CVE-2022-49054

Drivers: hv: vmbus: Deactivate sysctl_record_panic_msg by default in isolated guests

MEDIUM
5.5
CVSS Score
Published: February 26, 2025 at 01:54 AM UTC
Updated: August 5, 2026 at 09:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

Description

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Deactivate sysctl_record_panic_msg by default in isolated guests hv_panic_page might contain guest-sensitive information, do not dump it over to Hyper-V by default in isolated guests. While at it, update some comments in hyperv_{panic,die}_event().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.15.355.12 ≤ v < 5.15.355.12 ≤ v < 5.17.45.12 ≤ v < 5.185.16 ≤ v < 5.17.45.18 rc1a6c76bb08dc7f7ff2b1c381002eb6c7211746182
Vendor states this is fixed in 1b576e81d31b56b248316b8ff816b1cc5c4407c7 (fixed)
Vendor states this is fixed in 6230bc50d6d21cae4c084766623d0a6d17958721 (fixed)
Vendor states this is fixed in 9f8b577f7b43b2170628d6c537252785dcc2dcea (fixed)
Vendor states this is fixed in 5.12 (unaffected)
Vendor states this is fixed in 5.15.35 (unaffected)
Vendor states this is fixed in 5.17.4 (unaffected)
Vendor states this is fixed in 5.18 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1b576e81d31b56b248316b8ff816b1cc5c4407c7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6230bc50d6d21cae4c084766623d0a6d17958721
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9f8b577f7b43b2170628d6c537252785dcc2dcea

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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