BUG: Bad page state in process syz.0.0  pfn:1225f
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x1225f
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 0000000000000000
raw: ffff888000000000 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 5321, tgid 5320 (syz.0.0), ts 83184396798, free_ts 40202606712
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 page_pool_alloc_netmems net/core/page_pool.c:593 [inline]
 page_pool_alloc_frag_netmem+0x59c/0x940 net/core/page_pool.c:998
 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+0xcea/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:12253
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x12253
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 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 5321, tgid 5320 (syz.0.0), ts 83184391265, free_ts 40202610241
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:1217d
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x1217d
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 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 5321, tgid 5320 (syz.0.0), ts 83184387169, free_ts 40202615141
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:1ed47
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88801ed47000 pfn:0x1ed47
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 0000000000000000
raw: ffff88801ed47000 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 5321, tgid 5320 (syz.0.0), ts 83184382173, free_ts 40202620301
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:1adcd
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88801adcd7c0 pfn:0x1adcd
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 0000000000000000
raw: ffff88801adcd7c0 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 5321, tgid 5320 (syz.0.0), ts 83184376663, free_ts 40202625764
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:1205d
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x1205d
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 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 5321, tgid 5320 (syz.0.0), ts 83184370071, free_ts 40202631156
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:1af4d
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x1af4d
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 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 5321, tgid 5320 (syz.0.0), ts 83184362803, free_ts 40202634210
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:126b9
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880126b9dc0 pfn:0x126b9
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 0000000000000000
raw: ffff8880126b9dc0 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 5321, tgid 5320 (syz.0.0), ts 83184351997, free_ts 40202639449
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:1ad71
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x1ad71
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 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 5321, tgid 5320 (syz.0.0), ts 83184344880, free_ts 40202644153
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:12177
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x12177
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 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 5321, tgid 5320 (syz.0.0), ts 83184337535, free_ts 40202650433
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:11f72
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888011f72dc0 pfn:0x11f72
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 0000000000000000
raw: ffff888011f72dc0 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 5321, tgid 5320 (syz.0.0), ts 83184330371, free_ts 40222642883
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:12ef6
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x12ef6
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801e490000 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 5321, tgid 5320 (syz.0.0), ts 83184323126, free_ts 40222656083
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4740
 __alloc_pages_noprof mm/page_alloc.c:4774 [inline]
 alloc_pages_bulk_noprof+0x847/0xae0 mm/page_alloc.c:4694
 alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
 __page_pool_alloc_pages_slow+0x11f/0x690 net/core/page_pool.c:542
 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+0xcc8/0x1720 net/core/skbuff.c:893
 netif_skb_check_for_xdp net/core/dev.c:5259 [inline]
 netif_receive_generic_xdp net/core/dev.c:5298 [inline]
 do_xdp_generic+0x505/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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
page last free pid 17 tgid 17 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 pagetable_free include/linux/mm.h:2923 [inline]
 pagetable_dtor_free include/linux/mm.h:3021 [inline]
 __tlb_remove_table+0x33c/0x420 include/asm-generic/tlb.h:216
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x76/0xf0 mm/mmu_gather.c:282
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2802
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Tainted: G    B              6.14.0-syzkaller-00624-g2f2d52945852 #0
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+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_frozen_pages+0x1082/0x10e0 mm/page_alloc.c:2660
 bpf_xdp_shrink_data net/core/filter.c:4155 [inline]
 bpf_xdp_frags_shrink_tail+0x3b3/0x780 net/core/filter.c:4175
 ____bpf_xdp_adjust_tail net/core/filter.c:4200 [inline]
 bpf_xdp_adjust_tail+0x1c6/0x210 net/core/filter.c:4193
 bpf_prog_f476d5219b92964a+0x1e/0x20
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run_xdp include/net/xdp.h:654 [inline]
 bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:5191
 netif_receive_generic_xdp net/core/dev.c:5304 [inline]
 do_xdp_generic+0x757/0xd30 net/core/dev.c:5366
 tun_get_user+0x2a4b/0x4860 drivers/net/tun.c:1929
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:684
 ksys_write+0x18f/0x2b0 fs/read_write.c:736
 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: 0033:0x7f1c1878bc1f
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:00007f1c195d6000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1c189a5fa0 RCX: 00007f1c1878bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007f1c1880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c189a5fa0 R15: 00007ffe708ebc28
 </TASK>