CVE-2026-74675
vt: stabilize tty reference in kbd_keycode with tty_port_tty_get
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.
INFO
Published Date :
Aug. 22, 2026, 4:16 p.m.
Last Modified :
Aug. 22, 2026, 4:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-74675
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Acquire tty reference using tty_port_tty_get.
- Release tty reference using tty_kref_put.
- Ensure proper reference counting for tty pointer.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-74675.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74675 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-74675
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-74675 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74675 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 22, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'b84fd400f80adf4d1c88fbce50ae1cf2f8119e65', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '38400673c9bfb39cfc87539e1a072087e98f4e4f', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'cab5a342f0589334046741006d8a280514f94235', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '38a0aa593ebc275aea6f79534d07f44e43768ce6', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '3f6b1d3fcfc26dc3fc85262f753439df93b055b4', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'b664592e9ba8c47c9e23408db7ba52eb9f946c8a', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'cc4a1a2ce0c58eafd477effb055863935260ddc1', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'e25d47a526939ad44b75f778b8a7500562b84fc1', 'versionType': 'git'}, {'status': 'affected', 'version': '0', 'lessThan': '5.10.265', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '5.15.216', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.1.183', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.6.152', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.12.104', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.18.45', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '7.1.9', 'versionType': 'semver'}], 'programFiles': ['drivers/tty/vt/keyboard.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'unaffected', 'version': '5.10.265', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.216', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.183', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.152', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.104', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.45', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.9', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/tty/vt/keyboard.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/38400673c9bfb39cfc87539e1a072087e98f4e4f Added Reference https://git.kernel.org/stable/c/38a0aa593ebc275aea6f79534d07f44e43768ce6 Added Reference https://git.kernel.org/stable/c/3f6b1d3fcfc26dc3fc85262f753439df93b055b4 Added Reference https://git.kernel.org/stable/c/b664592e9ba8c47c9e23408db7ba52eb9f946c8a Added Reference https://git.kernel.org/stable/c/b84fd400f80adf4d1c88fbce50ae1cf2f8119e65 Added Reference https://git.kernel.org/stable/c/cab5a342f0589334046741006d8a280514f94235 Added Reference https://git.kernel.org/stable/c/cc4a1a2ce0c58eafd477effb055863935260ddc1 Added Reference https://git.kernel.org/stable/c/e25d47a526939ad44b75f778b8a7500562b84fc1