Answer in brief
CVE-2026-74675 records a High severity (CVSS 7.8) vulnerability in vt: stabilize tty reference in kbd_keycode with tty_port_tty_get. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=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 | b84fd400f80adf4d1c88fbce50ae1cf2f8119e65, 38400673c9bfb39cfc87539e1a072087e98f4e4f, cab5a342f0589334046741006d8a280514f94235, 38a0aa593ebc275aea6f79534d07f44e43768ce6, 3f6b1d3fcfc26dc3fc85262f753439df93b055b4, b664592e9ba8c47c9e23408db7ba52eb9f946c8a, cc4a1a2ce0c58eafd477effb055863935260ddc1, e25d47a526939ad44b75f778b8a7500562b84fc1, 5.10.265, 5.15.216, 6.1.183, 6.6.152, 6.12.104, 6.18.45, 7.1.9 |
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b84fd400f80adf4d1c88fbce50ae1cf2f8119e65 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <38400673c9bfb39cfc87539e1a072087e98f4e4f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cab5a342f0589334046741006d8a280514f94235 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <38a0aa593ebc275aea6f79534d07f44e43768ce6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3f6b1d3fcfc26dc3fc85262f753439df93b055b4 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b664592e9ba8c47c9e23408db7ba52eb9f946c8a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cc4a1a2ce0c58eafd477effb055863935260ddc1 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e25d47a526939ad44b75f778b8a7500562b84fc1 | b84fd400f80adf4d1c88fbce50ae1cf2f8119e65, 38400673c9bfb39cfc87539e1a072087e98f4e4f, cab5a342f0589334046741006d8a280514f94235, 38a0aa593ebc275aea6f79534d07f44e43768ce6, 3f6b1d3fcfc26dc3fc85262f753439df93b055b4, b664592e9ba8c47c9e23408db7ba52eb9f946c8a, cc4a1a2ce0c58eafd477effb055863935260ddc1, e25d47a526939ad44b75f778b8a7500562b84fc1 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 22, 2026
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.
Quoted source text, attributed separately from HOL analysis.