CVE-2026-46234EPSS p2.9%
CVE-2026-46234CVE-2026-46234
linux / linux_kernel
Description
In the Linux kernel, the following vulnerability has been resolved:
vsock: fix buffer size clamping order
In vsock_update_buffer_size(), the buffer size was being clamped to the
maximum first, and then to the minimum. If a user sets a minimum buffer
size larger than the maximum, the minimum check overrides the maximum
check, inverting the constraint.
This breaks the intended socket memory boundaries by allowing the
vsk->buffer_size to grow beyond the configured vsk->buffer_max_size.
Fix this by checking the minimum first, and then the maximum. This
ensures the buffer size never exceeds the buffer_max_size.
Scoring
| CVSS | 7.8 () |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.13% probability of exploitation · percentile 2.9% · 2026-06-18T12:00:27Z |
| Last modified | 2026-06-10 |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.