==================================================================
BUG: KASAN: slab-use-after-free in advance_sched+0xc20/0xca0 net/sched/sch_taprio.c:942
Read of size 8 at addr ffff88802c04e910 by task dhcpcd-run-hook/13540

CPU: 1 PID: 13540 Comm: dhcpcd-run-hook Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 advance_sched+0xc20/0xca0 net/sched/sch_taprio.c:942
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x595/0xd00 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_next_frame+0x86/0x2a00 arch/x86/kernel/unwind_orc.c:471
Code: 44 24 58 42 80 3c 28 00 74 08 48 89 df e8 92 b4 b7 00 48 8b 45 38 48 89 84 24 90 00 00 00 48 89 e8 48 c1 e8 03 48 89 44 24 08 <42> 0f b6 04 28 84 c0 0f 85 6a 20 00 00 44 8b 75 00 31 ff 44 89 f6
RSP: 0018:ffffc9000e0a7808 EFLAGS: 00000a02
RAX: 1ffff92001c14f1c RBX: ffffc9000e0a7918 RCX: ffff8880219e3c00
RDX: 0000000000000000 RSI: ffffffff8b73d14b RDI: ffffc9000e0a78e0
RBP: ffffc9000e0a78e0 R08: 0000000000000008 R09: ffffc9000e0a79d0
R10: 0000000000000003 R11: ffffffff8180e0a0 R12: ffff8880219e3c00
R13: dffffc0000000000 R14: ffffc9000e0a79c0 R15: ffffffff8b73d14b
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 kmalloc_trace+0x1db/0x360 mm/slub.c:3997
 kmalloc include/linux/slab.h:628 [inline]
 kzalloc include/linux/slab.h:749 [inline]
 alloc_pipe_info+0xeb/0x4d0 fs/pipe.c:798
 get_pipe_inode fs/pipe.c:890 [inline]
 create_pipe_files+0x86/0x6a0 fs/pipe.c:922
 __do_pipe_flags+0x48/0x2d0 fs/pipe.c:971
 do_pipe2+0xd4/0x310 fs/pipe.c:1022
 __do_sys_pipe2 fs/pipe.c:1040 [inline]
 __se_sys_pipe2 fs/pipe.c:1038 [inline]
 __x64_sys_pipe2+0x5a/0x70 fs/pipe.c:1038
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fecd56a419a
Code: b8 24 01 00 00 0f 05 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d 81 9c 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 31 f6 b8 25 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 5f 9c 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffff1671b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000125
RAX: ffffffffffffffda RBX: 0000000000000084 RCX: 00007fecd56a419a
RDX: 0000561c0cb9ddb8 RSI: 0000000000000000 RDI: 00007ffff1671c00
RBP: 0000561c0cb9bab8 R08: 0000561c0cb9ddb8 R09: 00007fecd577eb20
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000084
R13: 0000000000000000 R14: 0000561c0cb9c0e0 R15: 0000000000000024
 </TASK>

Allocated by task 13548:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 kmalloc_trace+0x1db/0x360 mm/slub.c:3997
 kmalloc include/linux/slab.h:628 [inline]
 kzalloc include/linux/slab.h:749 [inline]
 taprio_change+0x1030/0x42d0 net/sched/sch_taprio.c:1861
 qdisc_change net/sched/sch_api.c:1416 [inline]
 tc_modify_qdisc+0x190d/0x1e40 net/sched/sch_api.c:1746
 rtnetlink_rcv_msg+0x89b/0x10d0 net/core/rtnetlink.c:6595
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2559
 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
 netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1361
 netlink_sendmsg+0x8e1/0xcb0 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmmsg+0x3b2/0x740 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2753 [inline]
 __se_sys_sendmmsg net/socket.c:2750 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2750
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

Freed by task 23:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2106 [inline]
 slab_free mm/slub.c:4280 [inline]
 kfree+0x14a/0x380 mm/slub.c:4390
 rcu_do_batch kernel/rcu/tree.c:2196 [inline]
 rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2471
 __do_softirq+0x2bc/0x943 kernel/softirq.c:554

Last potentially related work creation:
 kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47
 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541
 __call_rcu_common kernel/rcu/tree.c:2734 [inline]
 call_rcu+0x167/0xa70 kernel/rcu/tree.c:2838
 taprio_change+0x32d9/0x42d0 net/sched/sch_taprio.c:1971
 qdisc_change net/sched/sch_api.c:1416 [inline]
 tc_modify_qdisc+0x190d/0x1e40 net/sched/sch_api.c:1746
 rtnetlink_rcv_msg+0x89b/0x10d0 net/core/rtnetlink.c:6595
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2559
 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
 netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1361
 netlink_sendmsg+0x8e1/0xcb0 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmmsg+0x3b2/0x740 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2753 [inline]
 __se_sys_sendmmsg net/socket.c:2750 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2750
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

