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CVE-2022-49011— hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new()

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hwmon子系统nv1a_ram_new函数中的PCI设备引用计数泄漏问题。

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1562.001

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 14513ee696a0cd12a19318e433b75a786808adc3< bb75a0d1223d43f97089841aecb28a9b4de687a9 affected
14513ee696a0cd12a19318e433b75a786808adc3< 0dd1da5a15eeecb2fe4cf131b3216fb455af783c affected
14513ee696a0cd12a19318e433b75a786808adc3< 2f74cffc7c85f770b1b1833dccb03b8cde3be102 affected
14513ee696a0cd12a19318e433b75a786808adc3< ea5844f946b1ec5c0b7c115cd7684f34fd48021b affected
14513ee696a0cd12a19318e433b75a786808adc3< c40db1e5f316792b557d2be37e447c20d9ac4635 affected
14513ee696a0cd12a19318e433b75a786808adc3< 6e035d5a2a6b907cfce9a80c5f442c2e459cd34e affected
14513ee696a0cd12a19318e433b75a786808adc3< f598da27acbeee414679cacd14294db3e273e3d2 affected
14513ee696a0cd12a19318e433b75a786808adc3< 7dec14537c5906b8bf40fd6fd6d9c3850f8df11d affected
… +10 more rows
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I. Basic Information for CVE-2022-49011

Vulnerability Information
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Vulnerability Title
hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new() As comment of pci_get_domain_bus_and_slot() says, it returns a pci device with refcount increment, when finish using it, the caller must decrement the reference count by calling pci_dev_put(). So call it after using 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hwmon子系统nv1a_ram_new函数中的PCI设备引用计数泄漏问题。
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 14513ee696a0cd12a19318e433b75a786808adc3 ~ bb75a0d1223d43f97089841aecb28a9b4de687a9 -
Linux Linux 3.14 -

II. Public POCs for CVE-2022-49011

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III. Intelligence Information for CVE-2022-49011

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Patches & Fixes for CVE-2022-49011 (2)

Same Patch Batch · Linux · 2024-10-21 · 372 CVEs total

CVE-2024-50033 9.8 CRITICAL slip: make slhc_remember() more robust against malicious packets
CVE-2024-49855 9.8 CRITICAL nbd: fix race between timeout and normal completion
CVE-2024-47695 9.8 CRITICAL RDMA/rtrs-clt: Reset cid to con_num - 1 to stay in bounds
CVE-2022-48985 9.8 CRITICAL net: mana: Fix race on per-CQ variable napi work_done
CVE-2022-49003 9.8 CRITICAL nvme: fix SRCU protection of nvme_ns_head list
CVE-2024-50043 9.8 CRITICAL nfsd: fix possible badness in FREE_STATEID
CVE-2024-50047 9.8 CRITICAL smb: client: fix UAF in async decryption
CVE-2024-50046 9.8 CRITICAL NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
CVE-2024-49996 9.4 CRITICAL cifs: Fix buffer overflow when parsing NFS reparse points
CVE-2024-47678 9.4 CRITICAL icmp: change the order of rate limits
CVE-2022-48962 8.8 HIGH net: hisilicon: Fix potential use-after-free in hisi_femac_rx()
CVE-2024-49950 8.8 HIGH Bluetooth: L2CAP: Fix uaf in l2cap_connect
CVE-2024-49939 8.8 HIGH wifi: rtw89: avoid to add interface to list twice when SER
CVE-2022-48967 8.8 HIGH NFC: nci: Bounds check struct nfc_target arrays
CVE-2022-48964 8.8 HIGH ravb: Fix potential use-after-free in ravb_rx_gbeth()
CVE-2024-50029 8.8 HIGH Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync
CVE-2024-49930 8.8 HIGH wifi: ath11k: fix array out-of-bound access in SoC stats
CVE-2024-50041 8.8 HIGH i40e: Fix macvlan leak by synchronizing access to mac_filter_hash
CVE-2024-49936 8.8 HIGH net/xen-netback: prevent UAF in xenvif_flush_hash()
CVE-2022-48954 8.8 HIGH s390/qeth: fix use-after-free in hsci

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49011

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