BUG: Bad page state in process syz.2.1964  pfn:4d421
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88804d421f00 pfn:0x4d421
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 0000000000000000
raw: ffff88804d421f00 3fffffffffffffff 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 13450, tgid 13448 (syz.2.1964), ts 185793699827, free_ts 185784172636
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_frag_netmem+0x219/0x9c0 net/core/page_pool.c:1038
 page_pool_alloc_netmem include/net/page_pool/helpers.h:131 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x584/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Not tainted 6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:4302c
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x48a0 pfn:0x4302c
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 0000000000000000
raw: 00000000000048a0 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 13450, tgid 13448 (syz.2.1964), ts 185793692565, free_ts 185784181758
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:359e1
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffffffffffffffff pfn:0x359e1
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 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 13450, tgid 13448 (syz.2.1964), ts 185793685215, free_ts 185784190654
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:49552
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x49552
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 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 13450, tgid 13448 (syz.2.1964), ts 185793677962, free_ts 185784199565
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:3ec44
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802c546b80 pfn:0x3ec44
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 0000000000000000
raw: ffff88802c546b80 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 13450, tgid 13448 (syz.2.1964), ts 185793671087, free_ts 185784208360
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:32ff5
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x32ff5
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 0000000000000000
raw: ffff888000000000 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 13450, tgid 13448 (syz.2.1964), ts 185793615046, free_ts 185784217522
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:54bd1
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802cb5e0c0 pfn:0x54bd1
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 0000000000000000
raw: ffff88802cb5e0c0 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 13450, tgid 13448 (syz.2.1964), ts 185793608844, free_ts 185784226807
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:3a843
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88803a843f00 pfn:0x3a843
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 0000000000000000
raw: ffff88803a843f00 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 13450, tgid 13448 (syz.2.1964), ts 185793602044, free_ts 185784236113
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:4302a
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x489e pfn:0x4302a
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 0000000000000000
raw: 000000000000489e 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 13450, tgid 13448 (syz.2.1964), ts 185793595798, free_ts 185784244967
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:616f5
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x200000000 pfn:0x616f5
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 0000000000000000
raw: 0000000200000000 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 13450, tgid 13448 (syz.2.1964), ts 185793588835, free_ts 185784254269
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:589b9
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x589b9
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 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 13450, tgid 13448 (syz.2.1964), ts 185793582193, free_ts 185784263338
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
BUG: Bad page state in process syz.2.1964  pfn:3ec43
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3ec43
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022379000 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 13450, tgid 13448 (syz.2.1964), ts 185793575016, free_ts 185784272530
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 __alloc_pages_noprof mm/page_alloc.c:4993 [inline]
 alloc_pages_bulk_noprof+0x71c/0x1410 mm/page_alloc.c:4913
 alloc_pages_bulk_node_noprof include/linux/gfp.h:254 [inline]
 __page_pool_alloc_pages_slow+0x193/0xc30 net/core/page_pool.c:567
 page_pool_alloc_netmems net/core/page_pool.c:618 [inline]
 page_pool_alloc_netmems+0xc4/0x190 net/core/page_pool.c:605
 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
 page_pool_alloc include/net/page_pool/helpers.h:160 [inline]
 page_pool_dev_alloc include/net/page_pool/helpers.h:181 [inline]
 skb_pp_cow_data+0x7c0/0xff0 net/core/skbuff.c:952
 skb_cow_data_for_xdp+0x88/0xb0 net/core/skbuff.c:986
 netif_skb_check_for_xdp net/core/dev.c:5329 [inline]
 netif_receive_generic_xdp net/core/dev.c:5370 [inline]
 do_xdp_generic+0x530/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
page last free pid 15 tgid 15 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2879 [inline]
 pagetable_dtor_free include/linux/mm.h:2977 [inline]
 __tlb_remove_table include/asm-generic/tlb.h:220 [inline]
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x116/0x1a0 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0x799/0x14e0 kernel/rcu/tree.c:2832
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 13450 Comm: syz.2.1964 Tainted: G    B               6.16.0-rc2-syzkaller-00269-g11313e2f7812 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 bad_page+0xcf/0x220 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:939 [inline]
 free_page_is_bad mm/page_alloc.c:933 [inline]
 free_pages_prepare mm/page_alloc.c:1240 [inline]
 __free_frozen_pages+0x824/0x1180 mm/page_alloc.c:2706
 page_frag_free+0x27f/0x2e0 mm/page_frag_cache.c:169
 __xdp_return+0x38e/0xa90 net/core/xdp.c:448
 bpf_xdp_shrink_data net/core/filter.c:4172 [inline]
 bpf_xdp_frags_shrink_tail net/core/filter.c:4192 [inline]
 ____bpf_xdp_adjust_tail net/core/filter.c:4217 [inline]
 bpf_xdp_adjust_tail+0xa11/0xfd0 net/core/filter.c:4210
 bpf_prog_f476d5219b92964a+0x1e/0x24
 __bpf_prog_run include/linux/filter.h:718 [inline]
 bpf_prog_run_xdp include/net/xdp.h:657 [inline]
 bpf_prog_run_generic_xdp+0x626/0x1530 net/core/dev.c:5260
 netif_receive_generic_xdp net/core/dev.c:5376 [inline]
 do_xdp_generic+0x8e6/0x1320 net/core/dev.c:5438
 __netif_receive_skb_core.constprop.0+0x161c/0x4a00 net/core/dev.c:5788
 __netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:5975
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x137/0x7b0 net/core/dev.c:6235
 tun_rx_batched.isra.0+0x3ee/0x740 drivers/net/tun.c:1509
 tun_get_user+0x28a2/0x3b80 drivers/net/tun.c:1938
 tun_chr_write_iter+0xdc/0x210 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x6c4/0x1150 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec6ed8d3df
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:00007fec6fb99000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fec6efb5fa0 RCX: 00007fec6ed8d3df
RDX: 000000000000fe53 RSI: 0000200000000440 RDI: 00000000000000c8
RBP: 00007fec6ee10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe53 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fec6efb5fa0 R15: 00007ffd6677ee38
 </TASK>
bridge0: port 1(syz_tun) entered disabled state
syz_tun (unregistering): left allmulticast mode
syz_tun (unregistering): left promiscuous mode
bridge0: port 1(syz_tun) entered disabled state