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CVE-2024-26638 is an incomplete-initialization vulnerability in the Linux kernel Network Block Device (NBD) driver. The NBD socket transmit/receive path creates a struct msghdr without fully initializing all fields. Consequently, the msg_get_inq field, added to struct msghdr, can retain an uninitialized value that is consumed during TCP receive processing. The upstream fix fully zero-initializes struct msghdr objects in the affected NBD path.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel Network Block Device message-header initialization flaw.
Linux kernel Network Block Device (nbd) flaw addressed by completely initializing struct msghdr.
Unknown
A low-severity Linux kernel Network Block Device (NBD) vulnerability caused by incomplete initialization of a struct msghdr. It was resolved in upstream/stable kernel releases and distributed through Fedora and Red Hat Enterprise Linux updates.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.