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CVE-2022-48775— Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj

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Drivers:hv模块中发现内存泄漏问题。kobject_init_and_add函数即使在失败时也会增加引用。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1562.001

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c< 417947891bd5ae327f15efed1a0da2b12ef24962 affected
c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c< fe595759c2a4a5bb41c438474f15947d8ae32f5c affected
c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c< 91d8866ca55232d21995a3d54fac96de33c9e20c affected
c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c< c377e2ba78d3fe9a1f0b4ec424e75f81da7e81e9 affected
c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c< 92e25b637cd4e010f776c86e4810300e773eac5c affected
c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c< 8bc69f86328e87a0ffa79438430cc82f3aa6a194 affected
4.15 affected
< 4.15 unaffected
… +6 more rows
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I. Basic Information for CVE-2022-48775

Vulnerability Information
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Vulnerability Title
Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add()： If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put().
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Drivers:hv模块中发现内存泄漏问题。kobject_init_and_add函数即使在失败时也会增加引用。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c ~ 417947891bd5ae327f15efed1a0da2b12ef24962 -
Linux Linux 4.15 -

II. Public POCs for CVE-2022-48775

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III. Intelligence Information for CVE-2022-48775

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Other References for CVE-2022-48775 (6)

Same Patch Batch · Linux · 2024-07-16 · 98 CVEs total

CVE-2022-48851 9.8 CRITICAL staging: gdm724x: fix use after free in gdm_lte_rx()
CVE-2022-48788 9.8 CRITICAL nvme-rdma: fix possible use-after-free in transport error_recovery work
CVE-2022-48789 9.8 CRITICAL nvme-tcp: fix possible use-after-free in transport error_recovery work
CVE-2022-48790 9.8 CRITICAL nvme: fix a possible use-after-free in controller reset during load
CVE-2022-48829 9.1 CRITICAL NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
CVE-2022-48828 9.1 CRITICAL NFSD: Fix ia_size underflow
CVE-2022-48782 8.8 HIGH mctp: fix use after free
CVE-2022-48785 8.8 HIGH ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()
CVE-2022-48830 8.8 HIGH can: isotp: fix potential CAN frame reception race in isotp_rcv()
CVE-2022-48864 8.8 HIGH vdpa/mlx5: add validation for VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command
CVE-2022-48791 7.8 HIGH scsi: pm8001: Fix use-after-free for aborted TMF sas_task
CVE-2022-48792 7.8 HIGH scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task
CVE-2022-48796 7.8 HIGH iommu: Fix potential use-after-free during probe
CVE-2022-48787 7.8 HIGH iwlwifi: fix use-after-free
CVE-2022-48786 7.8 HIGH vsock: remove vsock from connected table when connect is interrupted by a signal
CVE-2022-48847 7.8 HIGH watch_queue: Fix filter limit check
CVE-2022-48779 7.8 HIGH net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
CVE-2022-48821 7.8 HIGH misc: fastrpc: avoid double fput() on failed usercopy
CVE-2022-48801 7.8 HIGH iio: buffer: Fix file related error handling in IIO_BUFFER_GET_FD_IOCTL
CVE-2022-48822 7.8 HIGH usb: f_fs: Fix use-after-free for epfile

Showing top 20 of 98 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48775

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