BUG: Bad page state in process syz-executor285 pfn:2d302 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2d302 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 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 5820, tgid 5820 (syz-executor285), ts 62999485029, free_ts 54592867285 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5807 tgid 5807 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:2d301 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8 pfn:0x2d301 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000 raw: 0000000000000008 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 5820, tgid 5820 (syz-executor285), ts 62999478821, free_ts 55944947211 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5810 tgid 5810 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:2d300 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802d304000 pfn:0x2d300 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000 raw: ffff88802d304000 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 5820, tgid 5820 (syz-executor285), ts 62999472559, free_ts 55944400344 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5810 tgid 5810 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:72d3b page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d3b flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 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 5820, tgid 5820 (syz-executor285), ts 62999466297, free_ts 54575113729 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5807 tgid 5807 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:72d3a page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d3a flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 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 5820, tgid 5820 (syz-executor285), ts 62999460106, free_ts 54575122306 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5807 tgid 5807 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:72d39 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d39 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 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 5820, tgid 5820 (syz-executor285), ts 62999453972, free_ts 54575963863 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5807 tgid 5807 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:72d38 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d38 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 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 5820, tgid 5820 (syz-executor285), ts 62999447572, free_ts 54575218247 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5807 tgid 5807 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:76907 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76907 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 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 5820, tgid 5820 (syz-executor285), ts 62999441200, free_ts 54582364655 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5807 tgid 5807 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:76906 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76906 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 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 5820, tgid 5820 (syz-executor285), ts 62999421067, free_ts 54582851254 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5807 tgid 5807 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:76905 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76905 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 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 5820, tgid 5820 (syz-executor285), ts 62999414838, free_ts 54582871367 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5807 tgid 5807 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50 BUG: Bad page state in process syz-executor285 pfn:76904 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76904 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff888022ab2000 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 5820, tgid 5820 (syz-executor285), ts 62999408239, free_ts 54582895841 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_alloc include/net/page_pool/helpers.h:129 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline] skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983 netif_skb_check_for_xdp net/core/dev.c:5041 [inline] netif_receive_generic_xdp net/core/dev.c:5080 [inline] do_xdp_generic+0x505/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 page last free pid 5807 tgid 5807 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657 __folio_put+0x2c7/0x440 mm/swap.c:112 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:224 [inline] pipe_read+0x6ed/0x13e0 fs/pipe.c:344 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x991/0xb70 fs/read_write.c:565 ksys_read+0x18f/0x2b0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x176/0x1d0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:923 [inline] free_pages_prepare mm/page_alloc.c:1119 [inline] free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657 bpf_xdp_shrink_data net/core/filter.c:4148 [inline] bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169 ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline] bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187 bpf_prog_f476d5219b92964a+0x1e/0x20 __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973 netif_receive_generic_xdp net/core/dev.c:5086 [inline] do_xdp_generic+0x757/0xd30 net/core/dev.c:5148 __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 netif_receive_skb_internal net/core/dev.c:5871 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550 tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f941abf7db0 Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0 RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058 R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50