net: dsa: sja1105: fix kasan out-of-bounds warning in sja1105_table_delete_entry()

Summary

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.

Timeline

1. Apr 16, 2025, 2:12 PM UTCCVE published
2. Oct 15, 2026, 1:05 AM UTCRecord last updated

Affected versions

• Linux Linux

  From 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 · fixed in f85b9bfb08ba2b642d1810c6c4ae1e7b46f1776a; From 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 · fixed in f117d0467215d7f1d445ae16d2c799637e63dc6c; From 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 · fixed in b52153da1f42e2f4d6259257a7ba027331671a93; From 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 · fixed in 4584486cfcca24b7b586da3377eb3cffd48669ec; From 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 · fixed in 031e00249e9e6bee72ba66701c8f83b45fc4b8a2; From 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 · fixed in 59b97641de03c081f26b3a8876628c765b5faa25; From 6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 · fixed in 5f2b28b79d2d1946ee36ad8b3dc0066f73c90481

• Linux Linux

  5.2

• KernelLinux

  From 5.2.0 · fixed in 5.10.258; From 5.11.0 · fixed in 5.15.209; From 5.16.0 · fixed in 6.1.160; From 6.2.0 · fixed in 6.6.120; From 6.7.0 · fixed in 6.12.59; From 6.13.0 · fixed in 6.14.2

References 7