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CVE-2022-50302— lockd: set other missing fields when unlocking files

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未初始化文件锁结构的所有字段，可能导致空指针取消引用。

CVSS 7.5 · High EPSS 0.37% · P30

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 486c1acf14233b1ff7b37e6f026a737a2f7f53f1< 31c93ee5f1e4dc278b562e20f3c3274ac34997f3 affected
9c3eef773cf4a8a18f959234bbb4c0a55c31ab71< 95d42a8d3d4ae84a0bd3ee23e1fee240cdf0a9f0 affected
aec158242b87a43d83322e99bc71ab4428e5ab79< 688575aef211b0986fc51010116f5888a99d76a2 affected
aec158242b87a43d83322e99bc71ab4428e5ab79< d7aa9f7778316beb690f6e2763b6d672ad8b256f affected
aec158242b87a43d83322e99bc71ab4428e5ab79< 18ebd35b61b4693a0ddc270b6d4f18def232e770 affected
58c3f48a540b821b3253e2dc31c8fa237293ffc9 affected
5.15.56< 5.15.86 affected
5.18.13< 5.19 affected
… +6 more rows
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I. Basic Information for CVE-2022-50302

Vulnerability Information
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Vulnerability Title
lockd: set other missing fields when unlocking files
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: lockd: set other missing fields when unlocking files vfs_lock_file() expects the struct file_lock to be fully initialised by the caller. Re-exported NFSv3 has been seen to Oops if the fl_file field is NULL.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未初始化文件锁结构的所有字段，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 486c1acf14233b1ff7b37e6f026a737a2f7f53f1 ~ 31c93ee5f1e4dc278b562e20f3c3274ac34997f3 -
Linux Linux 5.19 -

II. Public POCs for CVE-2022-50302

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III. Intelligence Information for CVE-2022-50302

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Same Patch Batch · Linux · 2025-09-15 · 210 CVEs total

CVE-2022-50235 9.8 CRITICAL NFSD: Protect against send buffer overflow in NFSv2 READDIR
CVE-2022-50335 9.8 CRITICAL 9p: set req refcount to zero to avoid uninitialized usage
CVE-2023-53192 9.8 CRITICAL vxlan: Fix nexthop hash size
CVE-2023-53253 8.8 HIGH HID: nvidia-shield: Reference hid_device devm allocation of input_dev name
CVE-2023-53226 8.8 HIGH wifi: mwifiex: Fix OOB and integer underflow when rx packets
CVE-2022-50241 8.8 HIGH NFSD: fix use-after-free on source server when doing inter-server copy
CVE-2023-53194 8.4 HIGH fs/ntfs3: Add length check in indx_get_root
CVE-2023-53213 8.1 HIGH wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()
CVE-2023-53186 8.1 HIGH skbuff: Fix a race between coalescing and releasing SKBs
CVE-2022-50310 7.8 HIGH ip6mr: fix UAF issue in ip6mr_sk_done() when addrconf_init_net() failed
CVE-2023-53254 7.8 HIGH cacheinfo: Fix shared_cpu_map to handle shared caches at different levels
CVE-2023-53252 7.8 HIGH Bluetooth: use RCU for hci_conn_params and iterate safely in hci_sync
CVE-2023-53170 7.8 HIGH net: dsa: Removed unneeded of_node_put in felix_parse_ports_node
CVE-2023-53176 7.8 HIGH serial: 8250: Reinit port->pm on port specific driver unbind
CVE-2023-53178 7.8 HIGH mm: fix zswap writeback race condition
CVE-2023-53179 7.8 HIGH netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
CVE-2023-53184 7.8 HIGH arm64/sme: Set new vector length before reallocating
CVE-2022-50315 7.8 HIGH ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS
CVE-2023-53187 7.8 HIGH btrfs: fix use-after-free of new block group that became unused
CVE-2025-39800 7.8 HIGH btrfs: abort transaction on unexpected eb generation at btrfs_copy_root()

Showing top 20 of 210 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50302

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