VulnerabilityPublished 18 Oct 2026Updated 21 Oct 2026

CVE-2026-98750: Linux kernel · tty: fix saved termios reset race

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in dcaf0251f847a45861e94c6617024a9455687d2f : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:18 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in dcaf0251f847a45861e94c6617024a9455687d2f, 1572d86bcf0bcb848d20fc5e5de7ed6963034c2b, 8df07fe93573e9e548d6645273e9bcb6eb74059e +2

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 93857edd9829e144acb6c7e72d593f6e01aead66, < dcaf0251f847a45861e94c6617024a9455687d2f	Fixed in dcaf0251f847a45861e94c6617024a9455687d2f
LinuxLinux	Affected ≥ 93857edd9829e144acb6c7e72d593f6e01aead66, < 1572d86bcf0bcb848d20fc5e5de7ed6963034c2b	Fixed in 1572d86bcf0bcb848d20fc5e5de7ed6963034c2b
LinuxLinux	Affected ≥ 93857edd9829e144acb6c7e72d593f6e01aead66, < 8df07fe93573e9e548d6645273e9bcb6eb74059e	Fixed in 8df07fe93573e9e548d6645273e9bcb6eb74059e
LinuxLinux	Affected ≥ 93857edd9829e144acb6c7e72d593f6e01aead66, < 08bf919f041af9de372428bb0c938157ea144164	Fixed in 08bf919f041af9de372428bb0c938157ea144164
LinuxLinux	Affected ≥ 93857edd9829e144acb6c7e72d593f6e01aead66, < 6b4e15cccfbe03b7c6ae60ff570c401bfb1e51d6	Fixed in 6b4e15cccfbe03b7c6ae60ff570c401bfb1e51d6
LinuxLinux	Affected =4.12	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: tty: fix saved termios reset race Resetting saved termios state on device registration is needed where a minor number can be reused for an entirely different device and where the old settings may prevent the port from even being opened (e.g. when CLOCAL is not set). Not all TTY drivers guarantee that the minor number is no longer in use when registering devices however, something which can lead to a use-after-free when closing a TTY (and saving its termios) races with re-registration. Add a new TTY_DRIVER_RESET_SAVED_TERMIOS flag to request that any saved termios state is reset on registration and only set it for drivers that make sure that the minor number is no longer in use.

References

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