CVE-2024-41055
mm: prevent derefencing NULL ptr in pfn_section_valid()
Severity Score
5.5
*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:
mm: prevent derefencing NULL ptr in pfn_section_valid()
Commit 5ec8e8ea8b77 ("mm/sparsemem: fix race in accessing
memory_section->usage") changed pfn_section_valid() to add a READ_ONCE()
call around "ms->usage" to fix a race with section_deactivate() where
ms->usage can be cleared. The READ_ONCE() call, by itself, is not enough
to prevent NULL pointer dereference. We need to check its value before
dereferencing it.
*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
- 2024-07-12 CVE Reserved
- 2024-07-29 CVE Published
- 2024-08-23 EPSS Updated
- 2024-09-11 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (14)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/90ad17575d26874287271127d43ef3c2af876cea | Vuln. Introduced | |
| https://git.kernel.org/stable/c/b448de2459b6d62a53892487ab18b7d823ff0529 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/68ed9e33324021e9d6b798e9db00ca3093d2012a | Vuln. Introduced | |
| https://git.kernel.org/stable/c/70064241f2229f7ba7b9599a98f68d9142e81a97 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/5ec8e8ea8b7783fab150cf86404fc38cb4db8800 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/3a01daace71b521563c38bbbf874e14c3e58adb7 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2024-41055 | 2024-09-11 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2300429 | 2024-09-11 |
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" | >= 5.10.210 < 5.10.222 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10.210 < 5.10.222" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.15.149 < 5.15.163 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15.149 < 5.15.163" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.1.76 < 6.1.100 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1.76 < 6.1.100" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.6.15 < 6.6.41 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.6.15 < 6.6.41" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.8 < 6.9.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.9.10" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.8 < 6.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.10" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.7.3 Search vendor "Linux" for product "Linux Kernel" and version "6.7.3" | en |
Affected
| ||||||