Backtrace

kernel BUG at mm/slub.c:321!
invalid opcode: 0000 [#1] SMP PTI
CPU: 3 PID: 1590 Comm: systemd Not tainted 5.14.9-200.fc34.x86_64 #1
Hardware name: Dell Inc. Latitude 3480/0JV9NC, BIOS 1.15.1 01/27/2021
RIP: 0010:__slab_free+0x245/0x4a0
Code: 0f b6 5c 24 1b 44 8b 44 24 1c 48 89 44 24 08 48 8b 54 24 20 4c 8b 4c 24 28 e9 8a fe ff ff 41 f7 45 08 00 0d 21 00 75 98 eb 8d <0f> 0b 49 3b 54 24 28 0f 85 53 ff ff ff 49 8b 44 24 08 49 89 5c 24
RSP: 0018:ffffc0f7014bbde0 EFLAGS: 00010246
RAX: ffff9e563fa59f60 RBX: ffff9e563fa59f00 RCX: ffff9e563fa59f00
RDX: 0000000000150013 RSI: fffff8c5c5fe9640 RDI: ffff9e55c0042800
RBP: ffffc0f7014bbe90 R08: 0000000000000001 R09: ffffffff9a10b525
R10: 0000000000000000 R11: ffff9e564200f230 R12: fffff8c5c5fe9640
R13: ffff9e55c0042800 R14: ffff9e563fa59f00 R15: ffff9e563fa59f00
FS:  00007f7c98c8f340(0000) GS:ffff9e570f780000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560a0e660900 CR3: 000000017176a001 CR4: 00000000003706e0
Call Trace:
 ? __wake_up_common_lock+0x7a/0x90
 ? call_rcu+0xcb/0x620
 ? put_ucounts+0x65/0x70
 kfree+0x369/0x3c0
 ? refcount_dec_and_lock+0x12/0x80
 put_ucounts+0x65/0x70
 __x64_sys_inotify_rm_watch+0x72/0xc0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7c9982f1bb
Code: 73 01 c3 48 8b 0d bd 1c 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 ff 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 8d 1c 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007fffb75bd2c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000ff
RAX: ffffffffffffffda RBX: 0000560a0e5e5940 RCX: 00007f7c9982f1bb
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000006
RBP: 0000000000000001 R08: 0000560a0e660900 R09: 0000000000000004
R10: 0000000000000010 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000560a0e5e5940
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 snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_codec_hdmi snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp coretemp snd_ctl_led kvm_intel snd_compress ac97_bus snd_hda_codec_realtek ath10k_pci snd_hda_codec_generic ath10k_core snd_pcm_dmaengine dell_rbtn snd_hda_intel snd_intel_dspcfg dell_laptop
 snd_intel_sdw_acpi mei_hdcp iTCO_wdt ee1004 intel_pmc_bxt iTCO_vendor_support dell_smm_hwmon intel_rapl_msr snd_hda_codec mac80211 kvm snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm irqbypass ath rapl intel_cstate btusb btrtl btbcm cfg80211 btintel intel_uncore bluetooth snd_timer dell_wmi ledtrig_audio dell_smbios dcdbas snd uvcvideo wmi_bmof pcspkr dell_wmi_descriptor videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 i2c_i801 videobuf2_common i2c_smbus soundcore videodev processor_thermal_device_pci_legacy mei_me intel_hid processor_thermal_device libarc4 sparse_keymap joydev processor_thermal_rfim mei ecdh_generic mc processor_thermal_mbox processor_thermal_rapl idma64 rfkill intel_rapl_common intel_xhci_usb_role_switch intel_pch_thermal intel_soc_dts_iosf dell_smo8800 int3403_thermal acpi_pad int3402_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel zram ip_tables i915 hid_multitouch hid_logitech_hidpp i2c_algo_bit ttm drm_kms_helper cec
 crct10dif_pclmul crc32_pclmul drm crc32c_intel r8169 ghash_clmulni_intel i2c_hid_acpi serio_raw hid_logitech_dj wmi i2c_hid video pinctrl_sunrisepoint fuse