CVE-2026-90335 (GCVE-0-2026-90335)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:08 – Updated: 2026-10-21 12:51
VLAI
Title
tty: skip cdev_del() when no cdev is registered
Summary
In the Linux kernel, the following vulnerability has been resolved: tty: skip cdev_del() when no cdev is registered TTY device registration can fail before a cdev is allocated. Serial core keeps the port so setserial can still use it, and later removal passes the NULL cdev slot to cdev_del(), causing a NULL-pointer dereference. Only delete the cdev when the slot is not NULL.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a3a10ce3429e5dee623ad5c8407ea58e204fcb0a , < ea3d2fae7c1d6492145976553817d22e8ef69a0e (git)
Affected: a3a10ce3429e5dee623ad5c8407ea58e204fcb0a , < 21031bd0d662549412378110c989b164feb6e4be (git)
Affected: a3a10ce3429e5dee623ad5c8407ea58e204fcb0a , < 2af4c46b429907edc8cb069c78fca1d950120b98 (git)
Affected: a3a10ce3429e5dee623ad5c8407ea58e204fcb0a , < 3dbf85ef40b6366ba15e882f7536cdc98bea579a (git)
Affected: a3a10ce3429e5dee623ad5c8407ea58e204fcb0a , < c3b5623fd97648f2747444aa8932ae604662df93 (git)
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Linux Linux Affected: 4.3
Unaffected: 0 , < 4.3 (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.114 , ≤ 6.12.* (semver)
Unaffected: 6.18.57 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/tty_io.c"
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          "vendor": "Linux",
          "versions": [
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          "lang": "en",
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:51:04.667Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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          "url": "https://git.kernel.org/stable/c/c3b5623fd97648f2747444aa8932ae604662df93"
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      "title": "tty: skip cdev_del() when no cdev is registered",
      "x_generator": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90335",
    "datePublished": "2026-09-17T16:08:48.127Z",
    "dateReserved": "2026-09-11T19:38:34.803Z",
    "dateUpdated": "2026-10-21T12:51:04.667Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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      "date": "2026-10-25",
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      "percentile": "0.10918"
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    "nvd": {
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          }
        ],
        "id": "CVE-2026-90335",
        "lastModified": "2026-10-21T13:20:51.147",
        "metrics": {},
        "published": "2026-09-17T17:17:32.073",
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      "cve": "CVE-2026-90335",
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      "product_status:known_affected": "263",
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: tty: skip cdev_del() when no cdev is registered",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90335.json",
      "version": "3"
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      "cve": "CVE-2026-90335",
      "id": "CVE-2026-90335",
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      "product_status:known_not_affected": "83",
      "product_status:recommended": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-90335",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-90335.json",
      "version": "7"
    }
  }
}



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