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CVE-2022-49861— dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove()

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dmaengine mv_xor_v2驱动中mv_xor_v2_remove函数未平衡clk_prepare_enable调用。

AI Predicted 3.7 Difficulty: Easy EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 3bdcced41936b054470639c6a76ae033df1074e3< 04f2cc56d80a1ac058045a7835c5bfd910f17863 affected
2299285fb1819ef8459c116fd1eafe1458bb9ca1< 4b6641c3a2ba95ddcfecec263b4a5e572a4b0641 affected
3cd2c313f1d618f92d1294addc6c685c17065761< 20479886b40c0ed4864a5fc8490a1f6b70cccf1b affected
3cd2c313f1d618f92d1294addc6c685c17065761< 1d84887327659c58a6637060ac8c50c3a952a163 affected
3cd2c313f1d618f92d1294addc6c685c17065761< 0b7ee3d50f32d277bf024b4ddb4de54da43a3025 affected
3cd2c313f1d618f92d1294addc6c685c17065761< 992e966caf57e00855edbd79f19d911809732a69 affected
3cd2c313f1d618f92d1294addc6c685c17065761< a1cb72e20a64a3c83f9b4ee993fbf97e4c1d7714 affected
3cd2c313f1d618f92d1294addc6c685c17065761< 081195d17a0c4c636da2b869bd5809d42e8cbb13 affected
… +12 more rows
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I. Basic Information for CVE-2022-49861

Vulnerability Information
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Vulnerability Title
dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove() A clk_prepare_enable() call in the probe is not balanced by a corresponding clk_disable_unprepare() in the remove function. Add the missing call.
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dmaengine mv_xor_v2驱动中mv_xor_v2_remove函数未平衡clk_prepare_enable调用。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 3bdcced41936b054470639c6a76ae033df1074e3 ~ 04f2cc56d80a1ac058045a7835c5bfd910f17863 -
Linux Linux 4.16 -

II. Public POCs for CVE-2022-49861

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III. Intelligence Information for CVE-2022-49861

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Patches & Fixes for CVE-2022-49861 (8)

Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total

CVE-2025-37750 9.8 CRITICAL smb: client: fix UAF in decryption with multichannel
CVE-2025-37778 9.8 CRITICAL ksmbd: Fix dangling pointer in krb_authenticate
CVE-2022-49770 9.8 CRITICAL ceph: avoid putting the realm twice when decoding snaps fails
CVE-2022-49931 8.8 HIGH IB/hfi1: Correctly move list in sc_disable()
CVE-2025-37776 8.8 HIGH ksmbd: fix use-after-free in smb_break_all_levII_oplock()
CVE-2025-37777 8.8 HIGH ksmbd: fix use-after-free in __smb2_lease_break_noti()
CVE-2025-37790 8.8 HIGH net: mctp: Set SOCK_RCU_FREE
CVE-2022-49910 8.8 HIGH Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
CVE-2022-49886 8.4 HIGH x86/tdx: Panic on bad configs that #VE on "private" memory access
CVE-2025-23159 8.4 HIGH media: venus: hfi: add a check to handle OOB in sfr region
CVE-2025-37749 8.2 HIGH net: ppp: Add bound checking for skb data on ppp_sync_txmung
CVE-2025-37774 7.8 HIGH slab: ensure slab->obj_exts is clear in a newly allocated slab page
CVE-2025-37789 7.8 HIGH net: openvswitch: fix nested key length validation in the set() action
CVE-2025-37779 7.8 HIGH lib/iov_iter: fix to increase non slab folio refcount
CVE-2022-49920 7.8 HIGH netfilter: nf_tables: netlink notifier might race to release objects
CVE-2022-49919 7.8 HIGH netfilter: nf_tables: release flow rule object from commit path
CVE-2025-37756 7.8 HIGH net: tls: explicitly disallow disconnect
CVE-2025-37761 7.8 HIGH drm/xe: Fix an out-of-bounds shift when invalidating TLB
CVE-2025-37763 7.8 HIGH drm/imagination: take paired job reference
CVE-2025-23141 7.8 HIGH KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses

Showing top 20 of 245 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49861

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