CVE-2023-52615

2024-03-1811:15:08

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

hwrng

linux kernel

vulnerability

dead-lock

mmap

cve-2023-52615

nvd

6.2 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.1%

JSON

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

hwrng: core - Fix page fault dead lock on mmap-ed hwrng

There is a dead-lock in the hwrng device read path. This triggers
when the user reads from /dev/hwrng into memory also mmap-ed from
/dev/hwrng. The resulting page fault triggers a recursive read
which then dead-locks.

Fix this by using a stack buffer when calling copy_to_user.

Affected configurations

Vulners

Node

linuxlinux_kernelRange2.6.33–4.19.307

linuxlinux_kernelRange4.20.0–5.4.269

linuxlinux_kernelRange5.5.0–5.10.210

linuxlinux_kernelRange5.11.0–5.15.149

linuxlinux_kernelRange5.16.0–6.1.76

linuxlinux_kernelRange6.2.0–6.6.15

linuxlinux_kernelRange6.7.0–6.7.3

linuxlinux_kernelRange6.8.0≥

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

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
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/char/hw_random/core.c"
    ],
    "versions": [
      {
        "version": "9996508b3353",
        "lessThan": "eafd83b92f6c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9996508b3353",
        "lessThan": "5030d4c79886",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9996508b3353",
        "lessThan": "c6a8111aacbf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9996508b3353",
        "lessThan": "26cc6d7006f9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9996508b3353",
        "lessThan": "aa8aa16ed9ad",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9996508b3353",
        "lessThan": "ecabe8cd456d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9996508b3353",
        "lessThan": "6822a1427178",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9996508b3353",
        "lessThan": "78aafb3884f6",
        "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/char/hw_random/core.c"
    ],
    "versions": [
      {
        "version": "2.6.33",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.33",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.307",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.269",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.210",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.149",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.76",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.15",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.7.3",
        "lessThanOrEqual": "6.7.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]