CVE-2026-98754High· 7.0▾ TwilightIn 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 callback…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
— → 7
none → high
Last analysed / modified upstream
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.
Linux >= 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb < 57753441ef84bee3bf0e9ee1e3778d119c44aa32Linux >= 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb < 88f6ecb058801e9ce7b9aabc966530118d7cd53cLinux >= 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb < 821050631750e982007c0856c119346edba51caeLinux >= 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb < 1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4Linux >= 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb < 03b49c991abb8d021ca6fe51cd173447236b0552Linux 4.14Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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