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CVE-2022-50406 is a memory-corruption vulnerability in the Linux kernel iomap subsystem when recording errors during filesystem writeback. The observed failure involves a NULL-pointer dereference in errseq_set, reached through __filemap_set_wb_err and iomap_do_writepage. It was reproduced on an arm64 system using XFS on a device-mapper volume, with storage I/O errors occurring during writeback. The vulnerability can cause a kernel oops or crash. The precise underlying memory-lifetime defect and complete affected upstream version range are not established.
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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.
17 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A memory-corruption flaw in Linux kernel iomap error recording during writeback.
A Linux kernel iomap flaw that can cause memory corruption while recording errors during writeback.
Linux kernel iomap memory-corruption flaw when recording errors during writeback.
Linux kernel iomap memory-corruption flaw triggered while recording errors during writeback.
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.