CVE-2025-37944 [High] | Out-of-bounds Write in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Fix invalid entry fetch in ath12k_dp_mon_srng_process Currently, ath12k_dp_mon_srng_process uses ath12k_hal_srng_src_get_next_entry to fetch the next entry from the destination ring. This is incorrect because ath12k_hal_srng_src_get_next_entry is intended for source rings, not destination rings. This leads to invalid entry fetches, causing potential data corruption or crashes due to accessing incorrect memory locations. This happens because the source ring and destination ring have different handling mechanisms and using the wrong function results in incorrect pointer arithmetic and ring management. To fix this issue, replace the call to ath12k_hal_srng_src_get_next_entry with ath12k_hal_srng_dst_get_next_entry in ath12k_dp_mon_srng_process. This ensures that the correct function is used for fetching entries from the destination ring, preventing invalid memory accesses. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-05-21	—	0.02%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-05-21

—

0.02%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

5.9

[email protected]

OS Trackers for CVE-2025-37944

vendor	priority	summary	link
`debian`	unimportant	CVE-2025-37944 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2025-37944
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2025-37944
`suse`	medium	—	https://www.suse.com/security/cve/CVE-2025-37944/
`ubuntu`	medium	CVE-2025-37944 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1551 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1145, ignored 168, released 130, needed 77, not-affected 28, needs-triage 2, pending 1.	https://ubuntu.com/security/CVE-2025-37944

Affected software / configurations for CVE-2025-37944

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 6.3, < 6.6.88	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.7, < 6.12.25	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.13, < 6.13.12	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.14, < 6.14.4	cpe:2.3:o:linux:linux_kernel::::::::

References for CVE-2025-37944

URL	Tags
https://git.kernel.org/stable/c/298f0aea5cb32b5038f991f5db201a0fcbb9a31b	Patch
https://git.kernel.org/stable/c/2c512f2eadabb1e80816116894ffaf7d802a944e	Patch
https://git.kernel.org/stable/c/63fdc4509bcf483e79548de6bc08bf3c8e504bb3	Patch
https://git.kernel.org/stable/c/ab7edf42ce800eb34d2f73dd7271b826661a06a5	Patch
https://git.kernel.org/stable/c/b6a3b2b2cead103089d3bb7a57d8209bdfa5399d	Patch

URL

CVE-2025-37944 | wifi: ath12k: Fix invalid entry fetch in ath12k_dp_mon_srng_process

Exploit prediction scoring system (EPSS) score for CVE-2025-37944

Common vulnerability scoring system (CVSS) metrics for CVE-2025-37944

Weakness enumeration for CVE-2025-37944

OS Trackers for CVE-2025-37944

Affected software / configurations for CVE-2025-37944

References for CVE-2025-37944