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CVE-2022-49058 is a potential buffer overflow in the Linux kernel CIFS client’s symbolic-link handling. A symlink length value parsed with sscanf() was used without validation against the capacity of the destination link_str buffer. A malformed or maliciously supplied length could therefore cause a copy operation to exceed the destination buffer. The upstream fix rejects lengths larger than the link_str buffer before use.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel CIFS flaw involving a potential buffer overflow when handling symbolic links.
A potential buffer-overflow vulnerability in Linux kernel CIFS symlink handling, addressed by the Red Hat kernel security update.
A Linux kernel CIFS flaw involving a potential buffer overflow when handling symbolic links.
A potential buffer-overflow vulnerability in the Linux kernel CIFS component when handling symbolic links.
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.