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CVE-2022-50673 is a use-after-free vulnerability in the Linux kernel ext4 filesystem's ext4_orphan_cleanup function during filesystem mount processing. When ext4_inode_attach_jinode() returns -ENOMEM after orphan-list processing, iput(inode) can free the inode while last_orphan still references it. A subsequent cleanup-loop iteration can add the freed inode to the orphan list, causing a use-after-free in list handling. The fix propagates the ext4_inode_attach_jinode() return value so that processing does not continue with the stale inode reference.
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20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Vulnerability referenced by the advisory; no individual description is provided.
A Linux kernel ext4 use-after-free vulnerability in ext4_orphan_cleanup.
A Linux kernel ext4 use-after-free vulnerability in ext4_orphan_cleanup.
A Linux kernel ext4 use-after-free vulnerability in ext4_orphan_cleanup.
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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.