==================================================================
BUG: KASAN: use-after-free in dump_schedule+0x6d2/0x750 net/sched/sch_taprio.c:1837
Read of size 8 at addr ffff88805fc7cbc0 by task syz-executor.5/32069

CPU: 1 PID: 32069 Comm: syz-executor.5 Not tainted 5.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x57/0x7d lib/dump_stack.c:105
 print_address_description.constprop.0.cold+0x6c/0x309 mm/kasan/report.c:256
 __kasan_report mm/kasan/report.c:442 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:459
 dump_schedule+0x6d2/0x750 net/sched/sch_taprio.c:1837
 taprio_dump+0x431/0xbd0 net/sched/sch_taprio.c:1906
 tc_fill_qdisc+0x575/0x1090 net/sched/sch_api.c:917
 qdisc_notify.isra.0+0x229/0x2a0 net/sched/sch_api.c:984
 tc_modify_qdisc+0xc89/0x16c0 net/sched/sch_api.c:1636
 rtnetlink_rcv_msg+0x31d/0x8d0 net/core/rtnetlink.c:5572
 netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2504
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x42e/0x700 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x704/0xbf0 net/netlink/af_netlink.c:1929
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xab/0xe0 net/socket.c:724
 ____sys_sendmsg+0x5bf/0x7a0 net/socket.c:2409
 ___sys_sendmsg+0xd3/0x150 net/socket.c:2463
 __sys_sendmsg+0xb2/0x140 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f13bea42188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffe38342daf R14: 00007f13bea42300 R15: 0000000000022000

Allocated by task 32029:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc mm/kasan/common.c:513 [inline]
 ____kasan_kmalloc mm/kasan/common.c:472 [inline]
 __kasan_kmalloc+0xa4/0xd0 mm/kasan/common.c:522
 kmalloc include/linux/slab.h:591 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 taprio_change+0x51b/0x3b70 net/sched/sch_taprio.c:1477
 qdisc_change net/sched/sch_api.c:1332 [inline]
 tc_modify_qdisc+0xada/0x16c0 net/sched/sch_api.c:1634
 rtnetlink_rcv_msg+0x31d/0x8d0 net/core/rtnetlink.c:5572
 netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2504
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x42e/0x700 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x704/0xbf0 net/netlink/af_netlink.c:1929
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xab/0xe0 net/socket.c:724
 ____sys_sendmsg+0x5bf/0x7a0 net/socket.c:2409
 ___sys_sendmsg+0xd3/0x150 net/socket.c:2463
 __sys_sendmsg+0xb2/0x140 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Freed by task 19:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_set_track+0x1c/0x30 mm/kasan/common.c:46
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:360
 ____kasan_slab_free mm/kasan/common.c:366 [inline]
 ____kasan_slab_free mm/kasan/common.c:328 [inline]
 __kasan_slab_free+0xff/0x130 mm/kasan/common.c:374
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1628 [inline]
 slab_free_freelist_hook+0xe3/0x250 mm/slub.c:1653
 slab_free mm/slub.c:3213 [inline]
 kfree+0xe4/0x540 mm/slub.c:4267
 rcu_do_batch kernel/rcu/tree.c:2508 [inline]
 rcu_core+0x7ab/0x1470 kernel/rcu/tree.c:2743
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558

