Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000034
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: Oops: 0000 [#1] SMP NOPTI
CPU: 2 UID: 0 PID: 6667 Comm: systemd-user-ru Tainted: G           OE       6.15.7-200.fc42.x86_64 #1 PREEMPT(lazy) 
Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-5.fc42 04/01/2014
RIP: 0010:path_umount_entry_handler+0x20/0x50 [snapshot]
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 46 70 55 48 89 fd 53 48 8b 00 48 8b 40 08 48 8b 80 f0 00 00 00 <8b> 58 34 89 df e8 d6 cb ff ff 84 c0 75 0c 89 5d 30 31 c0 5b 5d c3
RSP: 0018:ffffd232c07d3d78 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffffc0ac0640 RCX: 0000000000000001
RDX: ffffd232c037d000 RSI: ffffd232c07d3df0 RDI: ffffd232c037d110
RBP: ffffd232c037d110 R08: ffffffff9adc8740 R09: ffffffff995f8c9f
R10: ffff8a15c7ce8000 R11: fffff7fe441f3a00 R12: ffffffff99618b64
R13: fffffffffffffff7 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f5b91012040(0000) GS:ffff8a1993370000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000034 CR3: 0000000249796000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
 <TASK>
 pre_handler_kretprobe+0x3e/0x90
 kprobe_ftrace_handler+0x132/0x1c0
 ? path_umount+0x9/0xe0
 0xffffffffc0ad30da
 ? user_path_at+0x5f/0xa0
 ? path_umount+0x5/0xe0
 path_umount+0x9/0xe0
 __x64_sys_umount+0x7b/0x90
 do_syscall_64+0x7b/0x160
 ? syscall_exit_to_user_mode+0x10/0x210
 ? do_syscall_64+0x87/0x160
 ? exc_page_fault+0x7e/0x1a0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f5b9190280b
Code: c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 31 f6 e9 05 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 c9 35 0f 00 f7 d8
RSP: 002b:00007ffcd01e2288 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5b9190280b
RDX: 0000000557d7dfd0 RSI: 0000000000000002 RDI: 00007ffcd01e22e0
RBP: 00007ffcd01e2390 R08: 0000557d7dfd05e0 R09: 00007f5b919f6ac0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcd01e24b8
R13: 0000000000000003 R14: 00007ffcd01e22e0 R15: 0000557d7c1acc08
 </TASK>
Modules linked in: snapshot(OE) uinput snd_seq_dummy snd_hrtimer rfkill 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_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables qrtr intel_rapl_msr intel_rapl_common snd_hda_codec_generic snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec pktcdvd snd_hda_core snd_hwdep kvm_amd snd_seq iTCO_wdt intel_pmc_bxt snd_seq_device iTCO_vendor_support kvm snd_pcm irqbypass snd_timer i2c_i801 pcspkr i2c_smbus snd virtio_net virtio_balloon joydev net_failover soundcore lpc_ich failover loop nfnetlink vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock zram vmw_vmci lz4hc_compress lz4_compress polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 sha256_ssse3 sha1_ssse3 virtio_gpu virtio_dma_buf serio_raw i2c_dev fuse qemu_fw_cfg
CR2: 0000000000000034