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A vulnerability in the Linux kernel's tty subsystem, specifically in the flush_to_ldisc function of tty_buffer, could lead to a soft lockup. When data is rapidly sent to a pty master and the flush_to_ldisc workqueue processes the buffer in a tight loop on a non-preemptible kernel, the system can become unresponsive due to lack of rescheduling. The issue is triggered by concurrent data sending and buffer flushing on different cores, causing the workqueue to loop for extended periods without yielding.
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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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel TTY buffer soft-lockup flaw in flush_to_ldisc.
Linux kernel TTY buffer soft-lockup vulnerability.
Linux kernel TTY buffer vulnerability causing a soft lockup in flush_to_ldisc.
Linux kernel TTY buffer soft-lockup 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.