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CVE-2022-50033— usb: host: ohci-ppc-of: Fix refcount leak bug

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，该漏洞源于未释放节点引用，可能导致内存泄漏。

AI Predicted 3.3 Difficulty: Hard EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1562

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 796bcae7361c28cf825780f6f1aac9dd3411394e< fe6fe64403710287f0ae61a516954d8a4f7c9e3f affected
796bcae7361c28cf825780f6f1aac9dd3411394e< c5c5bd5cdcc6dc9f75f53d1c89af463d39a2bb96 affected
796bcae7361c28cf825780f6f1aac9dd3411394e< ec583e300aee9f152a64911445092d18e1c36729 affected
796bcae7361c28cf825780f6f1aac9dd3411394e< 0334d23c56ecf1ee1563bb83e29cc5a51ed7fb4e affected
796bcae7361c28cf825780f6f1aac9dd3411394e< cb5dd65e889163e723df1c2f02288cc527a57785 affected
796bcae7361c28cf825780f6f1aac9dd3411394e< 0fc62bbc95319bbd330e3645afc7c286acec9ef8 affected
796bcae7361c28cf825780f6f1aac9dd3411394e< 403132881e66db7aa98b55c6655daedd80d407fd affected
796bcae7361c28cf825780f6f1aac9dd3411394e< 40a959d7042bb7711e404ad2318b30e9f92c6b9b affected
… +10 more rows
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I. Basic Information for CVE-2022-50033

Vulnerability Information
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Vulnerability Title
usb: host: ohci-ppc-of: Fix refcount leak bug
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: host: ohci-ppc-of: Fix refcount leak bug In ohci_hcd_ppc_of_probe(), of_find_compatible_node() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.
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，该漏洞源于未释放节点引用，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 796bcae7361c28cf825780f6f1aac9dd3411394e ~ fe6fe64403710287f0ae61a516954d8a4f7c9e3f -
Linux Linux 2.6.29 -

II. Public POCs for CVE-2022-50033

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2022-50033

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Patches & Fixes for CVE-2022-50033 (1)

Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total

CVE-2025-38075 9.8 CRITICAL scsi: target: iscsi: Fix timeout on deleted connection
CVE-2022-50098 8.8 HIGH scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts
CVE-2025-38052 8.8 HIGH net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done
CVE-2022-49934 8.8 HIGH wifi: mac80211: Fix UAF in ieee80211_scan_rx()
CVE-2022-50164 8.8 HIGH wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue
CVE-2025-38016 8.8 HIGH HID: bpf: abort dispatch if device destroyed
CVE-2025-38074 8.8 HIGH vhost-scsi: protect vq->log_used with vq->mutex
CVE-2022-49974 8.8 HIGH HID: nintendo: fix rumble worker null pointer deref
CVE-2022-49968 8.0 HIGH ieee802154/adf7242: defer destroy_workqueue call
CVE-2022-49939 7.8 HIGH binder: fix UAF of ref->proc caused by race condition
CVE-2022-50022 7.8 HIGH drivers:md:fix a potential use-after-free bug
CVE-2022-50028 7.8 HIGH gadgetfs: ep_io - wait until IRQ finishes
CVE-2022-49935 7.8 HIGH dma-buf/dma-resv: check if the new fence is really later
CVE-2025-38082 7.8 HIGH gpio: virtuser: fix potential out-of-bound write
CVE-2022-50182 7.8 HIGH media: imx-jpeg: Align upwards buffer size
CVE-2025-38080 7.8 HIGH drm/amd/display: Increase block_sequence array size
CVE-2025-38079 7.8 HIGH crypto: algif_hash - fix double free in hash_accept
CVE-2025-38060 7.8 HIGH bpf: copy_verifier_state() should copy 'loop_entry' field
CVE-2025-38062 7.8 HIGH genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie
CVE-2022-50101 7.8 HIGH video: fbdev: vt8623fb: Check the size of screen before memset_io()

Showing top 20 of 362 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50033

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