CVSS 5.5 · Medium EPSS 0,21%
Kerentanan pada linux kernel, debian linux. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: net: tipc: fix refcount warning in tipc_aead_encrypt syzbot reported a refcount warning [1] caused by calling get_net() on a network namespace that is being destroyed (refcount=0). This happens when a TIPC discovery timer fires during network namespace cleanup. The recently added get_net() call in commit e279024617134 ("net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done") attempts to hold a reference to the network namespace. However, if the namespace is already being destroyed, its refcount might be zero, leading to the use-after-free warning. Replace get_net() with maybe_get_net(), which safely checks if the refcount is non-zero before incrementing it. If the namespace is being destroyed, return -ENODEV early, after releasing the bearer reference. [1]: https://lore.kernel.org/all/68342b55.a70a0220.253bc2.0091.GAE@google.com/T/#m12019cf9ae77e1954f666914640efa36d52704a2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 6.12.31 hingga sebelum 6.12.34 |
| linux | linux kernel | Versi 6.14.9 hingga sebelum 6.15 |
| linux | linux kernel | Versi 6.15.1 hingga sebelum 6.15.3 |
| linux | linux kernel | Versi 5.10.238 |
| linux | linux kernel | Versi 5.15.185 |
| linux | linux kernel | Versi 6.1.141 |
| linux | linux kernel | Versi 6.6.93 |
| linux | linux kernel | Versi 6.15 |
| debian | debian linux | Versi 11.0 |