scsi: aic94xx: fix use-after-free in device removal path

Summary

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.

Timeline

1. Jan 13, 2026, 3:31 PM UTCCVE published
2. Jun 10, 2026, 8:41 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: total

3. Oct 19, 2026, 6:15 PM UTCRecord last updated

Affected versions

• Linux Linux

  From 2908d778ab3e244900c310974e1fc1c69066e450 · fixed in c8f6f88cd1df35155258285c4f43268b361819df; From 2908d778ab3e244900c310974e1fc1c69066e450 · fixed in 278455a82245a572aeb218a6212a416a98e418de; From 2908d778ab3e244900c310974e1fc1c69066e450 · fixed in b3e655e52b98a1d3df41c8e42035711e083099f8; From 2908d778ab3e244900c310974e1fc1c69066e450 · fixed in e354793a7ab9bb0934ea699a9d57bcd1b48fc27b; From 2908d778ab3e244900c310974e1fc1c69066e450 · fixed in a41dc180b6e1229ae49ca290ae14d82101c148c3; From 2908d778ab3e244900c310974e1fc1c69066e450 · fixed in 751c19635c2bfaaf2836a533caa3663633066dcf; From 2908d778ab3e244900c310974e1fc1c69066e450 · fixed in f6ab594672d4cba08540919a4e6be2e202b60007

• Linux Linux

  2.6.19

• KernelLinux

  From 2.6.19 · fixed in 5.10.248; From 5.11.0 · fixed in 5.15.198; From 5.16.0 · fixed in 6.1.160; From 6.2.0 · fixed in 6.6.120; From 6.7.0 · fixed in 6.12.64; From 6.13.0 · fixed in 6.18.3

References 7