CVE-2025-40279 | BDVDB-2026-304168 Detail
LinuxLinux
Description#
In the Linux kernel, the following vulnerability has been resolved: net: sched: act_connmark: initialize struct tc_ife to fix kernel leak In tcf_connmark_dump(), the variable 'opt' was partially initialized using a designatied initializer. While the padding bytes are reamined uninitialized. nla_put() copies the entire structure into a netlink message, these uninitialized bytes leaked to userspace. Initialize the structure with memset before assigning its fields to ensure all members and padding are cleared prior to beign copied.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/218b67c8c8246d47a2a7910eae80abe4861fe2b7
- https://git.kernel.org/stable/c/73cc56c608c209d3d666cc571293b090a471da70
- https://git.kernel.org/stable/c/31e4aa93e2e5b5647fc235b0f6ee329646878f9e
- https://git.kernel.org/stable/c/51cb05d4fd632596816ba44e882e84db9fb28a7e
- https://git.kernel.org/stable/c/25837889ec062f2b7618142cd80253dff3da5343
- https://git.kernel.org/stable/c/62b656e43eaeae445a39cd8021a4f47065af4389
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.