CVE-2026-74675
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b84fd400f80adf4d1c88fbce50ae1cf2f8119e65 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 38400673c9bfb39cfc87539e1a072087e98f4e4f | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cab5a342f0589334046741006d8a280514f94235 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 38a0aa593ebc275aea6f79534d07f44e43768ce6 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3f6b1d3fcfc26dc3fc85262f753439df93b055b4 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b664592e9ba8c47c9e23408db7ba52eb9f946c8a | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cc4a1a2ce0c58eafd477effb055863935260ddc1 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e25d47a526939ad44b75f778b8a7500562b84fc1 | affected |
| Linux | Linux | 0 < 5.10.265 | affected |
| Linux | Linux | 0 < 5.15.216 | affected |
| Linux | Linux | 0 < 6.1.183 | affected |
| Linux | Linux | 0 < 6.6.152 | affected |
| Linux | Linux | 0 < 6.12.104 | affected |
| Linux | Linux | 0 < 6.18.45 | affected |
| Linux | Linux | 0 < 7.1.9 | affected |
| Linux | Linux | 5.10.265 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.216 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.183 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.152 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.104 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.45 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.9 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b84fd400f80adf4d1c88fbce50ae1cf2f8119e65
- https://git.kernel.org/stable/c/38400673c9bfb39cfc87539e1a072087e98f4e4f
- https://git.kernel.org/stable/c/cab5a342f0589334046741006d8a280514f94235
- https://git.kernel.org/stable/c/38a0aa593ebc275aea6f79534d07f44e43768ce6
- https://git.kernel.org/stable/c/3f6b1d3fcfc26dc3fc85262f753439df93b055b4
- https://git.kernel.org/stable/c/b664592e9ba8c47c9e23408db7ba52eb9f946c8a
- https://git.kernel.org/stable/c/cc4a1a2ce0c58eafd477effb055863935260ddc1
- https://git.kernel.org/stable/c/e25d47a526939ad44b75f778b8a7500562b84fc1
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