CVE-2021-47138

2024-03-2509:15:08

Linux

web.nvd.nist.gov

linux kernel

vulnerability

resolved

cxgb4

hardware register

out-of-bound memory access

nvd

AI Score

6.4

Confidence

Low

EPSS

Percentile

15.5%

JSON

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

cxgb4: avoid accessing registers when clearing filters

Hardware register having the server TID base can contain
invalid values when adapter is in bad state (for example,
due to AER fatal error). Reading these invalid values in the
register can lead to out-of-bound memory access. So, fix
by using the saved server TID base when clearing filters.

Affected configurations

Vulners

Node

linuxlinux_kernelRange5.2–5.4.124

linuxlinux_kernelRange5.5.0–5.10.42

linuxlinux_kernelRange5.11.0–5.12.9

linuxlinux_kernelRange5.13.0≥

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

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/chelsio/cxgb4/cxgb4_filter.c"
    ],
    "versions": [
      {
        "version": "b1a79360ee86",
        "lessThan": "0bf49b3c8d8b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b1a79360ee86",
        "lessThan": "02f03883fdb1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b1a79360ee86",
        "lessThan": "285207a558ab",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b1a79360ee86",
        "lessThan": "88c380df84fb",
        "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/chelsio/cxgb4/cxgb4_filter.c"
    ],
    "versions": [
      {
        "version": "5.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.2",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.124",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.42",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.12.9",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]