BUG: Bad page state in process syz.4.14239 pfn:2ba5b
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x2ba5b
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 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 22479, tgid 22476 (syz.4.14239), ts 2113493674810, free_ts 2112763442688
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 16139 tgid 16139 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2645 [inline]
rcu_core+0x78b/0x10a0 kernel/rcu/tree.c:2897
handle_softirqs+0x225/0x840 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:2ba59
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802ba59640 pfn:0x2ba59
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 0000000000000000
raw: ffff88802ba59640 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 22479, tgid 22476 (syz.4.14239), ts 2113493653580, free_ts 2112763494989
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 16139 tgid 16139 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2645 [inline]
rcu_core+0x78b/0x10a0 kernel/rcu/tree.c:2897
handle_softirqs+0x225/0x840 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:71680
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888071680d80 pfn:0x71680
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 0000000000000000
raw: ffff888071680d80 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 9952, tgid 9946 (syz.3.10657), ts 1638068418040, free_ts 1638066826865
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_alloc_va include/net/page_pool/helpers.h:198 [inline]
page_pool_dev_alloc_va include/net/page_pool/helpers.h:221 [inline]
skb_pp_cow_data+0x260/0x19a0 net/core/skbuff.c:951
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 9936 tgid 9933 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__folio_put+0x4b3/0x590 mm/swap.c:112
page_pool_empty_alloc_cache_once net/core/page_pool.c:1148 [inline]
page_pool_scrub net/core/page_pool.c:1157 [inline]
page_pool_release+0x1aa/0xd70 net/core/page_pool.c:1189
page_pool_destroy+0x1d5/0x3f0 net/core/page_pool.c:1298
xdp_test_run_teardown net/bpf/test_run.c:207 [inline]
bpf_test_run_xdp_live+0x1b75/0x1c20 net/bpf/test_run.c:384
bpf_prog_test_run_xdp+0x7d8/0x11d0 net/bpf/test_run.c:1467
bpf_prog_test_run+0x2c5/0x340 kernel/bpf/syscall.c:4859
__sys_bpf+0xa22/0xd90 kernel/bpf/syscall.c:6436
__do_sys_bpf kernel/bpf/syscall.c:6537 [inline]
__se_sys_bpf kernel/bpf/syscall.c:6534 [inline]
__x64_sys_bpf+0xba/0xd0 kernel/bpf/syscall.c:6534
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:27d1f
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x27d1f
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 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 14953, tgid 14952 (syz.1.12156), ts 1809936393365, free_ts 1809781965429
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
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:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2645 [inline]
rcu_core+0x78b/0x10a0 kernel/rcu/tree.c:2897
handle_softirqs+0x225/0x840 kernel/softirq.c:622
run_ksoftirqd+0x36/0x60 kernel/softirq.c:1076
smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:7e4a1
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807e4a1630 pfn:0x7e4a1
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 0000000000000000
raw: ffff88807e4a1630 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 14953, tgid 14952 (syz.1.12156), ts 1809936411858, free_ts 1809781929247
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
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:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2645 [inline]
rcu_core+0x78b/0x10a0 kernel/rcu/tree.c:2897
handle_softirqs+0x225/0x840 kernel/softirq.c:622
run_ksoftirqd+0x36/0x60 kernel/softirq.c:1076
smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:5bda8
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88805bda84b0 pfn:0x5bda8
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 0000000000000000
raw: ffff88805bda84b0 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 14953, tgid 14952 (syz.1.12156), ts 1809936429955, free_ts 1809528658664
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 14941 tgid 14941 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__slab_free+0x274/0x2c0 mm/slub.c:5767
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4612 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
kmem_cache_alloc_noprof+0x2a0/0x5f0 mm/slub.c:4959
vm_area_alloc+0x24/0x140 mm/vma_init.c:32
__mmap_new_vma mm/vma.c:2547 [inline]
__mmap_region mm/vma.c:2774 [inline]
mmap_region+0x1221/0x2310 mm/vma.c:2860
do_mmap+0xc3b/0x10c0 mm/mmap.c:560
vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581
ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:606
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:11c17
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888011c17f00 pfn:0x11c17
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 0000000000000000
raw: ffff888011c17f00 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 14953, tgid 14952 (syz.1.12156), ts 1809936483269, free_ts 1809528587792
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 14941 tgid 14941 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__slab_free+0x274/0x2c0 mm/slub.c:5767
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4612 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
kmem_cache_alloc_noprof+0x2a0/0x5f0 mm/slub.c:4959
vm_area_alloc+0x24/0x140 mm/vma_init.c:32
__mmap_new_vma mm/vma.c:2547 [inline]
__mmap_region mm/vma.c:2774 [inline]
mmap_region+0x1221/0x2310 mm/vma.c:2860
do_mmap+0xc3b/0x10c0 mm/mmap.c:560
vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581
ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:606
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:11c16
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888011c16000 pfn:0x11c16
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 0000000000000000
raw: ffff888011c16000 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 14953, tgid 14952 (syz.1.12156), ts 1809936500382, free_ts 1809528532874
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 14941 tgid 14941 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__slab_free+0x274/0x2c0 mm/slub.c:5767
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4612 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
kmem_cache_alloc_noprof+0x2a0/0x5f0 mm/slub.c:4959
vm_area_alloc+0x24/0x140 mm/vma_init.c:32
__mmap_new_vma mm/vma.c:2547 [inline]
__mmap_region mm/vma.c:2774 [inline]
mmap_region+0x1221/0x2310 mm/vma.c:2860
do_mmap+0xc3b/0x10c0 mm/mmap.c:560
vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581
ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:606
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:74f17
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888074f17000 pfn:0x74f17
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 0000000000000000
raw: ffff888074f17000 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 14953, tgid 14952 (syz.1.12156), ts 1809936515586, free_ts 1809528453859
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 14941 tgid 14941 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__slab_free+0x274/0x2c0 mm/slub.c:5767
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4612 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
kmem_cache_alloc_noprof+0x2a0/0x5f0 mm/slub.c:4959
vm_area_alloc+0x24/0x140 mm/vma_init.c:32
__mmap_new_vma mm/vma.c:2547 [inline]
__mmap_region mm/vma.c:2774 [inline]
mmap_region+0x1221/0x2310 mm/vma.c:2860
do_mmap+0xc3b/0x10c0 mm/mmap.c:560
vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581
ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:606
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:74f16
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888074f16f00 pfn:0x74f16
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 0000000000000000
raw: ffff888074f16f00 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 14953, tgid 14952 (syz.1.12156), ts 1809936529540, free_ts 1809528358619
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 14941 tgid 14941 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__slab_free+0x274/0x2c0 mm/slub.c:5767
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4612 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
kmem_cache_alloc_noprof+0x2a0/0x5f0 mm/slub.c:4959
vm_area_alloc+0x24/0x140 mm/vma_init.c:32
__mmap_new_vma mm/vma.c:2547 [inline]
__mmap_region mm/vma.c:2774 [inline]
mmap_region+0x1221/0x2310 mm/vma.c:2860
do_mmap+0xc3b/0x10c0 mm/mmap.c:560
vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581
ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:606
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8
BUG: Bad page state in process syz.4.14239 pfn:51445
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888051445000 pfn:0x51445
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801afa9000 0000000000000000
raw: ffff888051445000 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 14953, tgid 14952 (syz.1.12156), ts 1809936544142, free_ts 1809528208420
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5338
alloc_pages_bulk_noprof+0x5f5/0x7b0 mm/page_alloc.c:5230
alloc_pages_bulk_node_noprof include/linux/gfp.h:261 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcd0/0x19a0 net/core/skbuff.c:984
netif_skb_check_for_xdp net/core/dev.c:5561 [inline]
netif_receive_generic_xdp net/core/dev.c:5602 [inline]
do_xdp_generic+0x770/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 14941 tgid 14941 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__slab_free+0x274/0x2c0 mm/slub.c:5767
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4612 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
kmem_cache_alloc_noprof+0x2a0/0x5f0 mm/slub.c:4959
vm_area_alloc+0x24/0x140 mm/vma_init.c:32
__mmap_new_vma mm/vma.c:2547 [inline]
__mmap_region mm/vma.c:2774 [inline]
mmap_region+0x1221/0x2310 mm/vma.c:2860
do_mmap+0xc3b/0x10c0 mm/mmap.c:560
vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581
ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:606
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 22479 Comm: syz.4.14239 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:643
free_page_is_bad mm/page_alloc.c:1078 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xcc2/0xd10 mm/page_alloc.c:2950
bpf_xdp_shrink_data net/core/filter.c:4289 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4313
____bpf_xdp_adjust_tail net/core/filter.c:4335 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4328
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:723 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x5e3/0x14b0 net/core/dev.c:5492
netif_receive_generic_xdp net/core/dev.c:5608 [inline]
do_xdp_generic+0xac2/0x12d0 net/core/dev.c:5670
tun_get_user+0x24f8/0x4370 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f108d35e68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f108e1dbfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f108e1dc6c0 RCX: 00007f108d35e68e
RDX: 0000000000011dc0 RSI: 0000200000001a40 RDI: 00000000000000c8
RBP: 00007f108d433e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f108d626128 R14: 00007f108d626090 R15: 00007fffc22ec7a8