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CVE-2023-1252 is a use-after-free vulnerability in Linux kernel OverlayFS asynchronous I/O request handling, involving struct ovl_aio_req. Concurrent file operations involving OverlayFS and an Ext4 filesystem can cause the request object to be accessed after it has been freed. Kernels that do not include the upstream fix titled “ovl: fix use after free in struct ovl_aio_req” may be affected.
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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.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel OverlayFS use-after-free involving ovl_aio_req.
Linux kernel OverlayFS asynchronous I/O request use-after-free.
Linux kernel OverlayFS asynchronous-I/O request use-after-free vulnerability.
Linux kernel OverlayFS asynchronous-I/O request use-after-free vulnerability.
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.