Backtrace

kernel BUG at mm/slub.c:321!
invalid opcode: 0000 [#3] SMP PTI
CPU: 0 PID: 1750 Comm: systemd Tainted: G      D W         5.14.14-200.fc34.x86_64 #1
Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.0 11/01/2019
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:ffffae5a42067de0 EFLAGS: 00010246
RAX: ffff9f14629a9360 RBX: ffff9f14629a9300 RCX: ffff9f14629a9300
RDX: 0000000000150014 RSI: fffff1c8448a6a40 RDI: ffff9f1440042800
RBP: ffffae5a42067e90 R08: 0000000000000001 R09: ffffffffaa10b6a5
R10: 0000000000000001 R11: ffff9f1360230920 R12: fffff1c8448a6a40
R13: ffff9f1440042800 R14: ffff9f14629a9300 R15: ffff9f14629a9300
FS:  00007f02f2cdd340(0000) GS:ffff9f1482c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6f2530b000 CR3: 000000000114a002 CR4: 00000000003706f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ? _raw_spin_unlock_irqrestore+0xa/0x20
 ? __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: 0033:0x7f02f387d1bb
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:00007fff4072cb98 EFLAGS: 00000202 ORIG_RAX: 00000000000000ff
RAX: ffffffffffffffda RBX: 0000562661550320 RCX: 00007f02f387d1bb
RDX: 0000000000000078 RSI: 0000000000000051 RDI: 0000000000000006
RBP: 0000000000000001 R08: 00007f02f3d7d020 R09: 0000000000000004
R10: 0000000000000010 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
Modules linked in: isofs snd_seq_dummy snd_hrtimer snd_seq snd_seq_device snd_timer snd soundcore xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc md4 nls_utf8 cifs libarc4 dns_resolver fscache netfs libdes 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 nf_tables ebtable_nat ebtable_broute 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 rfkill ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter sunrpc vfat fat intel_rapl_msr intel_rapl_common rapl hyperv_drm drm_kms_helper cec joydev hv_utils hv_balloon drm ip_tables xfs crct10dif_pclmul crc32_pclmul crc32c_intel hv_storvsc ghash_clmulni_intel hv_netvsc scsi_transport_fc serio_raw hyperv_keyboard
 hid_hyperv hv_vmbus fuse