CVSS 7.0 · High EPSS 0,25%
Kerentanan pada linux kernel. Skor CVSS 3.1 7.0 (High) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: net: do not delay dst_entries_add() in dst_release() dst_entries_add() uses per-cpu data that might be freed at netns dismantle from ip6_route_net_exit() calling dst_entries_destroy() Before ip6_route_net_exit() can be called, we release all the dsts associated with this netns, via calls to dst_release(), which waits an rcu grace period before calling dst_destroy() dst_entries_add() use in dst_destroy() is racy, because dst_entries_destroy() could have been called already. Decrementing the number of dsts must happen sooner. Notes: 1) in CONFIG_XFRM case, dst_destroy() can call dst_release_immediate(child), this might also cause UAF if the child does not have DST_NOCOUNT set. IPSEC maintainers might take a look and see how to address this. 2) There is also discussion about removing this count of dst, which might happen in future kernels.
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 3.10.50 hingga sebelum 3.11 |
| linux | linux kernel | Versi 3.12.26 hingga sebelum 3.13 |
| linux | linux kernel | Versi 3.14.14 hingga sebelum 3.15 |
| linux | linux kernel | Versi 3.15.7 hingga sebelum 3.16 |
| linux | linux kernel | Versi 3.16 hingga sebelum 6.6.57 |
| linux | linux kernel | Versi 6.7 hingga sebelum 6.11.4 |
| linux | linux kernel | Versi 6.12 rc1 |
| linux | linux kernel | Versi 6.12 rc2 |