CVE-2022-49766

Description

In the Linux kernel, the following vulnerability has been resolved: netlink: Bounds-check struct nlmsgerr creation In preparation for FORTIFY_SOURCE doing bounds-check on memcpy(), switch from __nlmsg_put to nlmsg_put(), and explain the bounds check for dealing with the memcpy() across a composite flexible array struct. Avoids this future run-time warning: memcpy: detected field-spanning write (size 32) of single field "&errmsg->msg" at net/netlink/af_netlink.c:2447 (size 16)

Reserved 2025-04-16 | Published 2025-05-01 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before aff4eb16f589c3af322a2582044bca365381fcd6
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 710d21fdff9a98d621cd4e64167f3ef8af4e2fd1
affected

Default status
affected

6.0.10
unaffected

6.1
unaffected

References

git.kernel.org/...c/aff4eb16f589c3af322a2582044bca365381fcd6

git.kernel.org/...c/710d21fdff9a98d621cd4e64167f3ef8af4e2fd1

cve.org (CVE-2022-49766)

nvd.nist.gov (CVE-2022-49766)

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