Description
In the Linux kernel, the following vulnerability has been resolved: kasan: remove kasan_find_vm_area() to prevent possible deadlock find_vm_area() couldn't be called in atomic_context. If find_vm_area() is called to reports vm area information, kasan can trigger deadlock like: CPU0 CPU1 vmalloc(); alloc_vmap_area(); spin_lock(&vn->busy.lock) spin_lock_bh(&some_lock); <interrupt occurs> <in softirq> spin_lock(&some_lock); <access invalid address> kasan_report(); print_report(); print_address_description(); kasan_find_vm_area(); find_vm_area(); spin_lock(&vn->busy.lock) // deadlock! To prevent possible deadlock while kasan reports, remove kasan_find_vm_area().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
c056a364e9546bd513d1f5205f0ee316d8acb910 to < 595f78d99b9051600233c0a5c4c47e1097e6ed01affectedc056a364e9546bd513d1f5205f0ee316d8acb910 to < 8377d7744bdce5c4b3f1b58924eebd3fdc078dfcaffectedc056a364e9546bd513d1f5205f0ee316d8acb910 to < 2d89dab1ea6086e6cbe6fe92531b496fb6808cb9affectedc056a364e9546bd513d1f5205f0ee316d8acb910 to < 0c3566d831def922cd56322c772a7b20d8b0e0c0affectedc056a364e9546bd513d1f5205f0ee316d8acb910 to < 6ee9b3d84775944fb8c8a447961cd01274ac671caffected
Linux Linux
Default version status: affected
5.18affected0 to < 5.18unaffected6.1.146 to ≤ 6.1.*unaffected6.6.99 to ≤ 6.6.*unaffected6.12.39 to ≤ 6.12.*unaffected6.15.7 to ≤ 6.15.*unaffected6.16 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/595f78d99b9051600233c0a5c4c47e1097e6ed01 ↗
- https://git.kernel.org/stable/c/8377d7744bdce5c4b3f1b58924eebd3fdc078dfc ↗
- https://git.kernel.org/stable/c/2d89dab1ea6086e6cbe6fe92531b496fb6808cb9 ↗
- https://git.kernel.org/stable/c/0c3566d831def922cd56322c772a7b20d8b0e0c0 ↗
- https://git.kernel.org/stable/c/6ee9b3d84775944fb8c8a447961cd01274ac671c ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