Last potentially related work creation:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_record_aux_stack+0xe9/0x110 mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:2987 [inline]
 call_rcu+0xb1/0x750 kernel/rcu/tree.c:3067
 taprio_change+0x2654/0x3b70 net/sched/sch_taprio.c:1597
 qdisc_change net/sched/sch_api.c:1332 [inline]
 tc_modify_qdisc+0xada/0x16c0 net/sched/sch_api.c:1634
 rtnetlink_rcv_msg+0x31d/0x8d0 net/core/rtnetlink.c:5572
 netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2504
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x42e/0x700 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x704/0xbf0 net/netlink/af_netlink.c:1929
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xab/0xe0 net/socket.c:724
 ____sys_sendmsg+0x5bf/0x7a0 net/socket.c:2409
 ___sys_sendmsg+0xd3/0x150 net/socket.c:2463
 __sys_sendmsg+0xb2/0x140 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Second to last potentially related work creation:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_record_aux_stack+0xe9/0x110 mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:2987 [inline]
 call_rcu+0xb1/0x750 kernel/rcu/tree.c:3067
 taprio_change+0x2654/0x3b70 net/sched/sch_taprio.c:1597
 qdisc_change net/sched/sch_api.c:1332 [inline]
 tc_modify_qdisc+0xada/0x16c0 net/sched/sch_api.c:1634
 rtnetlink_rcv_msg+0x31d/0x8d0 net/core/rtnetlink.c:5572
 netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2504
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x42e/0x700 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x704/0xbf0 net/netlink/af_netlink.c:1929
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xab/0xe0 net/socket.c:724
 ____sys_sendmsg+0x5bf/0x7a0 net/socket.c:2409
 ___sys_sendmsg+0xd3/0x150 net/socket.c:2463
 __sys_sendmsg+0xb2/0x140 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The buggy address belongs to the object at ffff88805fc7cb80
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 64 bytes inside of
 96-byte region [ffff88805fc7cb80, ffff88805fc7cbe0)
The buggy address belongs to the page:
page:ffffea00017f1f00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88805fc7c480 pfn:0x5fc7c
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffffea0001d29900 0000000200000002 ffff88800fc41780
raw: ffff88805fc7c480 000000008020001f 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY), pid 8935, ts 72157851308, free_ts 9705968254
 prep_new_page mm/page_alloc.c:2436 [inline]
 get_page_from_freelist+0xa6f/0x2f50 mm/page_alloc.c:4168
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5390
 alloc_slab_page mm/slub.c:1691 [inline]
 allocate_slab+0x32e/0x4b0 mm/slub.c:1831
 new_slab mm/slub.c:1894 [inline]
 new_slab_objects mm/slub.c:2640 [inline]
 ___slab_alloc+0x473/0x7b0 mm/slub.c:2803
 __slab_alloc.constprop.0+0xa7/0xf0 mm/slub.c:2843
 slab_alloc_node mm/slub.c:2925 [inline]
 slab_alloc mm/slub.c:2967 [inline]
 __kmalloc+0x312/0x330 mm/slub.c:4111
 kmalloc include/linux/slab.h:596 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 tomoyo_commit_ok+0x18/0x60 security/tomoyo/memory.c:76
 tomoyo_update_domain+0x50c/0x7b0 security/tomoyo/domain.c:139
 tomoyo_update_path_number_acl security/tomoyo/file.c:691 [inline]
 tomoyo_write_file+0x513/0x690 security/tomoyo/file.c:1034
 tomoyo_write_domain2+0xe8/0x180 security/tomoyo/common.c:1152
 tomoyo_add_entry security/tomoyo/common.c:2042 [inline]
 tomoyo_supervisor+0x98b/0xc40 security/tomoyo/common.c:2103
 tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline]
 tomoyo_path_number_perm+0x38a/0x4d0 security/tomoyo/file.c:734
 tomoyo_path_mkdir+0x81/0xd0 security/tomoyo/tomoyo.c:166
 security_path_mkdir+0xc0/0x130 security/security.c:1140
 do_mkdirat+0x106/0x280 fs/namei.c:3907
 __do_sys_mkdir fs/namei.c:3931 [inline]
 __se_sys_mkdir fs/namei.c:3929 [inline]
 __x64_sys_mkdir+0xd0/0x120 fs/namei.c:3929
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1346 [inline]
 free_pcp_prepare+0x2c5/0x780 mm/page_alloc.c:1397
 free_unref_page_prepare mm/page_alloc.c:3332 [inline]
 free_unref_page+0x19/0x690 mm/page_alloc.c:3411
 free_contig_range+0xa8/0xf0 mm/page_alloc.c:9269
 destroy_args+0x7e/0x503 mm/debug_vm_pgtable.c:1016
 debug_vm_pgtable+0x1eb8/0x1f3c mm/debug_vm_pgtable.c:1329
 do_one_initcall+0xbe/0x440 init/main.c:1287
 do_initcall_level init/main.c:1360 [inline]
 do_initcalls init/main.c:1376 [inline]
 do_basic_setup init/main.c:1396 [inline]
 kernel_init_freeable+0x5b2/0x60c init/main.c:1598
 kernel_init+0x14/0x120 init/main.c:1490
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Memory state around the buggy address:
 ffff88805fc7ca80: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
 ffff88805fc7cb00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff88805fc7cb80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                                           ^
 ffff88805fc7cc00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff88805fc7cc80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
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