CVE-2026-98753
- Source
- https://cve.org/CVERecord?id=CVE-2026-98753
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98753.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98753
- Downstream
- Published
- 2026-10-18T15:47:37Z
- Modified
- 2026-10-19T02:47:15Z
- Summary
- tty: tty_port: restore TTY_IO_ERROR on activation failure
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tty: tty_port: restore TTY_IO_ERROR on activation failure
Make sure to restore the TTY_IO_ERROR flag if activation fails to prevent I/O attempts on a port that is gone or powered down.
This specifically avoids issues like kernel panic due to unclocked accesses or NULL-pointer dereferences when accessing powered down or deregistered ports when a TTY ioctl races with hangup and open.
Note that the flag is set again in tty_port_close() but not restoring it on activation failure leaves a window where drivers fail to handle the ioctl-hangup race.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98753.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/34d4f67472ef7a744970b772a8565ddc727788e2
- https://git.kernel.org/stable/c/56964f6a31238fb41d5830bb42520c5b10ff7d8f
- https://git.kernel.org/stable/c/6388409b711eb91b14fa075a4d861ccc4df1cfe7
- https://git.kernel.org/stable/c/7021acc84c2e0add77a1a33152e3a1e428fdbfdb
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98753.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98753
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda9a37ec33a1b3e66b260ac1c29bff0aec8b89ae4Fixed34d4f67472ef7a744970b772a8565ddc727788e2Fixed7021acc84c2e0add77a1a33152e3a1e428fdbfdbFixed6388409b711eb91b14fa075a4d861ccc4df1cfe7Fixed56964f6a31238fb41d5830bb42520c5b10ff7d8f