CVE-2023-53277

wifi: iwl3945: Add missing check for create_singlethread_workqueue

MEDIUM
5.5
CVSS Score
Published: September 16, 2025 at 08:11 AM UTC
Updated: June 17, 2026 at 06:44 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwl3945: Add missing check for create_singlethread_workqueue Add the check for the return value of the create_singlethread_workqueue in order to avoid NULL pointer dereference.

Affected

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

2.6.24 ≤ v < 4.19.2762.6.24 ≤ v < 5.10.1732.6.24 ≤ v < 5.15.992.6.24 ≤ v < 5.4.2352.6.24 ≤ v < 6.1.162.6.24 ≤ v < 6.2.32.6.24 ≤ v < 6.34.20 ≤ v < 5.4.2355.11 ≤ v < 5.15.995.16 ≤ v < 6.1.165.5 ≤ v < 5.10.1736.2 ≤ v < 6.2.32.6.24b481de9ca074528fe8c429604e2777db8b89806a
Vendor states this is fixed in 17e07d6587c55015956862ef3b101fd45fa49fbc (fixed)
Vendor states this is fixed in 1fdeb8b9f29dfd64805bb49475ac7566a3cb06cb (fixed)
Vendor states this is fixed in 2f80b3ff92514ebd227e5c55d3d1e480401b02b7 (fixed)
Vendor states this is fixed in 34f611204ae589bd5c494b10b41fb13436bd3c3f (fixed)
Vendor states this is fixed in 3ae2fc4de12686f3fe695824169c1272c9f798f7 (fixed)
Vendor states this is fixed in 505c74c4c0b1c5bcaa98a93b3087c268156070f1 (fixed)
Vendor states this is fixed in 7e594abc0424e4f8c2385f11aefeaadcfc507aa5 (fixed)
Vendor states this is fixed in 2.6.24 (unaffected)
Vendor states this is fixed in 4.19.276 (unaffected)
Vendor states this is fixed in 5.10.173 (unaffected)
Vendor states this is fixed in 5.15.99 (unaffected)
Vendor states this is fixed in 5.4.235 (unaffected)
Vendor states this is fixed in 6.1.16 (unaffected)
Vendor states this is fixed in 6.2.3 (unaffected)
Vendor states this is fixed in 6.3 (unaffected)

References (7)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/17e07d6587c55015956862ef3b101fd45fa49fbc
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1fdeb8b9f29dfd64805bb49475ac7566a3cb06cb
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2f80b3ff92514ebd227e5c55d3d1e480401b02b7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/34f611204ae589bd5c494b10b41fb13436bd3c3f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3ae2fc4de12686f3fe695824169c1272c9f798f7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/505c74c4c0b1c5bcaa98a93b3087c268156070f1
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7e594abc0424e4f8c2385f11aefeaadcfc507aa5

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUMCISA-ADP
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

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card