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CVE-2025-37791

ethtool: cmis_cdb: use correct rpl size in ethtool_cmis_module_poll()

MEDIUM
5.5
CVSS Score
Published: May 1, 2025 at 01:07 PM UTC
Updated: October 15, 2026 at 10:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: ethtool: cmis_cdb: use correct rpl size in ethtool_cmis_module_poll() rpl is passed as a pointer to ethtool_cmis_module_poll(), so the correct size of rpl is sizeof(*rpl) which should be just 1 byte. Using the pointer size instead can cause stack corruption: Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ethtool_cmis_wait_for_cond+0xf4/0x100 CPU: 72 UID: 0 PID: 4440 Comm: kworker/72:2 Kdump: loaded Tainted: G OE 6.11.0 #24 Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE Hardware name: Dell Inc. PowerEdge R760/04GWWM, BIOS 1.6.6 09/20/2023 Workqueue: events module_flash_fw_work Call Trace: <TASK> panic+0x339/0x360 ? ethtool_cmis_wait_for_cond+0xf4/0x100 ? __pfx_status_success+0x10/0x10 ? __pfx_status_fail+0x10/0x10 __stack_chk_fail+0x10/0x10 ethtool_cmis_wait_for_cond+0xf4/0x100 ethtool_cmis_cdb_execute_cmd+0x1fc/0x330 ? __pfx_status_fail+0x10/0x10 cmis_cdb_module_features_get+0x6d/0xd0 ethtool_cmis_cdb_init+0x8a/0xd0 ethtool_cmis_fw_update+0x46/0x1d0 module_flash_fw_work+0x17/0xa0 process_one_work+0x179/0x390 worker_thread+0x239/0x340 ? __pfx_worker_thread+0x10/0x10 kthread+0xcc/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2d/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>

Affected

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

Linux Kernel· Linux
95%
6.11 ≤ v < 6.12.256.13 ≤ v < 6.14.46.156.15 rc16.15 rc2a39c84d796254e6b1662ca0c46dbc313379e9291
Vendor states this is fixed in 61765e1b417a23371c3735e3cddf4ad9354ed2e9 (fixed)
Vendor states this is fixed in 7eb0a0072f966bb0b01d8b7d529d9743a7187bd1 (fixed)
Vendor states this is fixed in f3fdd4fba16c74697d8bc730b82fb7c1eff7fab3 (fixed)
Vendor states this is fixed in 6.11 (unaffected)
Vendor states this is fixed in 6.12.25 (unaffected)
Vendor states this is fixed in 6.14.4 (unaffected)
Vendor states this is fixed in 6.15 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/61765e1b417a23371c3735e3cddf4ad9354ed2e9
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7eb0a0072f966bb0b01d8b7d529d9743a7187bd1
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f3fdd4fba16c74697d8bc730b82fb7c1eff7fab3

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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