CVSS 7.0 · High EPSS 0,26%
Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.0 (High) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix use-after-free vulnerability in amdtee_close_session There is a potential race condition in amdtee_close_session that may cause use-after-free in amdtee_open_session. For instance, if a session has refcount == 1, and one thread tries to free this session via: kref_put(&sess->refcount, destroy_session); the reference count will get decremented, and the next step would be to call destroy_session(). However, if in another thread, amdtee_open_session() is called before destroy_session() has completed execution, alloc_session() may return 'sess' that will be freed up later in destroy_session() leading to use-after-free in amdtee_open_session. To fix this issue, treat decrement of sess->refcount and removal of 'sess' from session list in destroy_session() as a critical section, so that it is executed atomically.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 5.6 hingga sebelum 5.10.199 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.136 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.59 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.5.8 |
| linux | linux kernel | Versi 6.6 rc1 |
| linux | linux kernel | Versi 6.6 rc2 |
| linux | linux kernel | Versi 6.6 rc3 |
| linux | linux kernel | Versi 6.6 rc4 |
| linux | linux kernel | Versi 6.6 rc5 |