==================================================================
BUG: KASAN: slab-use-after-free in sk_fullsock include/net/sock.h:2823 [inline]
BUG: KASAN: slab-use-after-free in ip_skb_dst_mtu+0x830/0x9b0 include/net/ip.h:499
Read of size 1 at addr ffff88802f1dc012 by task swapper/1/0

CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc5-syzkaller-00129-g2a770cdc4382 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x167/0x540 mm/kasan/report.c:488
 kasan_report+0x142/0x180 mm/kasan/report.c:601
 sk_fullsock include/net/sock.h:2823 [inline]
 ip_skb_dst_mtu+0x830/0x9b0 include/net/ip.h:499
 __ip_finish_output+0x12b/0x400 net/ipv4/ip_output.c:306
 ipvlan_process_v4_outbound+0x3ef/0x700 drivers/net/ipvlan/ipvlan_core.c:442
 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:540 [inline]
 ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]
 ipvlan_queue_xmit+0xaa2/0x11f0 drivers/net/ipvlan/ipvlan_core.c:668
 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:222
 __netdev_start_xmit include/linux/netdevice.h:4989 [inline]
 netdev_start_xmit include/linux/netdevice.h:5003 [inline]
 xmit_one net/core/dev.c:3547 [inline]
 dev_hard_start_xmit+0x242/0x770 net/core/dev.c:3563
 sch_direct_xmit+0x2b6/0x5f0 net/sched/sch_generic.c:342
 qdisc_restart net/sched/sch_generic.c:407 [inline]
 __qdisc_run+0xbed/0x2150 net/sched/sch_generic.c:415
 qdisc_run+0xda/0x270 include/net/pkt_sched.h:125
 net_tx_action+0x877/0xa30 net/core/dev.c:5197
 __do_softirq+0x2bb/0x942 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu+0xf1/0x1c0 kernel/softirq.c:632
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x97/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:113
Code: 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 a8 b9 9c 74 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d d6 04 a1 00 f3 0f 1e fa fb f4 <fa> c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc90000187d08 EFLAGS: 00000246
RAX: ffff8880172cbb80 RBX: ffff888017ac1064 RCX: 000000000002e1a1
RDX: 0000000000000001 RSI: ffff888017ac1000 RDI: ffff888017ac1064
RBP: 0000000000038f98 R08: ffff8880b9536d8b R09: 1ffff110172a6db1
R10: dffffc0000000000 R11: ffffffff8b670120 R12: ffff88801bfd2800
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8e8984e0
 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
 cpuidle_enter_state+0x118/0x490 drivers/cpuidle/cpuidle.c:267
 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388
 call_cpuidle kernel/sched/idle.c:134 [inline]
 cpuidle_idle_call kernel/sched/idle.c:215 [inline]
 do_idle+0x374/0x5d0 kernel/sched/idle.c:312
 cpu_startup_entry+0x41/0x60 kernel/sched/idle.c:410
 start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:336
 secondary_startup_64_no_verify+0x171/0x17b
 </TASK>

Allocated by task 5133:
 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:372 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slub.c:3981 [inline]
 __kmalloc+0x22e/0x490 mm/slub.c:3994
 kmalloc include/linux/slab.h:594 [inline]
 sk_prot_alloc+0xe0/0x210 net/core/sock.c:2078
 sk_alloc+0x38/0x370 net/core/sock.c:2131
 packet_create+0x104/0x790 net/packet/af_packet.c:3352
 __sock_create+0x48f/0x920 net/socket.c:1571
 sock_create net/socket.c:1622 [inline]
 __sys_socket_create net/socket.c:1659 [inline]
 __sys_socket+0x14f/0x3c0 net/socket.c:1706
 __do_sys_socket net/socket.c:1720 [inline]
 __se_sys_socket net/socket.c:1718 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1718
 do_syscall_64+0xf9/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77

