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CVE-2022-49351— net: altera: Fix refcount leak in altera_tse_mdio_create

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altera_tse_mdio_create未释放of_get_child_by_name返回的节点，导致引用计数泄漏。

AI Predicted 3.3 Difficulty: Hard EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1546.010 · AppInit DLLs

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux bbd2190ce96d8fce031f0526c1f970b68adc9d1a< a013fa884d8738ad8455aa1a843b8c9d80c6c833 affected
bbd2190ce96d8fce031f0526c1f970b68adc9d1a< 1fd12298a0e0ca23478c715e672ee64c85670584 affected
bbd2190ce96d8fce031f0526c1f970b68adc9d1a< 5cd0e22fa11f4a21a8c09cc258f20b1474c95801 affected
bbd2190ce96d8fce031f0526c1f970b68adc9d1a< 8174acbef87b8dd8bf3731eba2a5af1ac857e239 affected
bbd2190ce96d8fce031f0526c1f970b68adc9d1a< 96bf5ed057df2d157274d4e2079002f9a9404bb8 affected
bbd2190ce96d8fce031f0526c1f970b68adc9d1a< e31d9ba169860687dba19bdc8fccbfd34077f655 affected
bbd2190ce96d8fce031f0526c1f970b68adc9d1a< 803b217f1fb49a2dbb2123acdb45111b9c48b8be affected
bbd2190ce96d8fce031f0526c1f970b68adc9d1a< 4f850fe0a32c3f1e19b76996a3b1ca32637a14de affected
… +12 more rows
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I. Basic Information for CVE-2022-49351

Vulnerability Information
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Vulnerability Title
net: altera: Fix refcount leak in altera_tse_mdio_create
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: altera: Fix refcount leak in altera_tse_mdio_create Every iteration of for_each_child_of_node() decrements the reference count of the previous node. When break from a for_each_child_of_node() loop, we need to explicitly call of_node_put() on the child node when not need anymore. 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altera_tse_mdio_create未释放of_get_child_by_name返回的节点，导致引用计数泄漏。
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 bbd2190ce96d8fce031f0526c1f970b68adc9d1a ~ a013fa884d8738ad8455aa1a843b8c9d80c6c833 -
Linux Linux 3.15 -

II. Public POCs for CVE-2022-49351

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III. Intelligence Information for CVE-2022-49351

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Patches & Fixes for CVE-2022-49351 (9)

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-2022-49351

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