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.
CVSS
7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
from 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 before f85b9bfb08ba2b642d1810c6c4ae1e7b46f1776a; from 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 before f117d0467215d7f1d445ae16d2c799637e63dc6c; from 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 before b52153da1f42e2f4d6259257a7ba027331671a93; from 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 before 4584486cfcca24b7b586da3377eb3cffd48669ec; 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 builds before 031e00249e9e6bee72ba66701c8f83b45fc4b8a2; 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 builds before 59b97641de03c081f26b3a8876628c765b5faa25; 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 builds before 5f2b28b79d2d1946ee36ad8b3dc0066f73c90481
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.
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