CVE-2023-52677 riscv: Check if the code to patch lies in the exit section

2024-05-1714:24:42

Linux

github.com

linux kernel

vulnerability

resolution

risc-v

exit section

vmalloc region

address

6.9 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.6%

JSON

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

riscv: Check if the code to patch lies in the exit section

Otherwise we fall through to vmalloc_to_page() which panics since the
address does not lie in the vmalloc region.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/riscv/include/asm/sections.h",
      "arch/riscv/kernel/patch.c",
      "arch/riscv/kernel/vmlinux-xip.lds.S",
      "arch/riscv/kernel/vmlinux.lds.S"
    ],
    "versions": [
      {
        "version": "043cb41a85de",
        "lessThan": "938f70d14618",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "043cb41a85de",
        "lessThan": "890cfe5337e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "043cb41a85de",
        "lessThan": "8db56df4a954",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "043cb41a85de",
        "lessThan": "1d7a03052846",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "043cb41a85de",
        "lessThan": "420370f3ae3d",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/riscv/include/asm/sections.h",
      "arch/riscv/kernel/patch.c",
      "arch/riscv/kernel/vmlinux-xip.lds.S",
      "arch/riscv/kernel/vmlinux.lds.S"
    ],
    "versions": [
      {
        "version": "5.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.7",
        "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"
      }
    ]
  }
]