CVE-2023-52467

mfd: syscon: Fix null pointer dereference in of_syscon_register()

MEDIUM
5.5
CVSS Score
Published: February 25, 2024 at 08:16 AM UTC
Updated: June 17, 2026 at 06:42 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: mfd: syscon: Fix null pointer dereference in of_syscon_register() kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.11.0 ≤ v < 5.15.1485.16.0 ≤ v < 6.1.755.9 ≤ v < 5.10.2095.9 ≤ v < 5.15.1485.9 ≤ v < 6.1.755.9 ≤ v < 6.6.145.9 ≤ v < 6.7.25.9 ≤ v < 6.85.9.0 ≤ v < 5.10.2096.2.0 ≤ v < 6.6.146.7.0 ≤ v < 6.7.25.9e15d7f2b81d2e7d93115d46fa931b366c1cdebc2
Vendor states this is fixed in 3ef1130deee98997275904d9bfc37af75e1e906c (fixed)
Vendor states this is fixed in 41673c66b3d0c09915698fec5c13b24336f18dd1 (fixed)
Vendor states this is fixed in 527e8c5f3d00299822612c495d5adf1f8f43c001 (fixed)
Vendor states this is fixed in 7f2c410ac470959b88e03dadd94b7a0b71df7973 (fixed)
Vendor states this is fixed in 927626a2073887ee30ba00633260d4d203f8e875 (fixed)
Vendor states this is fixed in c3e3a2144bf50877551138ffce9f7aa6ddfe385b (fixed)
Vendor states this is fixed in 5.10.209 (unaffected)
Vendor states this is fixed in 5.15.148 (unaffected)
Vendor states this is fixed in 5.9 (unaffected)
Vendor states this is fixed in 6.1.75 (unaffected)
Vendor states this is fixed in 6.6.14 (unaffected)
Vendor states this is fixed in 6.7.2 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (7)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3ef1130deee98997275904d9bfc37af75e1e906c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/41673c66b3d0c09915698fec5c13b24336f18dd1
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/527e8c5f3d00299822612c495d5adf1f8f43c001
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7f2c410ac470959b88e03dadd94b7a0b71df7973
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/927626a2073887ee30ba00633260d4d203f8e875
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c3e3a2144bf50877551138ffce9f7aa6ddfe385b
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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