net: dsa: sja1105: fix kasan out-of-bounds warning in sja1105_table_delete_entry()
There are actually 2 problems:
- deleting the last element doesn't require the memmove of elements
[i + 1, end) over it. Actually, element i+1 is out of bounds.
- The memmove itself should move size - i - 1 elements, because the last
element is out of bounds.
The out-of-bounds element still remains out of bounds after being
accessed, so the problem is only that we touch it, not that it becomes
in active use. But I suppose it can lead to issues if the out-of-bounds
element is part of an unmapped page.
Metrics
Affected Vendors & Products
| Source | ID | Title | 
|---|---|---|
  EUVD | 
                EUVD-2025-11175 | In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: fix kasan out-of-bounds warning in sja1105_table_delete_entry() There are actually 2 problems: - deleting the last element doesn't require the memmove of elements [i + 1, end) over it. Actually, element i+1 is out of bounds. - The memmove itself should move size - i - 1 elements, because the last element is out of bounds. The out-of-bounds element still remains out of bounds after being accessed, so the problem is only that we touch it, not that it becomes in active use. But I suppose it can lead to issues if the out-of-bounds element is part of an unmapped page. | 
  Ubuntu USN | 
                USN-7594-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7594-2 | Linux kernel (Azure) vulnerabilities | 
  Ubuntu USN | 
                USN-7594-3 | Linux kernel vulnerabilities | 
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Mon, 03 Nov 2025 18:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | 
        
        Linux
         Linux linux Kernel  | 
|
| Weaknesses | CWE-125 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products | 
        
        Linux
         Linux linux Kernel  | 
|
| Metrics | 
        
        
        cvssV3_1
         
  | 
    
        
        
        cvssV3_1
         
  | 
Sat, 19 Apr 2025 02:00:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References | 
         | |
| Metrics | 
        
        
        threat_severity
         
  | 
    
        
        cvssV3_1
         
 
  | 
Wed, 16 Apr 2025 14:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: fix kasan out-of-bounds warning in sja1105_table_delete_entry() There are actually 2 problems: - deleting the last element doesn't require the memmove of elements [i + 1, end) over it. Actually, element i+1 is out of bounds. - The memmove itself should move size - i - 1 elements, because the last element is out of bounds. The out-of-bounds element still remains out of bounds after being accessed, so the problem is only that we touch it, not that it becomes in active use. But I suppose it can lead to issues if the out-of-bounds element is part of an unmapped page. | |
| Title | net: dsa: sja1105: fix kasan out-of-bounds warning in sja1105_table_delete_entry() | |
| References | 
         | 
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-05-26T05:18:37.088Z
Reserved: 2024-12-29T08:45:45.820Z
Link: CVE-2025-22107
No data.
Status : Analyzed
Published: 2025-04-16T15:16:04.997
Modified: 2025-11-03T18:42:32.293
Link: CVE-2025-22107
                        OpenCVE Enrichment
                    No data.
 EUVD
 Ubuntu USN