CVEvulnerability
CVE-2026-74675
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-22
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
vt: stabilize tty reference in kbd_keycode with tty_port_tty_get
kbd_keycode() reads vc->port.tty without acquiring a tty reference,
racing against con_shutdown() which clears port.tty under a different
lock. Use tty_port_tty_get()/tty_kref_put() to hold a proper reference
for the duration the tty pointer is needed.
References
- https://git.kernel.org/stable/c/38400673c9bfb39cfc87539e1a072087e98f4e4f git.kernel.org
- https://git.kernel.org/stable/c/38a0aa593ebc275aea6f79534d07f44e43768ce6 git.kernel.org
- https://git.kernel.org/stable/c/3f6b1d3fcfc26dc3fc85262f753439df93b055b4 git.kernel.org
- https://git.kernel.org/stable/c/b664592e9ba8c47c9e23408db7ba52eb9f946c8a git.kernel.org
- https://git.kernel.org/stable/c/b84fd400f80adf4d1c88fbce50ae1cf2f8119e65 git.kernel.org
- https://git.kernel.org/stable/c/cab5a342f0589334046741006d8a280514f94235 git.kernel.org
- https://git.kernel.org/stable/c/cc4a1a2ce0c58eafd477effb055863935260ddc1 git.kernel.org
- https://git.kernel.org/stable/c/e25d47a526939ad44b75f778b8a7500562b84fc1 git.kernel.org