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CVE-2024-43847

wifi: ath12k: fix invalid memory access while processing fragmented packets

HIGH
8.8
CVSS Score
Published: August 17, 2024 at 09:22 AM UTC
Updated: August 5, 2026 at 12:04 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.8
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix invalid memory access while processing fragmented packets The monitor ring and the reo reinject ring share the same ring mask index. When the driver receives an interrupt for the reo reinject ring, the monitor ring is also processed, leading to invalid memory access. Since monitor support is not yet enabled in ath12k, the ring mask for the monitor ring should be removed. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00209-QCAHKSWPL_SILICONZ-1

Affected

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

Linux Kernel· Linux
95%
6.3 ≤ v < 6.10.36.3 ≤ v < 6.116.3 ≤ v < 6.6.446.7 ≤ v < 6.10.36.3d889913205cf7ebda905b1e62c5867ed4e39f6c2
Vendor states this is fixed in 073f9f249eecd64ab9d59c91c4a23cfdcc02afe4 (fixed)
Vendor states this is fixed in 36fc66a7d9ca3e5c6eac25362cac63f83df8bed6 (fixed)
Vendor states this is fixed in 8126f82dab7bd8b2e04799342b19fff0a1fd8575 (fixed)
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 6.3 (unaffected)
Vendor states this is fixed in 6.6.44 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/073f9f249eecd64ab9d59c91c4a23cfdcc02afe4
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/36fc66a7d9ca3e5c6eac25362cac63f83df8bed6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8126f82dab7bd8b2e04799342b19fff0a1fd8575

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

8.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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