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CVE-2022-50318— perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox()

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，该漏洞源于未正确减少pci_get_device返回设备的引用计数，可能导致内存泄漏。

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 21

VendorProduct Version RangeStatus
Linux Linux a8e87042482fd2d31c5cee62875b2ae75759ae8b< 5a96c10a56037db006ba6769307a9731cf6073be affected
319a06e58ed7f1443f7133c05513de470f90628d< e293263248f25c6b8aa1caf7c1103d40aa03311e affected
6f8315e5d9511ed1cf28ee2afbc9f89ff693de7b< c0539d5d474ee6fa4ebc41f927a0f98f81244f25 affected
9d480158ee86ad606d3a8baaf81e6b71acbfd7d5< 3485f197518061371568f842405159aa9e4df551 affected
9d480158ee86ad606d3a8baaf81e6b71acbfd7d5< 48f32b9a74e2ac8e854bb87bfefdbc745125a123 affected
9d480158ee86ad606d3a8baaf81e6b71acbfd7d5< bd66877c0b3b42eed0ecee0bd2a2a505c1e54177 affected
9d480158ee86ad606d3a8baaf81e6b71acbfd7d5< 1ff9dd6e7071a561f803135c1d684b13c7a7d01d affected
d2c79105a90323a2a93484c85f9ac419ae9b183d affected
… +13 more rows
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I. Basic Information for CVE-2022-50318

Vulnerability Information
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Vulnerability Title
perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox() pci_get_device() will increase the reference count for the returned 'dev'. We need to call pci_dev_put() to decrease the reference count. Since 'dev' is only used in pci_read_config_dword(), let's add pci_dev_put() right after it.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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，该漏洞源于未正确减少pci_get_device返回设备的引用计数，可能导致内存泄漏。
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 a8e87042482fd2d31c5cee62875b2ae75759ae8b ~ 5a96c10a56037db006ba6769307a9731cf6073be -
Linux Linux 5.12 -

II. Public POCs for CVE-2022-50318

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III. Intelligence Information for CVE-2022-50318

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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-2023-53254 7.8 HIGH cacheinfo: Fix shared_cpu_map to handle shared caches at different levels
CVE-2023-53219 7.8 HIGH media: netup_unidvb: fix use-after-free at del_timer()
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-2022-50315 7.8 HIGH ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS
CVE-2023-53184 7.8 HIGH arm64/sme: Set new vector length before reallocating
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

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