Backtrace

kernel BUG at mm/slub.c:321!
invalid opcode: 0000 [#3] SMP PTI
CPU: 0 PID: 1608 Comm: systemd Tainted: G      D           5.14.14-200.fc34.x86_64 #1
Hardware name: Acer Aspire XC-705/Aspire XC-705, BIOS P11-B4 06/11/2015
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:ffffb198c3ed7de0 EFLAGS: 00010246
RAX: ffff95c5a8ddf420 RBX: ffff95c5a8ddf3c0 RCX: ffff95c5a8ddf3c0
RDX: 000000008015000b RSI: fffffb0cc4a377c0 RDI: ffff95c580042800
RBP: ffffb198c3ed7e90 R08: 0000000000000001 R09: ffffffff9210b6a5
R10: 0000000000000001 R11: ffff95c5cc133908 R12: fffffb0cc4a377c0
R13: ffff95c580042800 R14: ffff95c5a8ddf3c0 R15: ffff95c5a8ddf3c0
FS:  00007f647eb8b340(0000) GS:ffff95c696c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d94dcfaca0 CR3: 000000013f05a005 CR4: 00000000001706f0
Call Trace:
 ? __wake_up_common_lock+0x7a/0x90
 ? fsnotify_add_event+0x11f/0x180
 ? 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: 0033:0x7f647f72b1bb
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:00007ffded6d3748 EFLAGS: 00000202 ORIG_RAX: 00000000000000ff
RAX: ffffffffffffffda RBX: 000055d94dd7d450 RCX: 00007f647f72b1bb
RDX: 0000000000000000 RSI: 000000000000006e RDI: 0000000000000006
RBP: 0000000000000001 R08: 000055d94dd8d2c0 R09: 0000000000000004
R10: 0000000000000010 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
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_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec uvcvideo snd_usb_audio snd_hda_core videobuf2_vmalloc snd_usbmidi_lib intel_rapl_msr ath3k snd_rawmidi intel_rapl_common videobuf2_memops ath9k snd_hwdep btusb ath9k_common videobuf2_v4l2 x86_pkg_temp_thermal snd_seq ath9k_hw intel_powerclamp
 videobuf2_common coretemp videodev btrtl mac80211 snd_seq_device btbcm mc btintel snd_pcm kvm_intel ath bluetooth snd_timer cfg80211 kvm ecdh_generic snd iTCO_wdt intel_pmc_bxt rfkill irqbypass soundcore iTCO_vendor_support libarc4 mei_hdcp rapl intel_cstate at24 intel_uncore mei_me lpc_ich mei i2c_i801 pcspkr i2c_smbus intel_pch_thermal wmi_bmof zram ip_tables ums_realtek uas usb_storage nouveau drm_ttm_helper ttm i2c_algo_bit mxm_wmi drm_kms_helper crct10dif_pclmul cec crc32_pclmul drm crc32c_intel r8169 ghash_clmulni_intel wmi video fuse