Backtrace

WARNING: CPU: 3 PID: 14837 at lib/refcount.c:28 refcount_warn_saturate+0xa6/0xf0
Modules linked in: uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter bnep sunrpc vfat fat squashfs loop ath10k_pci joydev ath10k_core edac_mce_amd btusb btrtl btbcm ccp mac80211 btintel kvm snd_hda_codec_realtek bluetooth snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi uvcvideo snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec irqbypass videobuf2_vmalloc ath videobuf2_memops snd_hda_core videobuf2_v4l2 snd_hwdep cfg80211 snd_seq videobuf2_common snd_seq_device
 pcspkr snd_pcm videodev wmi_bmof ecdh_generic k10temp ecc mc fam15h_power snd_timer ideapad_laptop snd platform_profile sparse_keymap i2c_piix4 libarc4 soundcore rfkill acpi_cpufreq elan_i2c zram ip_tables amdgpu drm_ttm_helper ttm iommu_v2 gpu_sched crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper cec ghash_clmulni_intel serio_raw drm sp5100_tco r8169 wmi video i2c_hid_acpi i2c_hid fuse
CPU: 3 PID: 14837 Comm: IPC I/O Child Tainted: G        W         5.13.12-200.fc34.x86_64 #1
Hardware name: LENOVO 80XS/LNVNB161216, BIOS 5QCN24WW 07/29/2019
RIP: 0010:refcount_warn_saturate+0xa6/0xf0
Code: 05 bb e3 8e 01 01 e8 54 21 58 00 0f 0b c3 80 3d a9 e3 8e 01 00 75 95 48 c7 c7 98 2c 62 9a c6 05 99 e3 8e 01 01 e8 35 21 58 00 <0f> 0b c3 80 3d 88 e3 8e 01 00 0f 85 72 ff ff ff 48 c7 c7 f0 2c 62
RSP: 0018:ffffb9ea0a3dfb68 EFLAGS: 00010296
RAX: 0000000000000026 RBX: ffff977aacb7f900 RCX: 0000000000000027
RDX: ffff977ab7598a08 RSI: 0000000000000001 RDI: ffff977ab7598a00
RBP: ffff977aabdf3400 R08: 0000000000000000 R09: ffffb9ea0a3df9a0
R10: ffffb9ea0a3df998 R11: ffffffff9ad468c8 R12: ffff977aabdf354c
R13: ffff977aabdf14d0 R14: 00000000000000e4 R15: ffff977aacb7f900
FS:  00007fd3d70c5640(0000) GS:ffff977ab7580000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00001120365e9000 CR3: 000000004e6fa000 CR4: 00000000001506e0
Call Trace:
 sock_wfree+0xa0/0xb0
 unix_destruct_scm+0x74/0xa0
 skb_release_head_state+0x32/0x80
 consume_skb+0x2a/0xa0
 unix_stream_read_generic+0x78c/0x860
 unix_stream_recvmsg+0x43/0x50
 ? unix_copy_addr+0x30/0x30
 ____sys_recvmsg+0x87/0x170
 ? __switch_to+0x259/0x460
 ? __check_object_size+0x46/0x150
 ? _copy_from_user+0x28/0x60
 ? iovec_from_user.part.0+0xcd/0x180
 ___sys_recvmsg+0x79/0xe0
 ? pipe_read+0x33f/0x440
 ? ep_done_scan+0xbd/0x100
 ? do_epoll_wait+0xb6/0x730
 __sys_recvmsg+0x46/0x80
 do_syscall_64+0x40/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd3e1cc967d
Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 9a ef ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2f 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 ee ef ff ff 48
RSP: 002b:00007fd3d70c4870 EFLAGS: 00000293 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007fd3d6ffd000 RCX: 00007fd3e1cc967d
RDX: 0000000000000040 RSI: 00007fd3d70c4930 RDI: 0000000000000015
RBP: 00007fd3d70c4930 R08: 0000000000000000 R09: 0000000000000015
R10: 0000000000000002 R11: 0000000000000293 R12: 00007fd3e1498100
R13: 00007fd3de75ecf0 R14: 0000000000000015 R15: 00007fd3e1498100