Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c056a364e9546bd513d1f5205f0ee316d8acb910 before 595f78d99b9051600233c0a5c4c47e1097e6ed01; affected c056a364e9546bd513d1f5205f0ee316d8acb910 before 8377d7744bdce5c4b3f1b58924eebd3fdc078dfc; affected c056a364e9546bd513d1f5205f0ee316d8acb910 before 2d89dab1ea6086e6cbe6fe92531b496fb6808cb9; affected c056a364e9546bd513d1f5205f0ee316d8acb910 before 0c3566d831def922cd56322c772a7b20d8b0e0c0; affected c056a364e9546bd513d1f5205f0ee316d8acb910 before 6ee9b3d84775944fb8c8a447961cd01274ac671c |
| Linux / Linux | affected 5.18; unaffected 0 before 5.18; unaffected 6.1.146 through 6.1.*; unaffected 6.6.99 through 6.6.*; unaffected 6.12.39 through 6.12.*; unaffected 6.15.7 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
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
ADP enrichment
No English description supplied.