NULL Pointer Dereference Affecting linux-aws-6.12 package, versions <6.12.80-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LINUXAWS612-15991739
  • published12 Apr 2026
  • disclosed19 Aug 2025

Introduced: 19 Aug 2025

CVE-2025-38605  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Chainguard linux-aws-6.12 to version 6.12.80-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-aws-6.12 package and not the linux-aws-6.12 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath12k: Pass ab pointer directly to ath12k_dp_tx_get_encap_type()

In ath12k_dp_tx_get_encap_type(), the arvif parameter is only used to retrieve the ab pointer. In vdev delete sequence the arvif->ar could become NULL and that would trigger kernel panic. Since the caller ath12k_dp_tx() already has a valid ab pointer, pass it directly to avoid panic and unnecessary dereferencing.

PC points to "ath12k_dp_tx+0x228/0x988 [ath12k]" LR points to "ath12k_dp_tx+0xc8/0x988 [ath12k]". The Backtrace obtained is as follows: ath12k_dp_tx+0x228/0x988 [ath12k] ath12k_mac_tx_check_max_limit+0x608/0x920 [ath12k] ieee80211_process_measurement_req+0x320/0x348 [mac80211] ieee80211_tx_dequeue+0x9ac/0x1518 [mac80211] ieee80211_tx_dequeue+0xb14/0x1518 [mac80211] ieee80211_tx_prepare_skb+0x224/0x254 [mac80211] ieee80211_xmit+0xec/0x100 [mac80211] __ieee80211_subif_start_xmit+0xc50/0xf40 [mac80211] ieee80211_subif_start_xmit+0x2e8/0x308 [mac80211] netdev_start_xmit+0x150/0x18c dev_hard_start_xmit+0x74/0xc0

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1

CVSS Base Scores

version 3.1