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CVE-2022-49367— net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register

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mv88e6xxx_mdios_register函数未释放of_get_child_by_name返回的节点指针，可能导致内存泄漏。

AI Predicted 3.3 Difficulty: Moderate EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux a3c53be55c955b7150cda17874c3fcb4eeb97a89< dc1cf8c6f9793546696fded437a5b4c84944c48b affected
a3c53be55c955b7150cda17874c3fcb4eeb97a89< 86c3c5f8e4bd1325e24f6fba9017cade29933377 affected
a3c53be55c955b7150cda17874c3fcb4eeb97a89< a101793994c0a14c70bb4e44c7fda597eeebba0a affected
a3c53be55c955b7150cda17874c3fcb4eeb97a89< 42658e47f1abbbe592007d3ba303de466114d0bb affected
a3c53be55c955b7150cda17874c3fcb4eeb97a89< c1df9cb756e5a9ba1841648c44ee5d92306b9c65 affected
a3c53be55c955b7150cda17874c3fcb4eeb97a89< e0d763d0c7665c7897e4f5a0847ab0c82543345f affected
a3c53be55c955b7150cda17874c3fcb4eeb97a89< 8a1a1255152da4fb934290e7ababc66f24985520 affected
a3c53be55c955b7150cda17874c3fcb4eeb97a89< 02ded5a173619b11728b8bf75a3fd995a2c1ff28 affected
… +10 more rows
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I. Basic Information for CVE-2022-49367

Vulnerability Information
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Vulnerability Title
net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. mv88e6xxx_mdio_register() pass the device node to of_mdiobus_register(). We don't need the device node after it. Add missing of_node_put() to avoid refcount leak.
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mv88e6xxx_mdios_register函数未释放of_get_child_by_name返回的节点指针，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 a3c53be55c955b7150cda17874c3fcb4eeb97a89 ~ dc1cf8c6f9793546696fded437a5b4c84944c48b -
Linux Linux 4.11 -

II. Public POCs for CVE-2022-49367

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III. Intelligence Information for CVE-2022-49367

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Patches & Fixes for CVE-2022-49367 (8)

Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total

CVE-2022-49561 9.8 CRITICAL netfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-49149 9.8 CRITICAL rxrpc: Fix call timer start racing with call destruction
CVE-2022-49407 9.8 CRITICAL dlm: fix plock invalid read
CVE-2022-49356 9.8 CRITICAL SUNRPC: Trap RDMA segment overflows
CVE-2022-49362 9.8 CRITICAL NFSD: Fix potential use-after-free in nfsd_file_put()
CVE-2022-49280 9.8 CRITICAL NFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-49260 9.8 CRITICAL crypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-49418 9.8 CRITICAL NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-49201 9.8 CRITICAL ibmvnic: fix race between xmit and reset
CVE-2022-49194 9.8 CRITICAL net: bcmgenet: Use stronger register read/writes to assure ordering
CVE-2022-49093 9.8 CRITICAL skbuff: fix coalescing for page_pool fragment recycling
CVE-2022-49094 9.8 CRITICAL net/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-49058 9.1 CRITICAL cifs: potential buffer overflow in handling symlinks
CVE-2022-49416 8.8 HIGH wifi: mac80211: fix use-after-free in chanctx code
CVE-2022-49535 8.8 HIGH scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-49238 8.8 HIGH ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855
CVE-2022-49519 8.8 HIGH ath10k: skip ath10k_halt during suspend for driver state RESTARTING
CVE-2022-49138 8.8 HIGH Bluetooth: hci_event: Ignore multiple conn complete events
CVE-2022-49471 8.8 HIGH rtw89: cfo: check mac_id to avoid out-of-bounds
CVE-2022-49159 8.8 HIGH scsi: qla2xxx: Implement ref count for SRB

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49367

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