Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-47074— nvme-loop: fix memory leak in nvme_loop_create_ctrl()

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nvme_loop_create_ctrl()中存在内存泄漏问题。

AI Predicted 3.7 Difficulty: Trivial EPSS 0.24% · P13

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 3a85a5de29ea779634ddfd768059e06196687aba< 9c980795ccd77e8abec33dd6fe28dfe1c4083e65 affected
3a85a5de29ea779634ddfd768059e06196687aba< 551ba08d4b7eb26f75758cdb9f15105b276517ad affected
3a85a5de29ea779634ddfd768059e06196687aba< 03504e3b54cc8118cc26c064e60a0b00c2308708 affected
4.8 affected
< 4.8 unaffected
5.10.40≤ 5.10.* unaffected
5.12.7≤ 5.12.* unaffected
5.13≤ * unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-47074

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
nvme-loop: fix memory leak in nvme_loop_create_ctrl()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nvme-loop: fix memory leak in nvme_loop_create_ctrl() When creating loop ctrl in nvme_loop_create_ctrl(), if nvme_init_ctrl() fails, the loop ctrl should be freed before jumping to the "out" label.
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nvme_loop_create_ctrl()中存在内存泄漏问题。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 3a85a5de29ea779634ddfd768059e06196687aba ~ 9c980795ccd77e8abec33dd6fe28dfe1c4083e65 -
Linux Linux 4.8 -

II. Public POCs for CVE-2021-47074

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-47074

请登录查看更多情报信息。

Other References for CVE-2021-47074 (3)

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

CVE-2021-47081 7.8 HIGH habanalabs/gaudi: Fix a potential use after free in gaudi_memset_device_memory
CVE-2021-47078 7.8 HIGH RDMA/rxe: Clear all QP fields if creation failed
CVE-2021-47069 7.8 HIGH ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
CVE-2021-47080 RDMA/core: Prevent divide-by-zero error triggered by the user
CVE-2021-47079 platform/x86: ideapad-laptop: fix a NULL pointer dereference
CVE-2021-47077 scsi: qedf: Add pointer checks in qedf_update_link_speed()
CVE-2021-47075 nvmet: fix memory leak in nvmet_alloc_ctrl()
CVE-2021-47076 RDMA/rxe: Return CQE error if invalid lkey was supplied
CVE-2021-47072 btrfs: fix removed dentries still existing after log is synced
CVE-2021-47073 platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
CVE-2021-47071 uio_hv_generic: Fix a memory leak in error handling paths
CVE-2021-47070 uio_hv_generic: Fix another memory leak in error handling paths

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47074

No comments yet

Leave a comment