CVE-2025-22107

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 < f85b9bfb08ba2b642d1810c6c4ae1e7b46f1776aaffected
LinuxLinux6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 < f117d0467215d7f1d445ae16d2c799637e63dc6caffected
LinuxLinux6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 < b52153da1f42e2f4d6259257a7ba027331671a93affected
LinuxLinux6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 < 4584486cfcca24b7b586da3377eb3cffd48669ecaffected
LinuxLinux6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 < 031e00249e9e6bee72ba66701c8f83b45fc4b8a2affected
LinuxLinux6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 < 59b97641de03c081f26b3a8876628c765b5faa25affected
LinuxLinux6666cebc5e306f49a25bd20aa8c1cb8ef8950df5 < 5f2b28b79d2d1946ee36ad8b3dc0066f73c90481affected
LinuxLinux5.2affected
LinuxLinux0 < 5.2unaffected
LinuxLinux5.10.258 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.160 <= 6.1.*unaffected
LinuxLinux6.6.120 <= 6.6.*unaffected
LinuxLinux6.12.59 <= 6.12.*unaffected
LinuxLinux6.14.2 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

References