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CVE-2024-40978 is a flaw in the Linux kernel qedi SCSI driver’s debugfs read handler for the do-not-recover command attribute. The handler passed its user-space output-buffer pointer directly to sprintf(), causing kernel code to write through a __user pointer rather than formatting into kernel memory and safely copying the result to user space. The resulting invalid kernel access can trigger a page fault and kernel crash. The fix formats output in a small stack buffer and returns it through simple_read_from_buffer(), which performs the required copy_to_user() operation.
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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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Crash condition in Linux kernel QEDI SCSI debugfs attribute handling.
Linux kernel SCSI qedi driver flaw that can cause a crash while reading a debugfs attribute.
Linux kernel SCSI qedi driver flaw that can cause a crash when reading a debugfs attribute.
Linux kernel SCSI qedi issue that can cause a crash while reading a debugfs attribute.
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.