CVE-2023-52774

2024-05-2116:15:16

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

web.nvd.nist.gov

linux kernel

vulnerability

cve-2023-52774

resolved

protection

concurrent access

s390/dasd

device queue

dasd_profile_start

i/o

alias devices

kernel panic

incorrect pointer accesses

device lock

profile data pointer

nvd

6.5 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.1%

JSON

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

s390/dasd: protect device queue against concurrent access

In dasd_profile_start() the amount of requests on the device queue are
counted. The access to the device queue is unprotected against
concurrent access. With a lot of parallel I/O, especially with alias
devices enabled, the device queue can change while dasd_profile_start()
is accessing the queue. In the worst case this leads to a kernel panic
due to incorrect pointer accesses.

Fix this by taking the device lock before accessing the queue and
counting the requests. Additionally the check for a valid profile data
pointer can be done earlier to avoid unnecessary locking in a hot path.

Affected configurations

Vulners

Node

linuxlinux_kernelRange3.1–4.14.332

linuxlinux_kernelRange4.15.0–4.19.301

linuxlinux_kernelRange4.20.0–5.4.263

linuxlinux_kernelRange5.5.0–5.10.203

linuxlinux_kernelRange5.11.0–5.15.141

linuxlinux_kernelRange5.16.0–6.1.65

linuxlinux_kernelRange6.2.0–6.6.4

linuxlinux_kernelRange6.7.0≥

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/s390/block/dasd.c"
    ],
    "versions": [
      {
        "version": "4fa52aa7a82f",
        "lessThan": "ebdc569a07a3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4fa52aa7a82f",
        "lessThan": "f75617cc8df4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4fa52aa7a82f",
        "lessThan": "f1ac7789406e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4fa52aa7a82f",
        "lessThan": "c841de6247e9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4fa52aa7a82f",
        "lessThan": "6062c527d040",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4fa52aa7a82f",
        "lessThan": "dc96fde8fcb2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4fa52aa7a82f",
        "lessThan": "9372aab5d0ff",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4fa52aa7a82f",
        "lessThan": "db46cd1e0426",
        "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/s390/block/dasd.c"
    ],
    "versions": [
      {
        "version": "3.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.1",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.332",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.301",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.263",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.203",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.141",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.65",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.4",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.7",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]