CVE-2023-52457 serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed

2024-02-2314:46:19

Linux

www.cve.org

linux kernel

vulnerability

cve-2023-52457

serial 8250

omap driver

7.7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

In the Linux kernel, the following vulnerability has been resolved:

serial: 8250: omap: Don’t skip resource freeing if pm_runtime_resume_and_get() failed

Returning an error code from .remove() makes the driver core emit the
little helpful error message:

remove callback returned a non-zero value. This will be ignored.

and then remove the device anyhow. So all resources that were not freed
are leaked in this case. Skipping serial8250_unregister_port() has the
potential to keep enough of the UART around to trigger a use-after-free.

So replace the error return (and with it the little helpful error
message) by a more useful error message and continue to cleanup.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/serial/8250/8250_omap.c"
    ],
    "versions": [
      {
        "version": "2d66412563ef",
        "lessThan": "b502fb43f7fb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d833cba201ad",
        "lessThan": "bc57f3ef8a9e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e0db709a58bd",
        "lessThan": "828cd829483f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e3f0c638f428",
        "lessThan": "d74173bda29a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e3f0c638f428",
        "lessThan": "887a558d0298",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e3f0c638f428",
        "lessThan": "95e4e0031eff",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e3f0c638f428",
        "lessThan": "ad90d0358bd3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/serial/8250/8250_omap.c"
    ],
    "versions": [
      {
        "version": "6.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.1",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.268",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.209",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.148",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.75",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.14",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.7.2",
        "lessThanOrEqual": "6.7.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]