scsi: aic94xx: fix use-after-free in device removal path
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/278455a82245a572aeb218a6212a416a98e418de
- https://git.kernel.org/stable/c/751c19635c2bfaaf2836a533caa3663633066dcf
- https://git.kernel.org/stable/c/a41dc180b6e1229ae49ca290ae14d82101c148c3
- https://git.kernel.org/stable/c/b3e655e52b98a1d3df41c8e42035711e083099f8
- https://git.kernel.org/stable/c/c8f6f88cd1df35155258285c4f43268b361819df
- https://git.kernel.org/stable/c/e354793a7ab9bb0934ea699a9d57bcd1b48fc27b
- https://git.kernel.org/stable/c/f6ab594672d4cba08540919a4e6be2e202b60007
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71075.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-71075