CVE-2021-47645

media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com

MEDIUM
5.5
CVSS Score
Published: February 26, 2025 at 01:54 AM UTC
Updated: August 11, 2026 at 03:37 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com On the case tmp_dcim=1, the index of buffer is miscalculated. This generate a NULL pointer dereference later. So let's fix the calcul and add a check to prevent this to reappear.

Affected

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

v < 5.10.1105.10 ≤ v < 5.10.1105.10 ≤ v < 5.15.335.10 ≤ v < 5.16.195.10 ≤ v < 5.17.25.10 ≤ v < 5.25.11 ≤ v < 5.15.335.16 ≤ v < 5.16.195.17 ≤ v < 5.17.25.1083f89a8bcbc3c520a889b5fc7c4b95669d712f65
Vendor states this is fixed in 20811bbe685ca3eddd34b0c750860427d7030910 (fixed)
Vendor states this is fixed in 20db2ed1e2f9fcd417fa67853e5154f0c2537d6c (fixed)
Vendor states this is fixed in 7e76f3ed7ab2ae026c6ef9cc23096a7554af8c52 (fixed)
Vendor states this is fixed in 8dce4b265a5357731058f69645840dabc718c687 (fixed)
Vendor states this is fixed in bafec1a6ba4b187a7fcdcfce0faebdc623d4ef8e (fixed)
Vendor states this is fixed in 5.10 (unaffected)
Vendor states this is fixed in 5.10.110 (unaffected)
Vendor states this is fixed in 5.15.33 (unaffected)
Vendor states this is fixed in 5.16.19 (unaffected)
Vendor states this is fixed in 5.17.2 (unaffected)
Vendor states this is fixed in 5.2 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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