CVE-2025-40279 (GCVE-0-2025-40279)
Vulnerability from cvelistv5
Published
2025-12-06 21:51
Modified
2025-12-06 21:51
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 22a5dc0e5e3e8fef804230cd73ed7b0afd4c7bae
Version: 22a5dc0e5e3e8fef804230cd73ed7b0afd4c7bae
Version: 22a5dc0e5e3e8fef804230cd73ed7b0afd4c7bae
Version: 22a5dc0e5e3e8fef804230cd73ed7b0afd4c7bae
Version: 22a5dc0e5e3e8fef804230cd73ed7b0afd4c7bae
Version: 22a5dc0e5e3e8fef804230cd73ed7b0afd4c7bae
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        "dateUpdated": "2025-12-06T21:51:03.010Z",
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    "dateReserved": "2025-04-16T07:20:57.184Z",
    "dateUpdated": "2025-12-06T21:51:03.010Z",
    "state": "PUBLISHED"
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  }
}


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