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CVE-2021-47079

platform/x86: ideapad-laptop: fix a NULL pointer dereference

MEDIUM
5.5
CVSS Score
Published: March 1, 2024 at 09:15 PM UTC
Updated: June 17, 2026 at 04:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ideapad-laptop: fix a NULL pointer dereference The third parameter of dytc_cql_command should not be NULL since it will be dereferenced immediately.

Affected

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

Linux Kernel· Linux
95%
5.12 ≤ v < 5.12.75.12 ≤ v < 5.135.13 rc15.13 rc2ff36b0d953dc4cbc40a72945920ff8e805f1b0da
Vendor states this is fixed in beab753fe3b4e087411a850a64c6cd748544d8a1 (fixed)
Vendor states this is fixed in ff67dbd554b2aaa22be933eced32610ff90209dd (fixed)
Vendor states this is fixed in 5.12 (unaffected)
Vendor states this is fixed in 5.12.7 (unaffected)
Vendor states this is fixed in 5.13 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/beab753fe3b4e087411a850a64c6cd748544d8a1
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ff67dbd554b2aaa22be933eced32610ff90209dd

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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