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CVE-2022-49591— net: dsa: microchip: ksz_common: Fix refcount leak bug

AI Predicted 5.5 Difficulty: Moderate EPSS 0.25% · P17

Possible ATT&CK Techniques 1AI

T1133 · External Remote Services

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinux912aae27c6af6605eae967ab540c5e26bd76d421< 88ec2ff42da3ac93b2437dc52fe25cd4372148e6affected
912aae27c6af6605eae967ab540c5e26bd76d421< 4165e02716518bbbe9c9104b39530d40928bc7ceaffected
912aae27c6af6605eae967ab540c5e26bd76d421< a14bd7475452c51835dd5a0cee4c8fa48dd0b539affected
5.9affected
< 5.9unaffected
5.15.58≤ 5.15.*unaffected
5.18.15≤ 5.18.*unaffected
5.19≤ *unaffected
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I. Basic Information for CVE-2022-49591

Vulnerability Information
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Vulnerability Title
net: dsa: microchip: ksz_common: Fix refcount leak bug
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: microchip: ksz_common: Fix refcount leak bug In ksz_switch_register(), we should call of_node_put() for the reference returned by of_get_child_by_name() which has increased the refcount.
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ksz_switch_register未释放of_get_child_by_name返回的引用。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 912aae27c6af6605eae967ab540c5e26bd76d421 ~ 88ec2ff42da3ac93b2437dc52fe25cd4372148e6 -
LinuxLinux 5.9 -

II. Public POCs for CVE-2022-49591

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III. Intelligence Information for CVE-2022-49591

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Patches & Fixes for CVE-2022-49591 (3)

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

CVE-2022-491499.8 CRITICALrxrpc: Fix call timer start racing with call destruction
CVE-2022-495619.8 CRITICALnetfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-493629.8 CRITICALNFSD: Fix potential use-after-free in nfsd_file_put()
CVE-2022-492019.8 CRITICALibmvnic: fix race between xmit and reset
CVE-2022-491949.8 CRITICALnet: bcmgenet: Use stronger register read/writes to assure ordering
CVE-2022-490939.8 CRITICALskbuff: fix coalescing for page_pool fragment recycling
CVE-2022-492609.8 CRITICALcrypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-494189.8 CRITICALNFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-490949.8 CRITICALnet/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-494079.8 CRITICALdlm: fix plock invalid read
CVE-2022-492809.8 CRITICALNFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-493569.8 CRITICALSUNRPC: Trap RDMA segment overflows
CVE-2022-490589.1 CRITICALcifs: potential buffer overflow in handling symlinks
CVE-2022-493288.8 HIGHmt76: fix use-after-free by removing a non-RCU wcid pointer
CVE-2022-495358.8 HIGHscsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-491148.8 HIGHscsi: libfc: Fix use after free in fc_exch_abts_resp()
CVE-2022-494708.8 HIGHBluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event
CVE-2022-491118.8 HIGHBluetooth: Fix use after free in hci_send_acl
CVE-2022-494718.8 HIGHrtw89: cfo: check mac_id to avoid out-of-bounds
CVE-2022-495198.8 HIGHath10k: 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-2022-49591

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