BUG: Bad page state in process syz.0.17  pfn:51b52
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51b52
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 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 6404, tgid 6403 (syz.0.17), ts 104714212573, free_ts 99792761615
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 Not tainted syzkaller #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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b53
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51b53
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 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 6404, tgid 6403 (syz.0.17), ts 104714203859, free_ts 99792766565
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b54
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51b54
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 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 6404, tgid 6403 (syz.0.17), ts 104714193936, free_ts 99792771768
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b55
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51b55
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 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 6404, tgid 6403 (syz.0.17), ts 104714184375, free_ts 99792776952
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b56
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51b56
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 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 6404, tgid 6403 (syz.0.17), ts 104714173775, free_ts 99792782526
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b57
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51b57
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 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 6404, tgid 6403 (syz.0.17), ts 104714163862, free_ts 99792788406
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b58
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888051b5e000 pfn:0x51b58
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 0000000000000000
raw: ffff888051b5e000 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 6404, tgid 6403 (syz.0.17), ts 104714156721, free_ts 99792793977
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b59
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffffffffffffffff pfn:0x51b59
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 0000000000000000
raw: ffffffffffffffff 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 6404, tgid 6403 (syz.0.17), ts 104714149884, free_ts 99792799926
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b5a
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51b5a
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 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 6404, tgid 6403 (syz.0.17), ts 104714143147, free_ts 99792806036
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b5b
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51b5b
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 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 6404, tgid 6403 (syz.0.17), ts 104714136368, free_ts 99792811473
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>
BUG: Bad page state in process syz.0.17  pfn:51b5c
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51b5c
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88802198b000 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 6404, tgid 6403 (syz.0.17), ts 104714129578, free_ts 99792817769
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x132b/0x38e0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:5148
 __alloc_pages_noprof mm/page_alloc.c:5182 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:5102
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_netmems_slow+0x193/0xc60 net/core/page_pool.c:569
 page_pool_alloc_netmems net/core/page_pool.c:620 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:607
 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+0x7c0/0xff0 net/core/skbuff.c:951
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:985
 netif_skb_check_for_xdp net/core/dev.c:5341 [inline]
 netif_receive_generic_xdp net/core/dev.c:5382 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
page last free pid 6320 tgid 6320 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 vfree+0x1fd/0xb50 mm/vmalloc.c:3434
 kcov_put kernel/kcov.c:439 [inline]
 kcov_put kernel/kcov.c:435 [inline]
 kcov_close+0x34/0x60 kernel/kcov.c:535
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x419/0x4e0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 6404 Comm: syz.0.17 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~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:650
 free_page_is_bad mm/page_alloc.c:1083 [inline]
 free_page_is_bad mm/page_alloc.c:1077 [inline]
 free_pages_prepare mm/page_alloc.c:1387 [inline]
 __free_frozen_pages+0x7f7/0x10f0 mm/page_alloc.c:2895
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x3ab/0xab0 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4188 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4212 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4234 [inline]
 bpf_xdp_adjust_tail+0x887/0xcb0 net/core/filter.c:4227
 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:721 [inline]
 bpf_prog_run_xdp include/net/xdp.h:662 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5272
 netif_receive_generic_xdp net/core/dev.c:5388 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5450
 __netif_receive_skb_core.constprop.0+0x15e5/0x4bd0 net/core/dev.c:5801
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5989
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6104
 netif_receive_skb_internal net/core/dev.c:6190 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6249
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28bb/0x3cd0 drivers/net/tun.c:1953
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1999
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d3/0x11d0 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/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff08ef8d65f
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:00007ff08fe76000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff08f1d5fa0 RCX: 00007ff08ef8d65f
RDX: 0000000000011dc0 RSI: 00002000000004c0 RDI: 00000000000000c8
RBP: 00007ff08f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ff08f1d6038 R14: 00007ff08f1d5fa0 R15: 00007ffe7bd5cdf8
 </TASK>