CVE-2026-98754Published

tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup

Exact source revision recorded 26 Oct 2026 08:20:49 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-98754

Published

In the Linux kernel, the following vulnerability has been resolved: tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup vcc_cleanup() sets port->tty to NULL without holding port->lock, racing with vcc_event() LDC callbacks that read port->tty under port->lock and then use tty->port. This can cause a use-after-free when the callback dereferences tty->port after cleanup has already destroyed and freed it.

Source published: 18 Oct 2026 15:47:40 UTC
Source modified: 26 Oct 2026 06:55:48 UTC
Observed here: 26 Oct 2026 08:20:49 UTC
Source terms: CVE Program Terms of Use

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