CVE-2026-74675
vt: stabilize tty reference in kbd_keycode with tty_port_tty_get
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 22, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b84fd400f80adf4d1c88fbce50ae1cf2f8119e65 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 38400673c9bfb39cfc87539e1a072087e98f4e4f 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cab5a342f0589334046741006d8a280514f94235 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 38a0aa593ebc275aea6f79534d07f44e43768ce6 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3f6b1d3fcfc26dc3fc85262f753439df93b055b4 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b664592e9ba8c47c9e23408db7ba52eb9f946c8a 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cc4a1a2ce0c58eafd477effb055863935260ddc1 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e25d47a526939ad44b75f778b8a7500562b84fc1 0 < 5.10.265 0 < 5.15.216 0 < 6.1.183 0 < 6.6.152 0 < 6.12.104 0 < 6.18.45 0 < 7.1.9
Linux / Linux
All versions affected References
git.kernel.org: https://git.kernel.org/stable/c/b84fd400f80adf4d1c88fbce50ae1cf2f8119e65 git.kernel.org: https://git.kernel.org/stable/c/38400673c9bfb39cfc87539e1a072087e98f4e4f git.kernel.org: https://git.kernel.org/stable/c/cab5a342f0589334046741006d8a280514f94235 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/cc4a1a2ce0c58eafd477effb055863935260ddc1 git.kernel.org: https://git.kernel.org/stable/c/e25d47a526939ad44b75f778b8a7500562b84fc1