🛡️ UBUNTU-CVE-2021-47239
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: fix possible use-after-free in smsc75xx_bind The commit 46a8b29c6306 ("net: usb: fix memory leak in smsc75xx_bind") fails to clean up the work scheduled in smsc75xx_reset-> smsc75xx_set_multicast, which leads to use-after-free if the work is scheduled to start after the deallocation. In addition, this patch also removes a dangling pointer - dev->data[0]. This patch calls cancel_work_sync to cancel the scheduled work and set the dangling pointer to NULL.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-05-21
Updated 2026-06-15
Modified 2026-05-20
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 5.4.0-81.91
linux-allwinner-5.19
linux-aws 5.4.0-1055.58
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4 5.4.0-1055.58~18.04.1
linux-aws-5.8
linux-aws-6.2
linux-aws-fips 4.15.0-2053.55
linux-aws-hwe 4.15.0-1111.118~16.04.1
linux-azure 5.4.0-1056.58
linux-azure-4.15 4.15.0-1123.136
linux-azure-5.11
linux-azure-5.13
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4 5.4.0-1056.58~18.04.1
linux-azure-5.8
linux-azure-6.2
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-fips 4.15.0-2035.39
linux-bluefield 5.4.0-1019.22
linux-fips 5.4.0-1032.37
linux-gcp 5.4.0-1051.55
linux-gcp-4.15 4.15.0-1108.122
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4 5.4.0-1051.55~18.04.1
linux-gcp-5.8
linux-gcp-6.2
linux-gcp-fips 4.15.0-2018.20
linux-gke
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 5.4.0-1022.23
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.19
linux-hwe-5.4 5.4.0-81.91~18.04.1
linux-hwe-5.8
linux-hwe-6.2
linux-hwe-edge
linux-intel-5.13
linux-intel-iot-realtime
linux-kvm 5.4.0-1045.47
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.2
linux-nvidia-6.2
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oracle 5.4.0-1053.57
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.3
linux-oracle-5.4 5.4.0-1053.57~18.04.1
linux-oracle-5.8
linux-raspi 5.4.0-1042.46
linux-raspi-5.4 5.4.0-1042.46~18.04.3
linux-raspi-realtime
linux-raspi2
linux-realtime
linux-riscv
linux-riscv-5.11
linux-riscv-5.19
linux-riscv-5.8
linux-starfive-5.19
linux-starfive-6.2

References

Similar Threats

Free Vulnerability Check

Is your WordPress site affected?

BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against known CVE records.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.