==================================================================
BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:199 [inline]
BUG: KASAN: use-after-free in list_empty include/linux/list.h:282 [inline]
BUG: KASAN: use-after-free in waitqueue_active include/linux/wait.h:126 [inline]
BUG: KASAN: use-after-free in wq_has_sleeper include/linux/wait.h:160 [inline]
BUG: KASAN: use-after-free in skwq_has_sleeper include/net/sock.h:2082 [inline]
BUG: KASAN: use-after-free in sock_def_write_space+0x642/0x670 net/core/sock.c:2813
Read of size 8 at addr ffff888092e24af8 by task swapper/1/0

CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.5.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0xd4/0x30b mm/kasan/report.c:374
 __kasan_report.cold+0x1b/0x32 mm/kasan/report.c:506
 kasan_report+0x12/0x20 mm/kasan/common.c:639
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/generic_report.c:135
 __read_once_size include/linux/compiler.h:199 [inline]
 list_empty include/linux/list.h:282 [inline]
 waitqueue_active include/linux/wait.h:126 [inline]
 wq_has_sleeper include/linux/wait.h:160 [inline]
 skwq_has_sleeper include/net/sock.h:2082 [inline]
 sock_def_write_space+0x642/0x670 net/core/sock.c:2813
 sock_wfree+0x1e1/0x260 net/core/sock.c:1958
 skb_release_head_state+0xeb/0x260 net/core/skbuff.c:653
 skb_release_all+0x16/0x60 net/core/skbuff.c:664
 _kfree_skb_defer net/core/skbuff.c:874 [inline]
 napi_consume_skb+0x19d/0x5d0 net/core/skbuff.c:919
 free_old_xmit_skbs+0xee/0x250 drivers/net/virtio_net.c:1366
 virtnet_poll_tx+0x214/0x3a0 drivers/net/virtio_net.c:1493
 napi_poll net/core/dev.c:6582 [inline]
 net_rx_action+0x508/0x1120 net/core/dev.c:6650
 __do_softirq+0x262/0x98c kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x19b/0x1e0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 do_IRQ+0xe3/0x280 arch/x86/kernel/irq.c:263
 common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:607
 </IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: 68 b7 d7 f9 eb 8a cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 04 3c 4c 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d f4 3b 4c 00 fb f4 <c3> cc 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 0e 8d 86 f9 e8 89
RSP: 0018:ffffc90000d3fd68 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffd9
RAX: 1ffffffff13275b2 RBX: ffff8880a99fc340 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a99fcbd4
RBP: ffffc90000d3fd98 R08: ffff8880a99fc340 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffffff8a82e700 R14: 0000000000000000 R15: 0000000000000001
 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:686
 default_idle_call+0x84/0xb0 kernel/sched/idle.c:94
 cpuidle_idle_call kernel/sched/idle.c:154 [inline]
 do_idle+0x3c8/0x6e0 kernel/sched/idle.c:269
 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:361
 start_secondary+0x2f4/0x410 arch/x86/kernel/smpboot.c:264
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:242

Allocated by task 16769:
 save_stack+0x23/0x90 mm/kasan/common.c:72
 set_track mm/kasan/common.c:80 [inline]
 __kasan_kmalloc mm/kasan/common.c:513 [inline]
 __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:486
 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:521
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc mm/slab.c:3320 [inline]
 kmem_cache_alloc+0x121/0x710 mm/slab.c:3484
 sock_alloc_inode+0x1c/0x1d0 net/socket.c:253
 alloc_inode+0x68/0x1e0 fs/inode.c:231
 new_inode_pseudo+0x19/0xf0 fs/inode.c:927
 sock_alloc+0x41/0x270 net/socket.c:573
 __sock_create+0xc2/0x730 net/socket.c:1397
 sock_create net/socket.c:1484 [inline]
 __sys_socket+0x103/0x220 net/socket.c:1526
 __do_sys_socket net/socket.c:1535 [inline]
 __se_sys_socket net/socket.c:1533 [inline]
 __x64_sys_socket+0x73/0xb0 net/socket.c:1533
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 16:
 save_stack+0x23/0x90 mm/kasan/common.c:72
 set_track mm/kasan/common.c:80 [inline]
 kasan_set_free_info mm/kasan/common.c:335 [inline]
 __kasan_slab_free+0x102/0x150 mm/kasan/common.c:474
 kasan_slab_free+0xe/0x10 mm/kasan/common.c:483
 __cache_free mm/slab.c:3426 [inline]
 kmem_cache_free+0x86/0x320 mm/slab.c:3694
 sock_free_inode+0x20/0x30 net/socket.c:274
 i_callback+0x44/0x80 fs/inode.c:220
 rcu_do_batch kernel/rcu/tree.c:2186 [inline]
 rcu_core+0x5e1/0x1390 kernel/rcu/tree.c:2410
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2419
 __do_softirq+0x262/0x98c kernel/softirq.c:292

The buggy address belongs to the object at ffff888092e24a80
 which belongs to the cache sock_inode_cache(65:syz3) of size 1152
The buggy address is located 120 bytes inside of
 1152-byte region [ffff888092e24a80, ffff888092e24f00)
The buggy address belongs to the page:
page:ffffea00024b8900 refcount:1 mapcount:0 mapping:ffff8880950a01c0 index:0xffff888092e24ffd
raw: 00fffe0000000200 ffffea00024bb8c8 ffffea00022f0f48 ffff8880950a01c0
raw: ffff888092e24ffd ffff888092e24080 0000000100000003 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888092e24980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888092e24a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888092e24a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                                ^
 ffff888092e24b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888092e24b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================