CVE-2026-98750 (GCVE-0-2026-98750)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:47 – Updated: 2026-10-21 12:56
VLAI
Title
tty: fix saved termios reset race
Summary
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6843 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 93857edd9829e144acb6c7e72d593f6e01aead66 , < 6b4e15cccfbe03b7c6ae60ff570c401bfb1e51d6 (git)
Affected: 93857edd9829e144acb6c7e72d593f6e01aead66 , < 1572d86bcf0bcb848d20fc5e5de7ed6963034c2b (git)
Affected: 93857edd9829e144acb6c7e72d593f6e01aead66 , < 08bf919f041af9de372428bb0c938157ea144164 (git)
Affected: 93857edd9829e144acb6c7e72d593f6e01aead66 , < dcaf0251f847a45861e94c6617024a9455687d2f (git)
Affected: 93857edd9829e144acb6c7e72d593f6e01aead66 , < 8df07fe93573e9e548d6645273e9bcb6eb74059e (git)
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Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.113 , ≤ 6.12.* (semver)
Unaffected: 6.18.56 , ≤ 6.18.* (semver)
Unaffected: 7.2.10 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/staging/greybus/uart.c",
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            "drivers/usb/serial/usb-serial.c",
            "include/linux/tty_driver.h"
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    "datePublished": "2026-10-18T15:47:35.167Z",
    "dateReserved": "2026-09-25T10:25:14.368Z",
    "dateUpdated": "2026-10-21T12:56:25.608Z",
    "state": "PUBLISHED"
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        "metrics": {},
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}



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