CVE-2025-71075
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-13

Last updated on: 2026-03-25

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: scsi: aic94xx: fix use-after-free in device removal path The asd_pci_remove() function fails to synchronize with pending tasklets before freeing the asd_ha structure, leading to a potential use-after-free vulnerability. When a device removal is triggered (via hot-unplug or module unload), race condition can occur. The fix adds tasklet_kill() before freeing the asd_ha structure, ensuring all scheduled tasklets complete before cleanup proceeds.
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Meta Information
Published
2026-01-13
Last Modified
2026-03-25
Generated
2026-06-16
AI Q&A
2026-01-14
EPSS Evaluated
2026-06-14
NVD
CVE-2025-71075
Affected Vendors & Products
Showing 15 associated CPEs
Vendor Product Version / Range
linux linux_kernel 2.6.19
linux linux_kernel From 5.11 (inc) to 5.15.198 (exc)
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel From 5.16 (inc) to 6.1.160 (exc)
linux linux_kernel From 6.2 (inc) to 6.6.120 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.64 (exc)
linux linux_kernel From 6.13 (inc) to 6.18.3 (exc)
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel From 2.6.19.1 (inc) to 5.10.248 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
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Executive Summary

This vulnerability is a use-after-free issue in the Linux kernel's scsi aic94xx driver. Specifically, the asd_pci_remove() function does not properly synchronize with pending tasklets before freeing the asd_ha structure during device removal. This can cause a race condition where the system may access memory that has already been freed, potentially leading to instability or crashes. The fix involves adding tasklet_kill() to ensure all scheduled tasklets complete before the structure is freed.

Impact Analysis

This vulnerability can lead to system instability, crashes, or unpredictable behavior when a device using the affected driver is removed (such as during hot-unplug or module unload). Exploiting the use-after-free condition could potentially allow an attacker to cause denial of service or execute arbitrary code, depending on the context and system configuration.

Mitigation Strategies

To mitigate this vulnerability, update the Linux kernel to a version that includes the fix for the use-after-free issue in the aic94xx driver. The fix involves adding tasklet_kill() before freeing the asd_ha structure to ensure proper synchronization during device removal. Avoid hot-unplugging devices or unloading the module until the kernel is updated.

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