vulnerability

Red Hat: CVE-2025-39761: kernel: wifi: ath12k: Decrement TID on RX peer frag setup error handling (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:C)
Published
Sep 11, 2025
Added
Oct 8, 2025
Modified
Oct 8, 2025

Description

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

wifi: ath12k: Decrement TID on RX peer frag setup error handling

Currently, TID is not decremented before peer cleanup, during error
handling path of ath12k_dp_rx_peer_frag_setup(). This could lead to
out-of-bounds access in peer->rx_tid[].

Hence, add a decrement operation for TID, before peer cleanup to
ensures proper cleanup and prevents out-of-bounds access issues when
the RX peer frag setup fails.

Found during code review. Compile tested only.

Solutions

redhat-upgrade-kernelredhat-upgrade-kernel-rt
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