// For flags

CVE-2023-52646

aio: fix mremap after fork null-deref

Severity Score

5.5
*CVSS v3

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: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced
a null-deref if mremap is called on an old aio mapping after fork as
mm->ioctx_table will be set to NULL. [jmoyer@redhat.com: fix 80 column issue]

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: aio: corrige mremap después de la bifurcación null-deref Commit e4a0d3e720e7 ("aio: Make it posible reasignar el anillo aio") introdujo un null-deref si se llama a mremap en un mapeo aio antiguo después de la bifurcación como mm->ioctx_table se establecerá en NULL. [jmoyer@redhat.com: soluciona el problema de 80 columnas]

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced a null-deref if mremap is called on an old aio mapping after fork as mm->ioctx_table will be set to NULL. [jmoyer@redhat.com: fix 80 column issue]

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-03-06 CVE Reserved
  • 2024-04-26 CVE Published
  • 2024-12-19 CVE Updated
  • 2025-03-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
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"
 >= 3.19 < 4.14.306
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.14.306"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.19 < 4.19.273
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.19.273"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.19 < 5.4.232
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 5.4.232"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.19 < 5.10.169
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 5.10.169"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.19 < 5.15.95
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 5.15.95"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.19 < 6.1.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 6.1.13"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.19 < 6.2
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 6.2"
en
Affected