CVE-2023-52593

wifi: wfx: fix possible NULL pointer dereference in wfx_set_mfp_ap()

MEDIUM
5.5
CVSS Score
Published: March 6, 2024 at 06:45 AM UTC
Updated: June 17, 2026 at 06:43 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wfx: fix possible NULL pointer dereference in wfx_set_mfp_ap() Since 'ieee80211_beacon_get()' can return NULL, 'wfx_set_mfp_ap()' should check the return value before examining skb data. So convert the latter to return an appropriate error code and propagate it to return from 'wfx_start_ap()' as well. Compile tested only.

Affected

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

v < 6.1.775.10 ≤ v < 6.1.775.10 ≤ v < 6.6.165.10 ≤ v < 6.7.45.10 ≤ v < 6.86.2 ≤ v < 6.6.166.7 ≤ v < 6.7.4268bceec1684932e194ae87877dcc73f534d921c5.10
Vendor states this is fixed in 3739121443f5114c6bcf6d841a5124deb006b878 (fixed)
Vendor states this is fixed in 574dcd3126aa2eed75437137843f254b1190dd03 (fixed)
Vendor states this is fixed in 9ab224744a47363f74ea29c6894c405e3bcf5132 (fixed)
Vendor states this is fixed in fe0a7776d4d19e613bb8dd80fe2d78ae49e8b49d (fixed)
Vendor states this is fixed in 5.10 (unaffected)
Vendor states this is fixed in 6.1.77 (unaffected)
Vendor states this is fixed in 6.6.16 (unaffected)
Vendor states this is fixed in 6.7.4 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3739121443f5114c6bcf6d841a5124deb006b878
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/574dcd3126aa2eed75437137843f254b1190dd03
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9ab224744a47363f74ea29c6894c405e3bcf5132
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fe0a7776d4d19e613bb8dd80fe2d78ae49e8b49d

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

StatusANALYZED
CWE
CWE-476

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