CVE-2024-42139 ice: Fix improper extts handling

2024-07-3007:46:33

Linux

www.cve.org

cve-2024-42139

fix improper extts handling

linux kernel

extts events

ptp is released

kernel crash

EPSS

Percentile

9.4%

JSON

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

ice: Fix improper extts handling

Extts events are disabled and enabled by the application ts2phc.
However, in case where the driver is removed when the application is
running, a specific extts event remains enabled and can cause a kernel
crash.
As a side effect, when the driver is reloaded and application is started
again, remaining extts event for the channel from a previous run will
keep firing and the message “extts on unexpected channel” might be
printed to the user.

To avoid that, extts events shall be disabled when PTP is released.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/intel/ice/ice_ptp.c",
      "drivers/net/ethernet/intel/ice/ice_ptp.h"
    ],
    "versions": [
      {
        "version": "172db5f91d5f",
        "lessThan": "9f69b31ae9e2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "172db5f91d5f",
        "lessThan": "00d3b4f54582",
        "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/net/ethernet/intel/ice/ice_ptp.c",
      "drivers/net/ethernet/intel/ice/ice_ptp.h"
    ],
    "versions": [
      {
        "version": "5.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.14",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.9",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]