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CVE-2021-47071— uio_hv_generic: Fix a memory leak in error handling paths

EPSS 0.01% · P3
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I. Basic Information for CVE-2021-47071

Vulnerability Information
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Vulnerability Title
uio_hv_generic: Fix a memory leak in error handling paths
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix a memory leak in error handling paths If 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be updated and 'hv_uio_cleanup()' in the error handling path will not be able to free the corresponding buffer. In such a case, we need to free the buffer explicitly.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于存在内存泄漏问题。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux cdfa835c6e5e87d145f9f632b58843de97509f2b ~ cdd91637d4ef33e2be19a8e16e72e7d00c996d76 -
LinuxLinux 4.20 -

II. Public POCs for CVE-2021-47071

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III. Intelligence Information for CVE-2021-47071

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Same Patch Batch · Linux · 2024-03-01 · 13 CVEs total

CVE-2021-47081habanalabs/gaudi: Fix a potential use after free in gaudi_memset_device_memory
CVE-2021-47080RDMA/core: Prevent divide-by-zero error triggered by the user
CVE-2021-47078RDMA/rxe: Clear all QP fields if creation failed
CVE-2021-47079platform/x86: ideapad-laptop: fix a NULL pointer dereference
CVE-2021-47077scsi: qedf: Add pointer checks in qedf_update_link_speed()
CVE-2021-47075nvmet: fix memory leak in nvmet_alloc_ctrl()
CVE-2021-47076RDMA/rxe: Return CQE error if invalid lkey was supplied
CVE-2021-47074nvme-loop: fix memory leak in nvme_loop_create_ctrl()
CVE-2021-47072btrfs: fix removed dentries still existing after log is synced
CVE-2021-47073platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
CVE-2021-47069ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
CVE-2021-47070uio_hv_generic: Fix another memory leak in error handling paths

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47071

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