CVE-2024-36911

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 36/100
Published: 2024-05-30 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

In the Linux kernel, the following vulnerability has been resolved: hv_netvsc: Don't free decrypted memory In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues. The netvsc driver could free decrypted/shared pages if set_memory_decrypted() fails. Check the decrypted field in the gpadl to decide whether to free the memory.

Weakness Classification (1)

Affected Software (9)

VendorProductVersion
Linux Linux d4dccf353db80e209f262e3973c834e6e48ba9a9 < fb671512ffb26570c05ba3fbe20752e645809192
Linux Linux d4dccf353db80e209f262e3973c834e6e48ba9a9 < a56fe611326332bf6b7126e5559590c57dcebad4
Linux Linux d4dccf353db80e209f262e3973c834e6e48ba9a9 < 4aaed9dbe8acd2b6114458f0498a617283d6275b
Linux Linux d4dccf353db80e209f262e3973c834e6e48ba9a9 < bbf9ac34677b57506a13682b31a2a718934c0e31
Linux Linux 5.16
linux linux_kernel < 6.6.31
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.62%
Raw Score 0.006170
Percentile 49.5%
Date 2026-10-30

EPSS Trend

2026-10-30
0.00617
2026-10-29
0.00617

Intelligence Sources

mitre ref →
nvd ref →