The buggy address belongs to the object at ffff88802c04e800
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 272 bytes inside of
 freed 512-byte region [ffff88802c04e800, ffff88802c04ea00)

The buggy address belongs to the physical page:
page:ffffea0000b01300 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2c04c
head:ffffea0000b01300 order:2 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888014c41c80 0000000000000000 dead000000000001
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5091, tgid 5091 (syz-executor.3), ts 68584918400, free_ts 68451502231
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1533
 prep_new_page mm/page_alloc.c:1540 [inline]
 get_page_from_freelist+0x33ea/0x3580 mm/page_alloc.c:3311
 __alloc_pages+0x256/0x680 mm/page_alloc.c:4569
 __alloc_pages_node include/linux/gfp.h:238 [inline]
 alloc_pages_node include/linux/gfp.h:261 [inline]
 alloc_slab_page+0x5f/0x160 mm/slub.c:2175
 allocate_slab mm/slub.c:2338 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2391
 ___slab_alloc+0xc73/0x1260 mm/slub.c:3525
 __slab_alloc mm/slub.c:3610 [inline]
 __slab_alloc_node mm/slub.c:3663 [inline]
 slab_alloc_node mm/slub.c:3835 [inline]
 __do_kmalloc_node mm/slub.c:3965 [inline]
 __kmalloc+0x2e5/0x4a0 mm/slub.c:3979
 kmalloc include/linux/slab.h:632 [inline]
 kzalloc include/linux/slab.h:749 [inline]
 fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155
 ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3759
 addrconf_f6i_alloc+0x3c2/0x7f0 net/ipv6/route.c:4583
 ipv6_add_addr+0x5b6/0x1090 net/ipv6/addrconf.c:1119
 inet6_addr_add+0x563/0xb00 net/ipv6/addrconf.c:3057
 inet6_rtm_newaddr+0x8a3/0xc80 net/ipv6/addrconf.c:5045
 rtnetlink_rcv_msg+0x89b/0x10d0 net/core/rtnetlink.c:6595
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2559
 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
 netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1361
page last free pid 5091 tgid 5091 stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1140 [inline]
 free_unref_page_prepare+0x968/0xa90 mm/page_alloc.c:2346
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2486
 discard_slab mm/slub.c:2437 [inline]
 __put_partials+0xeb/0x130 mm/slub.c:2906
 put_cpu_partial+0x17c/0x250 mm/slub.c:2981
 __slab_free+0x2ea/0x3d0 mm/slub.c:4151
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x5e/0xc0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3798 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 kmalloc_trace+0x16f/0x360 mm/slub.c:3992
 kmalloc include/linux/slab.h:628 [inline]
 netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:643 [inline]
 netdevice_event+0x37d/0x950 drivers/infiniband/core/roce_gid_mgmt.c:802
 notifier_call_chain+0x18f/0x3b0 kernel/notifier.c:93
 call_netdevice_notifiers_extack net/core/dev.c:1988 [inline]
 call_netdevice_notifiers net/core/dev.c:2002 [inline]
 dev_set_mac_address+0x3d9/0x510 net/core/dev.c:8946
 bond_set_mac_address+0x28e/0x7f0 drivers/net/bonding/bond_main.c:4767
 dev_set_mac_address+0x327/0x510 net/core/dev.c:8941
 dev_set_mac_address_user+0x31/0x50 net/core/dev.c:8960
 do_setlink+0x8b3/0x41f0 net/core/rtnetlink.c:2839

Memory state around the buggy address:
 ffff88802c04e800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802c04e880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802c04e900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff88802c04e980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802c04ea00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
----------------
Code disassembly (best guess):
   0:	44 24 58             	rex.R and $0x58,%al
   3:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
   8:	74 08                	je     0x12
   a:	48 89 df             	mov    %rbx,%rdi
   d:	e8 92 b4 b7 00       	call   0xb7b4a4
  12:	48 8b 45 38          	mov    0x38(%rbp),%rax
  16:	48 89 84 24 90 00 00 	mov    %rax,0x90(%rsp)
  1d:	00
  1e:	48 89 e8             	mov    %rbp,%rax
  21:	48 c1 e8 03          	shr    $0x3,%rax
  25:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
* 2a:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 6a 20 00 00    	jne    0x20a1
  37:	44 8b 75 00          	mov    0x0(%rbp),%r14d
  3b:	31 ff                	xor    %edi,%edi
  3d:	44 89 f6             	mov    %r14d,%esi