CVE-2026-98754

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.

EPSS

0.2% chance of exploitation in the next 30 days; higher than 5% of CVEs (scores of 2026-10-25)

Published

2026-10-18

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• https://git.kernel.org/stable/c/03b49c991abb8d021ca6fe51cd173447236b0552
• https://git.kernel.org/stable/c/1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4
• https://git.kernel.org/stable/c/57753441ef84bee3bf0e9ee1e3778d119c44aa32
• https://git.kernel.org/stable/c/821050631750e982007c0856c119346edba51cae
• https://git.kernel.org/stable/c/88f6ecb058801e9ce7b9aabc966530118d7cd53c

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