Freed by task 0:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x4e/0x60 mm/kasan/generic.c:640
 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:241
 __kasan_slab_free+0x34/0x70 mm/kasan/common.c:257
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2121 [inline]
 slab_free mm/slub.c:4299 [inline]
 kfree+0x14a/0x380 mm/slub.c:4409
 sk_prot_free net/core/sock.c:2114 [inline]
 __sk_destruct+0x47f/0x5f0 net/core/sock.c:2206
 skb_orphan include/linux/skbuff.h:3127 [inline]
 ip_defrag+0x208/0x25d0 net/ipv4/ip_fragment.c:490
 nf_ct_ipv4_gather_frags net/ipv4/netfilter/nf_defrag_ipv4.c:32 [inline]
 ipv4_conntrack_defrag+0x3de/0x5a0 net/ipv4/netfilter/nf_defrag_ipv4.c:87
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 __ip_local_out+0x3d9/0x4e0 net/ipv4/ip_output.c:118
 ip_local_out+0x26/0x70 net/ipv4/ip_output.c:127
 ipvlan_process_v4_outbound+0x3ef/0x700 drivers/net/ipvlan/ipvlan_core.c:442
 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:540 [inline]
 ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]
 ipvlan_queue_xmit+0xaa2/0x11f0 drivers/net/ipvlan/ipvlan_core.c:668
 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:222
 __netdev_start_xmit include/linux/netdevice.h:4989 [inline]
 netdev_start_xmit include/linux/netdevice.h:5003 [inline]
 xmit_one net/core/dev.c:3547 [inline]
 dev_hard_start_xmit+0x242/0x770 net/core/dev.c:3563
 sch_direct_xmit+0x2b6/0x5f0 net/sched/sch_generic.c:342
 qdisc_restart net/sched/sch_generic.c:407 [inline]
 __qdisc_run+0xbed/0x2150 net/sched/sch_generic.c:415
 qdisc_run+0xda/0x270 include/net/pkt_sched.h:125
 net_tx_action+0x877/0xa30 net/core/dev.c:5197
 __do_softirq+0x2bb/0x942 kernel/softirq.c:553

The buggy address belongs to the object at ffff88802f1dc000
 which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 18 bytes inside of
 freed 4096-byte region [ffff88802f1dc000, ffff88802f1dd000)

The buggy address belongs to the physical page:
page:ffffea0000bc7600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f1d8
head:ffffea0000bc7600 order:3 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 ffff888014c42140 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 12832348429, free_ts 0
 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+0x255/0x680 mm/page_alloc.c:4567
 __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:2190
 allocate_slab mm/slub.c:2354 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2407
 ___slab_alloc+0xd17/0x13e0 mm/slub.c:3540
 __slab_alloc mm/slub.c:3625 [inline]
 __slab_alloc_node mm/slub.c:3678 [inline]
 slab_alloc_node mm/slub.c:3850 [inline]
 kmalloc_trace+0x264/0x360 mm/slub.c:4007
 kmalloc include/linux/slab.h:590 [inline]
 kzalloc include/linux/slab.h:711 [inline]
 kobject_uevent_env+0x28b/0x8f0 lib/kobject_uevent.c:524
 kernel_add_sysfs_param+0x10a/0x130 kernel/params.c:821
 param_sysfs_builtin+0x16e/0x1f0 kernel/params.c:856
 param_sysfs_builtin_init+0x31/0x40 kernel/params.c:990
 do_one_initcall+0x238/0x830 init/main.c:1236
 do_initcall_level+0x157/0x210 init/main.c:1298
 do_initcalls+0x3f/0x80 init/main.c:1314
 kernel_init_freeable+0x42f/0x5d0 init/main.c:1551
 kernel_init+0x1d/0x2a0 init/main.c:1441
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88802f1dbf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802f1dbf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88802f1dc000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff88802f1dc080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f1dc100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	65 48 8b 05 a8 b9 9c 	mov    %gs:0x749cb9a8(%rip),%rax        # 0x749cb9ba
  11:	74
  12:	48 f7 00 08 00 00 00 	testq  $0x8,(%rax)
  19:	75 10                	jne    0x2b
  1b:	66 90                	xchg   %ax,%ax
  1d:	0f 00 2d d6 04 a1 00 	verw   0xa104d6(%rip)        # 0xa104fa
  24:	f3 0f 1e fa          	endbr64
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	fa                   	cli <-- trapping instruction
  2b:	c3                   	ret
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  37:	00 00 00
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop