BUG: Bad page state in process syz.5.171 pfn:5d78d
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d78d
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 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 6550, tgid 6546 (syz.5.171), ts 136030706269, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Not tainted 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d78c
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d78c
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030687549, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d78b
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d78b
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030674210, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d78a
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d78a
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030661123, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d789
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d789
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030642699, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d788
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d788
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030629460, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d787
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d787
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030598347, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d786
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d786
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030585525, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d785
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d785
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030572970, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d784
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d784
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030559711, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d783
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d783
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030546785, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8
BUG: Bad page state in process syz.5.171 pfn:5d782
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d782
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022aab000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 6550, tgid 6546 (syz.5.171), ts 136030533986, free_ts 122057432902
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+0x3651/0x37a0 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 53 tgid 53 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbbc/0xe40 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1492 [inline]
free_large_kmalloc+0x13e/0x1e0 mm/slub.c:4758
kfree+0x212/0x430 mm/slub.c:4826
wg_destruct+0x254/0x2e0 drivers/net/wireguard/device.c:264
netdev_run_todo+0xd46/0xf30 net/core/dev.c:11244
default_device_exit_batch+0x804/0x880 net/core/dev.c:12435
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x8ad/0xd60 net/core/net_namespace.c:652
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
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: 1 UID: 0 PID: 6550 Comm: syz.5.171 Tainted: G B 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_frozen_pages+0x1079/0x10e0 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:692 [inline]
bpf_prog_run_xdp include/net/xdp.h:654 [inline]
bpf_prog_run_generic_xdp+0x12af/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: 0033:0x7fcffb98bc1f
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:00007fcffc80c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcffbba6080 RCX: 00007fcffb98bc1f
RDX: 000000000000fdef RSI: 0000200000000a80 RDI: 00000000000000c8
RBP: 00007fcffba0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fdef R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcffbba6080 R15: 00007ffe779aeeb8