Backtrace

list_add corruption. prev->next should be next (ffff9671af4bb190), but was ffff9671ce90b058. (prev=ffff9671ce90b058).
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kernel BUG at lib/list_debug.c:26!
invalid opcode: 0000 [#1] SMP NOPTI
CPU: 1 PID: 7540 Comm: Chrome_ChildIOT Not tainted 5.8.18-100.fc31.x86_64 #1
Hardware name: Dell Inc. XPS 15 7590/0T8KGX, BIOS 1.9.1 12/14/2020
RIP: 0010:__list_add_valid.cold+0x3d/0x3f
Code: f2 4c 89 c1 48 89 fe 48 c7 c7 60 5b 42 ab e8 0c 80 b5 ff 0f 0b 48 89 d1 4c 89 c6 4c 89 ca 48 c7 c7 08 5b 42 ab e8 f5 7f b5 ff <0f> 0b 48 89 fe 48 c7 c7 98 5b 42 ab e8 e4 7f b5 ff 0f 0b 48 c7 c7
RSP: 0018:ffffb4f3c229bb58 EFLAGS: 00010282
RAX: 0000000000000075 RBX: ffff9671af4babc0 RCX: 0000000000000000
RDX: ffff96741c467060 RSI: ffff96741c458d00 RDI: ffff96741c458d00
RBP: ffff9671ce90aa00 R08: ffff96741c458d00 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: ffff9671ce90aa58
R13: ffff9671ce90b058 R14: ffff9671af4bb190 R15: ffff9671af4babc0
FS:  00007f0691f2d700(0000) GS:ffff96741c440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000252003b07000 CR3: 000000072da1a001 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tcp_update_skb_after_send+0x69/0xd0
 __tcp_transmit_skb+0x56d/0xb70
 tcp_write_xmit+0x395/0x11f0
 __tcp_push_pending_frames+0x32/0xf0
 tcp_sendmsg_locked+0xc49/0xd90
 tcp_sendmsg+0x28/0x40
 sock_sendmsg+0x57/0x60
 __sys_sendto+0xee/0x160
 ? do_user_addr_fault+0x1e4/0x460
 ? __sys_getsockopt+0xc4/0xf0
 __x64_sys_sendto+0x25/0x30
 do_syscall_64+0x4d/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f06a3daec8c
Code: 89 4c 24 1c e8 75 f8 ff ff 44 8b 54 24 1c 8b 3c 24 45 31 c9 89 c5 48 8b 54 24 10 48 8b 74 24 08 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 30 89 ef 48 89 04 24 e8 a1 f8 ff ff 48 8b 04
RSP: 002b:00007f0691f2b700 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00002520028c8780 RCX: 00007f06a3daec8c
RDX: 00000000000032a6 RSI: 0000252001d38000 RDI: 0000000000000020
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 00007f0691f2b808
R13: 000025200189bb20 R14: 00000000000032a6 R15: 0000252002b447d0
Modules linked in: uinput rfcomm nf_conntrack_netlink xt_addrtype br_netfilter ccm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun overlay ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat squashfs loop snd_sof_pci snd_sof_intel_byt snd_sof_intel_ipc snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_xtensa_dsp snd_sof_intel_hda snd_sof snd_hda_codec_hdmi snd_soc_skl snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_realtek snd_compress snd_hda_codec_generic ac97_bus snd_pcm_dmaengine snd_hda_intel
 snd_intel_dspcfg x86_pkg_temp_thermal iwlmvm intel_powerclamp snd_hda_codec coretemp dell_laptop snd_hda_core kvm_intel ledtrig_audio iTCO_wdt mac80211 uvcvideo snd_hwdep intel_pmc_bxt mei_hdcp ee1004 mei_wdt snd_seq iTCO_vendor_support intel_rapl_msr videobuf2_vmalloc dell_smm_hwmon libarc4 snd_seq_device videobuf2_memops kvm btusb iwlwifi dell_wmi btrtl dell_smbios irqbypass videobuf2_v4l2 btbcm snd_pcm dcdbas rapl videobuf2_common btintel intel_cstate bluetooth cfg80211 intel_uncore videodev snd_timer dell_wmi_descriptor intel_wmi_thunderbolt wmi_bmof snd i2c_i801 mei_me ecdh_generic soundcore mc i2c_smbus cdc_acm ecc thunderbolt rfkill mei joydev ucsi_acpi idma64 processor_thermal_device typec_ucsi intel_rapl_common intel_soc_dts_iosf intel_pch_thermal typec int3403_thermal int340x_thermal_zone dell_smo8800 int3400_thermal intel_hid acpi_pad acpi_thermal_rel sparse_keymap binfmt_misc ip_tables hid_logitech_hidpp hid_logitech_dj wacom hid_multitouch i915 nouveau ttm
 i2c_algo_bit rtsx_pci_sdmmc mmc_core drm_kms_helper cec mxm_wmi crct10dif_pclmul crc32_pclmul drm crc32c_intel nvme ghash_clmulni_intel nvme_core serio_raw rtsx_pci i2c_hid pinctrl_cannonlake video wmi pinctrl_intel fuse