PT-2026-73029 · Linux · Linux Kernel
CVE-2026-74577
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Published
2026-08-15
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Updated
2026-08-18
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An information leak occurs in the Linux kernel when processing MPLS routes. The
mpls getroute() function constructs an RTM NEWROUTE reply for an RTM GETROUTE request using a struct rtmsg allocated from a socket buffer (skb) with a non-zeroed data area. Because the rtm tos variable is not initialized, one byte of uninitialized heap memory is leaked to user space during the recvmsg() operation.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Linux Kernel