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CVE-2022-49439— powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup

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fsl_rio_setup中的引用计数泄漏。

AI Predicted 5.5 Difficulty: Hard EPSS 0.26% · P18

Possible ATT&CK Techniques 1 AI

T1564.004 · NTFS File Attributes

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux abc3aeae3aaa5c319d02f12649e17ea5929999aa< 51e25fbf20c9152d84a34b7afac15a41fe5c9116 affected
abc3aeae3aaa5c319d02f12649e17ea5929999aa< 5b8aa2ba38c010f47c965dd9bb5a8561813ed649 affected
abc3aeae3aaa5c319d02f12649e17ea5929999aa< bcb6c4c5eb4836a21411dfe8247bf9951eb6e7c3 affected
abc3aeae3aaa5c319d02f12649e17ea5929999aa< 46fd994763cf6884b88a2da712af918f3ed54d7b affected
abc3aeae3aaa5c319d02f12649e17ea5929999aa< 7b668a59ddfb32727e39b06fdf52b28e58c684e0 affected
abc3aeae3aaa5c319d02f12649e17ea5929999aa< c70dd353d37158e06bf8d450d4b31a7091609924 affected
abc3aeae3aaa5c319d02f12649e17ea5929999aa< 5607a77a365df8c0fd5ff43ac424812b95775527 affected
abc3aeae3aaa5c319d02f12649e17ea5929999aa< fcee96924ba1596ca80a6770b2567ca546f9a482 affected
… +10 more rows
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I. Basic Information for CVE-2022-49439

Vulnerability Information
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Vulnerability Title
powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it 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fsl_rio_setup中的引用计数泄漏。
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 abc3aeae3aaa5c319d02f12649e17ea5929999aa ~ 51e25fbf20c9152d84a34b7afac15a41fe5c9116 -
Linux Linux 3.3 -

II. Public POCs for CVE-2022-49439

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III. Intelligence Information for CVE-2022-49439

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Patches & Fixes for CVE-2022-49439 (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-2022-49362 9.8 CRITICAL NFSD: Fix potential use-after-free in nfsd_file_put()
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-2022-49260 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-2022-49407 9.8 CRITICAL dlm: fix plock invalid read
CVE-2022-49094 9.8 CRITICAL net/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-49280 9.8 CRITICAL NFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-49356 9.8 CRITICAL SUNRPC: Trap RDMA segment overflows
CVE-2022-49058 9.1 CRITICAL cifs: potential buffer overflow in handling symlinks
CVE-2022-49500 8.8 HIGH wl1251: dynamically allocate memory used for DMA
CVE-2022-49470 8.8 HIGH Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event
CVE-2022-49114 8.8 HIGH scsi: libfc: Fix use after free in fc_exch_abts_resp()
CVE-2022-49535 8.8 HIGH scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-49471 8.8 HIGH rtw89: cfo: check mac_id to avoid out-of-bounds
CVE-2022-49111 8.8 HIGH Bluetooth: Fix use after free in hci_send_acl
CVE-2022-49519 8.8 HIGH ath10k: skip ath10k_halt during suspend for driver state RESTARTING

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-2022-49439

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