CVE-2021-47073
platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
Severity Score
2.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
init_dell_smbios_wmi() only registers the dell_smbios_wmi_driver on systems
where the Dell WMI interface is supported. While exit_dell_smbios_wmi()
unregisters it unconditionally, this leads to the following oops:
[ 175.722921] ------------[ cut here ]------------
[ 175.722925] Unexpected driver unregister!
[ 175.722939] WARNING: CPU: 1 PID: 3630 at drivers/base/driver.c:194 driver_unregister+0x38/0x40
...
[ 175.723089] Call Trace:
[ 175.723094] cleanup_module+0x5/0xedd [dell_smbios]
...
[ 175.723148] ---[ end trace 064c34e1ad49509d ]---
Make the unregister happen on the same condition the register happens
to fix this.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2024-02-29 CVE Reserved
- 2024-03-01 CVE Published
- 2024-03-02 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-99: Improper Control of Resource Identifiers ('Resource Injection')
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/1a258e670434f404a4500b65ba1afea2c2b29bba | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2021-47073 | 2024-07-08 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2267518 | 2024-07-08 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.15 < 4.19.192 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 4.19.192" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.15 < 5.4.122 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 5.4.122" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.15 < 5.10.40 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 5.10.40" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.15 < 5.12.7 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 5.12.7" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.15 < 5.13 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 5.13" | en |
Affected
| ||||||