CVE-2023-52567

2024-03-0222:15:49

Linux

web.nvd.nist.gov

cve

linux kernel

vulnerability

serial

8250_port

security fix

AI Score

Confidence

Low

EPSS

Percentile

13.0%

JSON

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

serial: 8250_port: Check IRQ data before use

In case the leaf driver wants to use IRQ polling (irq = 0) and
IIR register shows that an interrupt happened in the 8250 hardware
the IRQ data can be NULL. In such a case we need to skip the wake
event as we came to this path from the timer interrupt and quite
likely system is already awake.

Without this fix we have got an Oops:

serial8250: ttyS0 at I/O 0x3f8 (irq = 0, base_baud = 115200) is a 16550A
...
BUG: kernel NULL pointer dereference, address: 0000000000000010
RIP: 0010:serial8250_handle_irq+0x7c/0x240
Call Trace:
 ? serial8250_handle_irq+0x7c/0x240
 ? __pfx_serial8250_timeout+0x10/0x10

Affected configurations

Vulners

Node

linuxlinux_kernelRange6.4–4.14.327

linuxlinux_kernelRange4.15.0–4.19.296

linuxlinux_kernelRange4.20.0–5.4.258

linuxlinux_kernelRange5.5.0–5.10.198

linuxlinux_kernelRange5.11.0–5.15.134

linuxlinux_kernelRange5.16.0–6.1.56

linuxlinux_kernelRange6.2.0–6.5.6

linuxlinux_kernelRange6.6.0≥

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/tty/serial/8250/8250_port.c"
    ],
    "versions": [
      {
        "version": "edfe57aedff4",
        "lessThan": "ee5732caaffb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0bd49a043c79",
        "lessThan": "c334650150c2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "572d48361aa0",
        "lessThan": "bf3c728e3692",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d5d628fea5f6",
        "lessThan": "e14afa4450cb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "424cf2929635",
        "lessThan": "2b837f13a818",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "727e92fe13e8",
        "lessThan": "e14f68a48fd4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0ba9e3a13c6a",
        "lessThan": "3345cc5f02f1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0ba9e3a13c6a",
        "lessThan": "cce7fc8b2996",
        "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/tty/serial/8250/8250_port.c"
    ],
    "versions": [
      {
        "version": "6.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.4",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.327",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.296",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.258",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.198",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.134",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.56",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.5.6",
        "lessThanOrEqual": "6.5.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]