CVE-2024-43879

wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he()

MEDIUM
5.5
CVSS Score
Published: August 21, 2024 at 12:06 AM UTC
Updated: October 15, 2026 at 01:18 AM UTC
2 products affected across 2 vendorsLinux KernelSIMATIC S7-1500 TM MFP

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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: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he() Currently NL80211_RATE_INFO_HE_RU_ALLOC_2x996 is not handled in cfg80211_calculate_bitrate_he(), leading to below warning: kernel: invalid HE MCS: bw:6, ru:6 kernel: WARNING: CPU: 0 PID: 2312 at net/wireless/util.c:1501 cfg80211_calculate_bitrate_he+0x22b/0x270 [cfg80211] Fix it by handling 2x996 RU allocation in the same way as 160 MHz bandwidth.

Affected

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

All versions4.19 ≤ v < 4.19.3204.20 ≤ v < 5.4.2825.11 ≤ v < 5.15.1655.16 ≤ v < 6.1.1035.5 ≤ v < 5.10.2246.2 ≤ v < 6.6.446.7 ≤ v < 6.10.34.19c4cbaf7973a794839af080f13748335976cf3f3f
Vendor states this is fixed in 16ad67e73309db0c20cc2a651992bd01c05e6b27 (fixed)
Vendor states this is fixed in 19eaf4f2f5a981f55a265242ada2bf92b0c742dd (fixed)
Vendor states this is fixed in 2e201b3d162c6c49417c438ffb30b58c9f85769f (fixed)
Vendor states this is fixed in 45d20a1c54be4f3173862c7b950d4468447814c9 (fixed)
Vendor states this is fixed in 576c64622649f3ec07e97bac8fec8b8a2ef4d086 (fixed)
Vendor states this is fixed in 67b5f1054197e4f5553047759c15c1d67d4c8142 (fixed)
Vendor states this is fixed in b289ebb0516526cb4abae081b7ec29fd4fa1209d (fixed)
Vendor states this is fixed in bcbd771cd5d68c0c52567556097d75f9fc4e7cd6 (fixed)
Vendor states this is fixed in 4.19 (unaffected)
Vendor states this is fixed in 4.19.320 (unaffected)
Vendor states this is fixed in 5.10.224 (unaffected)
Vendor states this is fixed in 5.15.165 (unaffected)
Vendor states this is fixed in 5.4.282 (unaffected)
Vendor states this is fixed in 6.1.103 (unaffected)
Vendor states this is fixed in 6.10.3 (unaffected)
Vendor states this is fixed in 6.11 (unaffected)
Vendor states this is fixed in 6.6.44 (unaffected)

References (12)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/16ad67e73309db0c20cc2a651992bd01c05e6b27
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/19eaf4f2f5a981f55a265242ada2bf92b0c742dd
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2e201b3d162c6c49417c438ffb30b58c9f85769f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/45d20a1c54be4f3173862c7b950d4468447814c9
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/576c64622649f3ec07e97bac8fec8b8a2ef4d086
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/67b5f1054197e4f5553047759c15c1d67d4c8142
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b289ebb0516526cb4abae081b7ec29fd4fa1209d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/bcbd771cd5d68c0c52567556097d75f9fc4e7cd6

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
NVD-CWE-noinfo

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