BUG: Bad page state in process syz.0.0 pfn:0e5b9 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x700000008 pfn:0xe5b9 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: 0000000700000008 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 5120, tgid 5119 (syz.0.0), ts 99759500735, free_ts 99726608451 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Not tainted 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:0e5b8 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88800e5be000 pfn:0xe5b8 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: ffff88800e5be000 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 5120, tgid 5119 (syz.0.0), ts 99759482931, free_ts 99726608451 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:122bf page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122bf flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759476329, free_ts 99221496412 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 5114 tgid 5114 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883 sock_alloc_send_skb include/net/sock.h:1782 [inline] mld_newpack+0x1c3/0xa90 net/ipv6/mcast.c:1747 add_grhead net/ipv6/mcast.c:1850 [inline] add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1988 mld_send_cr net/ipv6/mcast.c:2114 [inline] mld_ifc_work+0x691/0xd90 net/ipv6/mcast.c:2651 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:122be page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122be flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759469199, free_ts 99221496412 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 5114 tgid 5114 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883 sock_alloc_send_skb include/net/sock.h:1782 [inline] mld_newpack+0x1c3/0xa90 net/ipv6/mcast.c:1747 add_grhead net/ipv6/mcast.c:1850 [inline] add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1988 mld_send_cr net/ipv6/mcast.c:2114 [inline] mld_ifc_work+0x691/0xd90 net/ipv6/mcast.c:2651 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:122bd page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122bd flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759460630, free_ts 99221496412 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 5114 tgid 5114 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883 sock_alloc_send_skb include/net/sock.h:1782 [inline] mld_newpack+0x1c3/0xa90 net/ipv6/mcast.c:1747 add_grhead net/ipv6/mcast.c:1850 [inline] add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1988 mld_send_cr net/ipv6/mcast.c:2114 [inline] mld_ifc_work+0x691/0xd90 net/ipv6/mcast.c:2651 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:122bc page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122bc flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759452959, free_ts 99221496412 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 5114 tgid 5114 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883 sock_alloc_send_skb include/net/sock.h:1782 [inline] mld_newpack+0x1c3/0xa90 net/ipv6/mcast.c:1747 add_grhead net/ipv6/mcast.c:1850 [inline] add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1988 mld_send_cr net/ipv6/mcast.c:2114 [inline] mld_ifc_work+0x691/0xd90 net/ipv6/mcast.c:2651 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:122bb page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122bb flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759444732, free_ts 99221496412 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 5114 tgid 5114 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883 sock_alloc_send_skb include/net/sock.h:1782 [inline] mld_newpack+0x1c3/0xa90 net/ipv6/mcast.c:1747 add_grhead net/ipv6/mcast.c:1850 [inline] add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1988 mld_send_cr net/ipv6/mcast.c:2114 [inline] mld_ifc_work+0x691/0xd90 net/ipv6/mcast.c:2651 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:122ba page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122ba flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759436946, free_ts 99221496412 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 5114 tgid 5114 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883 sock_alloc_send_skb include/net/sock.h:1782 [inline] mld_newpack+0x1c3/0xa90 net/ipv6/mcast.c:1747 add_grhead net/ipv6/mcast.c:1850 [inline] add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1988 mld_send_cr net/ipv6/mcast.c:2114 [inline] mld_ifc_work+0x691/0xd90 net/ipv6/mcast.c:2651 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:122b9 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8 pfn:0x122b9 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: 0000000000000008 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5120, tgid 5119 (syz.0.0), ts 99759430465, free_ts 99221496412 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 5114 tgid 5114 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883 sock_alloc_send_skb include/net/sock.h:1782 [inline] mld_newpack+0x1c3/0xa90 net/ipv6/mcast.c:1747 add_grhead net/ipv6/mcast.c:1850 [inline] add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1988 mld_send_cr net/ipv6/mcast.c:2114 [inline] mld_ifc_work+0x691/0xd90 net/ipv6/mcast.c:2651 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:122b8 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880122be000 pfn:0x122b8 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: ffff8880122be000 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 5120, tgid 5119 (syz.0.0), ts 99759422914, free_ts 99221496412 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 5114 tgid 5114 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883 sock_alloc_send_skb include/net/sock.h:1782 [inline] mld_newpack+0x1c3/0xa90 net/ipv6/mcast.c:1747 add_grhead net/ipv6/mcast.c:1850 [inline] add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1988 mld_send_cr net/ipv6/mcast.c:2114 [inline] mld_ifc_work+0x691/0xd90 net/ipv6/mcast.c:2651 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:1270f page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1270f flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759415094, free_ts 95679114881 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 4600 tgid 4600 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4141 getname_flags+0xb7/0x540 fs/namei.c:139 do_readlinkat+0xd8/0x3a0 fs/stat.c:536 __do_sys_readlink fs/stat.c:574 [inline] __se_sys_readlink fs/stat.c:571 [inline] __x64_sys_readlink+0x7f/0x90 fs/stat.c:571 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:1270e page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1270e flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759407308, free_ts 95679114881 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 4600 tgid 4600 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4141 getname_flags+0xb7/0x540 fs/namei.c:139 do_readlinkat+0xd8/0x3a0 fs/stat.c:536 __do_sys_readlink fs/stat.c:574 [inline] __se_sys_readlink fs/stat.c:571 [inline] __x64_sys_readlink+0x7f/0x90 fs/stat.c:571 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:1270d page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1270d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759399431, free_ts 95679114881 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 4600 tgid 4600 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4141 getname_flags+0xb7/0x540 fs/namei.c:139 do_readlinkat+0xd8/0x3a0 fs/stat.c:536 __do_sys_readlink fs/stat.c:574 [inline] __se_sys_readlink fs/stat.c:571 [inline] __x64_sys_readlink+0x7f/0x90 fs/stat.c:571 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:1270c page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1270c flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 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 5120, tgid 5119 (syz.0.0), ts 99759383431, free_ts 95679114881 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 4600 tgid 4600 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4141 getname_flags+0xb7/0x540 fs/namei.c:139 do_readlinkat+0xd8/0x3a0 fs/stat.c:536 __do_sys_readlink fs/stat.c:574 [inline] __se_sys_readlink fs/stat.c:571 [inline] __x64_sys_readlink+0x7f/0x90 fs/stat.c:571 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:1fce1 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2 pfn:0x1fce1 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: 0000000000000002 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 5120, tgid 5119 (syz.0.0), ts 99759375603, free_ts 99726949936 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:1fce0 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88801fce0000 pfn:0x1fce0 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: ffff88801fce0000 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 5120, tgid 5119 (syz.0.0), ts 99759367479, free_ts 99726949936 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:0e571 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2 pfn:0xe571 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: 0000000000000002 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 5120, tgid 5119 (syz.0.0), ts 99759359455, free_ts 99726964706 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:0e570 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88800e570c00 pfn:0xe570 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: ffff88800e570c00 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 5120, tgid 5119 (syz.0.0), ts 99759351097, free_ts 99726964706 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:0e543 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2 pfn:0xe543 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: 0000000000000002 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 5120, tgid 5119 (syz.0.0), ts 99759342661, free_ts 99726973506 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:0e542 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88800e543800 pfn:0xe542 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: ffff88800e543800 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 5120, tgid 5119 (syz.0.0), ts 99759330400, free_ts 99726973506 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:0e583 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x2 pfn:0xe583 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: 0000000000000002 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 5120, tgid 5119 (syz.0.0), ts 99759321843, free_ts 99726984269 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18 BUG: Bad page state in process syz.0.0 pfn:0e582 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88800e583b00 pfn:0xe582 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88804b622000 0000000000000000 raw: ffff88800e583b00 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 5120, tgid 5119 (syz.0.0), ts 99759300140, free_ts 99726984269 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733 alloc_pages_bulk_noprof+0x729/0xd40 mm/page_alloc.c:4681 alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline] __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538 page_pool_alloc_netmem net/core/page_pool.c:590 [inline] page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:305 [inline] bpf_test_run_xdp_live+0x950/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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 1339 tgid 1339 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] nsim_fib4_rt_create drivers/net/netdevsim/fib.c:280 [inline] nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:426 [inline] nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:884 [inline] nsim_fib_event_work+0xe1a/0x4130 drivers/net/netdevsim/fib.c:1491 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CPU: 0 UID: 0 PID: 5120 Comm: syz.0.0 Tainted: G B 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 bad_page+0x166/0x1b0 mm/page_alloc.c:501 free_page_is_bad mm/page_alloc.c:918 [inline] free_pages_prepare mm/page_alloc.c:1100 [inline] free_unref_page+0xed0/0xf20 mm/page_alloc.c:2638 skb_free_frag include/linux/skbuff.h:3399 [inline] skb_free_head net/core/skbuff.c:1096 [inline] skb_release_data+0x6dc/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1262 [inline] __netif_receive_skb_core+0x3edd/0x4570 net/core/dev.c:5640 __netif_receive_skb_list_core+0x2b1/0x980 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5808 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5899 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5951 xdp_recv_frames net/bpf/test_run.c:279 [inline] xdp_test_run_batch net/bpf/test_run.c:360 [inline] bpf_test_run_xdp_live+0x1b0d/0x2160 net/bpf/test_run.c:389 bpf_prog_test_run_xdp+0x805/0x11e0 net/bpf/test_run.c:1317 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4247 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5739 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: 0033:0x7f287c57dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f287d412038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f287c735f80 RCX: 00007f287c57dff9 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007f287c5f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f287c735f80 R15: 00007ffdb10c6d18