CVE-2026-80653
Received Received - Intake

Race Condition in Linux Kernel's Hisi SAS Driver

Publication date: 2026-08-28

Last updated on: 2026-08-28

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: scsi: hisi_sas: Add slave_destroy interface for v3 hw WARNING is triggered when executing link reset of remote PHY and rmmod SAS driver simultaneously. Following is the WARNING log: WARNING: CPU: 61 PID: 21818 at drivers/base/core.c:1347 __device_links_no_driver+0xb4/0xc0 Call trace: __device_links_no_driver+0xb4/0xc0 device_links_driver_cleanup+0xb0/0xfc __device_release_driver+0x198/0x23c device_release_driver+0x38/0x50 bus_remove_device+0x130/0x140 device_del+0x184/0x434 __scsi_remove_device+0x118/0x150 scsi_remove_target+0x1bc/0x240 sas_rphy_remove+0x90/0x94 sas_rphy_delete+0x24/0x3c sas_destruct_devices+0x64/0xa0 [libsas] sas_revalidate_domain+0xe4/0x150 [libsas] process_one_work+0x1e0/0x46c worker_thread+0x15c/0x464 kthread+0x160/0x170 ret_from_fork+0x10/0x20 ---[ end trace 71e059eb58f85d4a ]--- During SAS phy up, link->status is set to DL_STATE_AVAILABLE in device_links_driver_bound, then this setting influences __device_links_no_driver() before driver rmmod and caused WARNING. Add the slave_destroy interface to make sure link is removed after flush workque.

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Meta Information

Published
2026-08-28
Last Modified
2026-08-28
Generated
2026-08-28
AI Q&A
2026-08-28
EPSS Evaluated
N/A
NVD
CVE-2026-80653
EUVD
EUVD-2026-67529

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel involves a race condition where executing a link reset of a remote PHY and removing the SAS driver simultaneously triggers a WARNING. The issue occurs because the link status is set to DL_STATE_AVAILABLE during SAS PHY initialization, which affects the cleanup process before the driver is removed, leading to a kernel warning.

Detection Guidance

This vulnerability is specific to the Linux kernel's hisi_sas driver and manifests as a WARNING log during simultaneous link reset and SAS driver removal. Detection involves monitoring kernel logs for the WARNING message shown in the CVE description. Check system logs with commands like 'dmesg | grep -i warning' or 'journalctl -k | grep -i warning'.

Impact Analysis

This vulnerability could cause system instability or crashes when the SAS driver is removed while a link reset is in progress. It may lead to kernel warnings, potential data corruption, or unexpected system behavior in systems using SAS devices.

Mitigation Strategies

Apply the kernel patch that resolves this issue by adding the slave_destroy interface. Update to a kernel version that includes the fix. Avoid simultaneous link reset and SAS driver removal operations to prevent the WARNING condition.

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