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CVE-2025-39761— wifi: ath12k: Decrement TID on RX peer frag setup error handling

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于RX peer frag设置错误处理中未减少TID，可能导致越界访问。

CVSS 8.8 · High EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1205.002 · Socket Filters

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux d889913205cf7ebda905b1e62c5867ed4e39f6c2< eb1e1526b82b8cf31f1ef9ca86a2647fb6cd89c6 affected
d889913205cf7ebda905b1e62c5867ed4e39f6c2< 7c3e99fd4a66a5ac9c7dd32db07359666efe0002 affected
d889913205cf7ebda905b1e62c5867ed4e39f6c2< a3b73c72c42348bf1555fd2b00f32f941324b242 affected
d889913205cf7ebda905b1e62c5867ed4e39f6c2< 9530d666f4376c294cdf4348c29fe3542fec980a affected
d889913205cf7ebda905b1e62c5867ed4e39f6c2< 7c0884fcd2ddde0544d2e77f297ae461e1f53f58 affected
6.3 affected
< 6.3 unaffected
6.6.103≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2025-39761

Vulnerability Information
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Vulnerability Title
wifi: ath12k: Decrement TID on RX peer frag setup error handling
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于RX peer frag设置错误处理中未减少TID，可能导致越界访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux d889913205cf7ebda905b1e62c5867ed4e39f6c2 ~ eb1e1526b82b8cf31f1ef9ca86a2647fb6cd89c6 -
Linux Linux 6.3 -

II. Public POCs for CVE-2025-39761

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III. Intelligence Information for CVE-2025-39761

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Same Patch Batch · Linux · 2025-09-11 · 54 CVEs total

CVE-2025-39758 9.8 CRITICAL RDMA/siw: Fix the sendmsg byte count in siw_tcp_sendpages
CVE-2025-39750 8.8 HIGH wifi: ath12k: Correct tid cleanup when tid setup fails
CVE-2025-39790 8.4 HIGH bus: mhi: host: Detect events pointing to unexpected TREs
CVE-2025-39779 7.8 HIGH btrfs: subpage: keep TOWRITE tag until folio is cleaned
CVE-2025-39785 7.8 HIGH drm/hisilicon/hibmc: fix irq_request()'s irq name variable is local
CVE-2025-39786 7.8 HIGH iio: adc: ad7173: fix channels index for syscalib_mode
CVE-2025-39740 7.8 HIGH drm/xe/migrate: prevent potential UAF
CVE-2025-39780 7.8 HIGH sched/ext: Fix invalid task state transitions on class switch
CVE-2025-39787 7.8 HIGH soc: qcom: mdt_loader: Ensure we don't read past the ELF header
CVE-2025-39791 7.8 HIGH dm: dm-crypt: Do not partially accept write BIOs with zoned targets
CVE-2025-39770 7.5 HIGH net: gso: Forbid IPv6 TSO with extensions on devices with only IPV6_CSUM
CVE-2025-39738 7.3 HIGH btrfs: do not allow relocation of partially dropped subvolumes
CVE-2025-39789 7.3 HIGH crypto: x86/aegis - Add missing error checks
CVE-2025-39776 7.0 HIGH mm/debug_vm_pgtable: clear page table entries at destroy_args()
CVE-2025-39788 scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE
CVE-2025-39784 PCI: Fix link speed calculation on retrain failure
CVE-2025-39772 drm/hisilicon/hibmc: fix the hibmc loaded failed bug
CVE-2025-39771 regulator: pca9450: Use devm_register_sys_off_handler
CVE-2025-39768 net/mlx5: HWS, fix complex rules rehash error flow
CVE-2025-39766 net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit

Showing top 20 of 54 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39761

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