CVE-2026-74411

The CVE affects the Linux kernel with the wifi driver rtw89 (rtw89_core). The vulnerability arises in the 6 GHz scan path where the 6GHz channel-list scan loop uses an incorrect data type for the scan index, leading to an infinite/long loop and a soft lockup (CPU stuck for ~26s) during wifi scans...

CVE-2026-74411 wifi: rtw89: Correct data type for scan index to avoid infinite loop

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: Correct data type for scan index to avoid infinite loop A kernel soft lockup was observed during Wi-Fi scanning on the 6GHz band. The CPU becomes stuck in rtw89hwscanaddchanax for over 20 seconds, leading to a system...

CVE-2026-74410

The CVE concerns the Linux kernel wireless driver stack for the rtw88 PCI path. A new_len calculation in rtw_pci_rx_napi() can exceed the pre-allocated DMA receive buffer when assembling data from firmware RX descriptors: new_len = pkt_len (14-bit, up to 16383) + pkt_offset (drv_info_sz + shift, ...

CVE-2026-74410 wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer In rtwpcirxnapi, newlen is computed as the sum of pktlen 14-bit descriptor field, max 16383 and pktoffset drvinfosz + shift, both firmware-controlled. The...

EUVD-2026-59558

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: Correct data type for scan index to avoid infinite loop A kernel soft lockup was observed during Wi-Fi scanning on the 6GHz band. The CPU becomes stuck in rtw89hwscanaddchanax for over 20 seconds, leading to a system...

CVE-2026-74410 wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer In rtwpcirxnapi, newlen is computed as the sum of pktlen 14-bit descriptor field, max 16383 and pktoffset drvinfosz + shift, both firmware-controlled. The...

CVE-2026-74411 wifi: rtw89: Correct data type for scan index to avoid infinite loop

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: Correct data type for scan index to avoid infinite loop A kernel soft lockup was observed during Wi-Fi scanning on the 6GHz band. The CPU becomes stuck in rtw89hwscanaddchanax for over 20 seconds, leading to a system...

CVE-2026-74410

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer In rtwpcirxnapi, newlen is computed as the sum of pktlen 14-bit descriptor field, max 16383 and pktoffset drvinfosz + shift, both firmware-controlled. The...

CVE-2026-74411

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: Correct data type for scan index to avoid infinite loop A kernel soft lockup was observed during Wi-Fi scanning on the 6GHz band. The CPU becomes stuck in rtw89hwscanaddchanax for over 20 seconds, leading to a system...

CVE-2026-74409 wifi: rtw89: add bounds check on firmware mac_id in link lookup

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: add bounds check on firmware macid in link lookup The macid field in RX descriptors is 8 bits wide 0-255, but assoclinkonmacid has only RTW89MAXMACIDNUM 128 entries. While the driver currently assigns macid values...

CVE-2026-74409

Summary : The CVE-2026-74409 issue resides in the Linux kernel wifi driver for RTW89. An 8‑bit mac_id in RX descriptors (0–255) can index into assoc_link_on_macid[] which has only 128 entries (RTW89_MAX_MAC_ID_NUM). Firmware-supplied mac_id values are not validated before use as an array index, a...

EUVD-2026-59556

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: add bounds check on firmware macid in link lookup The macid field in RX descriptors is 8 bits wide 0-255, but assoclinkonmacid has only RTW89MAXMACIDNUM 128 entries. While the driver currently assigns macid values...

CVE-2026-74409

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: add bounds check on firmware macid in link lookup The macid field in RX descriptors is 8 bits wide 0-255, but assoclinkonmacid has only RTW89MAXMACIDNUM 128 entries. While the driver currently assigns macid values...

CVE-2026-74409 wifi: rtw89: add bounds check on firmware mac_id in link lookup

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: add bounds check on firmware macid in link lookup The macid field in RX descriptors is 8 bits wide 0-255, but assoclinkonmacid has only RTW89MAXMACIDNUM 128 entries. While the driver currently assigns macid values...

CVE-2026-74408 wifi: ath9k: fix OOB access from firmware tx status queue ID

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: fix OOB access from firmware tx status queue ID athtxedmatasklet accesses sc-tx.txqts.qid where ts.qid is a 4-bit hardware field 0-15, but the txq array only has ATH9KNUMTXQUEUES 10 entries. A qid = 10 causes an OOB...

EUVD-2026-59554

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: cancel SSR work items during PCI shutdown A reboot can crash the kernel if it overlaps with WLAN firmware crash recovery SSR. The crash is a NULL pointer dereference in the MHI teardown path while freeing DMA-backed...

CVE-2026-74408

The Linux kernel WiFi driver ath9k has a vulnerability (CVE-2026-74408) where ath_tx_edma_tasklet() accesses sc->tx.txq[ts.qid] with ts.qid being a 4-bit field (0-15) while the txq array supports only ATH9K_NUM_TX_QUEUES (10). A qid of 10 or higher causes an out-of-bounds access. The documente...

EUVD-2026-59555

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: fix OOB access from firmware tx status queue ID athtxedmatasklet accesses sc-tx.txqts.qid where ts.qid is a 4-bit hardware field 0-15, but the txq array only has ATH9KNUMTXQUEUES 10 entries. A qid = 10 causes an OOB...

CVE-2026-74407 wifi: ath11k: cancel SSR work items during PCI shutdown

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: cancel SSR work items during PCI shutdown A reboot can crash the kernel if it overlaps with WLAN firmware crash recovery SSR. The crash is a NULL pointer dereference in the MHI teardown path while freeing DMA-backed...

CVE-2026-74408 wifi: ath9k: fix OOB access from firmware tx status queue ID

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: fix OOB access from firmware tx status queue ID athtxedmatasklet accesses sc-tx.txqts.qid where ts.qid is a 4-bit hardware field 0-15, but the txq array only has ATH9KNUMTXQUEUES 10 entries. A qid = 10 causes an OOB...