 103227776467, free_ts 101034811058
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 9154 tgid 9152 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 vfree+0x1fd/0xb50 mm/vmalloc.c:3426
 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132
 do_free_pages sound/core/pcm_memory.c:88 [inline]
 do_free_pages sound/core/pcm_memory.c:83 [inline]
 snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495
 do_hw_free sound/core/pcm_native.c:905 [inline]
 snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2729
 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2723
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2397 [inline]
 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2389 [inline]
 snd_pcm_oss_release+0x16f/0x310 sound/core/oss/pcm_oss.c:2576
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x864/0x2bd0 kernel/exit.c:955
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1104
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 9380 Comm: syz.1.1053 Tainted: G    B               6.16.0-rc2-syzkaller-00278-g3f75bfff44be #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d9bf8d3df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f6d9ce5c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d9c1b6160 RCX: 00007f6d9bf8d3df
RDX: 000000000000fdef RSI: 00002000000001c0 RDI: 00000000000000c8
RBP: 00007f6d9c010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6d9c1b6160 R15: 00007ffd8a60aa88
 </TASK>