CVE-2025-39761

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

State: Published
Severity: 8.8 High
Published: Sep 11, 2025
Updated: Aug 5, 2026
Reserved: Apr 16, 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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before eb1e1526b82b8cf31f1ef9ca86a2647fb6cd89c6Affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 7c3e99fd4a66a5ac9c7dd32db07359666efe0002Affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before a3b73c72c42348bf1555fd2b00f32f941324b242Affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 9530d666f4376c294cdf4348c29fe3542fec980aAffected d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 7c0884fcd2ddde0544d2e77f297ae461e1f53f58Affected
LinuxLinux	6.3Affected before 6.3Not affected 6.6.103 through 6.6.Not affected 6.12.43 through 6.12.Not affected 6.15.11 through 6.15.Not affected 6.16.2 through 6.16.Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before eb1e1526b82b8cf31f1ef9ca86a2647fb6cd89c6Affected
d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 7c3e99fd4a66a5ac9c7dd32db07359666efe0002Affected
d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before a3b73c72c42348bf1555fd2b00f32f941324b242Affected
d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 9530d666f4376c294cdf4348c29fe3542fec980aAffected
d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 7c0884fcd2ddde0544d2e77f297ae461e1f53f58Affected

LinuxLinux

6.3Affected
before 6.3Not affected
6.6.103 through 6.6.*Not affected
6.12.43 through 6.12.*Not affected
6.15.11 through 6.15.*Not affected
6.16.2 through 6.16.*Not affected
6.17 and laterNot affected

References

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