CVE-2023-52594

wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus()

HIGH

7.8

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

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus() Fix an array-index-out-of-bounds read in ath9k_htc_txstatus(). The bug occurs when txs->cnt, data from a URB provided by a USB device, is bigger than the size of the array txs->txstatus, which is HTC_MAX_TX_STATUS. WARN_ON() already checks it, but there is no bug handling code after the check. Make the function return if that is the case. Found by a modified version of syzkaller. UBSAN: array-index-out-of-bounds in htc_drv_txrx.c index 13 is out of range for type '__wmi_event_txstatus [12]' Call Trace: ath9k_htc_txstatus ath9k_wmi_event_tasklet tasklet_action_common __do_softirq irq_exit_rxu sysvec_apic_timer_interrupt

Affected

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

Linux Kernel · Linux

95%

v < 4.19.3073.0 ≤ v < 4.19.3073.0 ≤ v < 5.10.2103.0 ≤ v < 5.15.1493.0 ≤ v < 5.4.2693.0 ≤ v < 6.1.773.0 ≤ v < 6.6.163.0 ≤ v < 6.7.43.0 ≤ v < 6.84.20 ≤ v < 5.4.2695.11 ≤ v < 5.15.1495.16 ≤ v < 6.1.775.5 ≤ v < 5.10.2106.2 ≤ v < 6.6.166.7 ≤ v < 6.7.427876a29de221186c9d5883e5fe5f6da18ef9a453.0

Vendor states this is fixed in 25c6f49ef59b7a9b80a3f7ab9e95268a1b01a234 (fixed)

Vendor states this is fixed in 2adc886244dff60f948497b59affb6c6ebb3c348 (fixed)

Vendor states this is fixed in 84770a996ad8d7f121ff2fb5a8d149aad52d64c1 (fixed)

Vendor states this is fixed in 9003fa9a0198ce004b30738766c67eb7373479c9 (fixed)

Vendor states this is fixed in be609c7002dd4504b15b069cb7582f4c778548d1 (fixed)

Vendor states this is fixed in e4f4bac7d3b64eb75f70cd3345712de6f68a215d (fixed)

Vendor states this is fixed in f11f0fd1ad6c11ae7856d4325fe9d05059767225 (fixed)

Vendor states this is fixed in f44f073c78112ff921a220d01b86d09f2ace59bc (fixed)

Vendor states this is fixed in 3.0 (unaffected)

Vendor states this is fixed in 4.19.307 (unaffected)

Vendor states this is fixed in 5.10.210 (unaffected)

Vendor states this is fixed in 5.15.149 (unaffected)