CVE-2024-27396

2024-05-1415:12:27

Linux

web.nvd.nist.gov

1565

linux

kernel

net

gtp

use-after-free

vulnerability

AI Score

6.5

Confidence

Low

EPSS

Percentile

13.0%

JSON

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

net: gtp: Fix Use-After-Free in gtp_dellink

Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal
of gtp_dellink, is not part of the RCU read critical section, it
is possible that the RCU grace period will pass during the traversal and
the key will be free.

To prevent this, it should be changed to hlist_for_each_entry_safe.

Affected configurations

Vulners

Node

linuxlinux_kernelRange5.5–4.19.313

linuxlinux_kernelRange4.20.0–5.4.275

linuxlinux_kernelRange5.5.0–5.10.216

linuxlinux_kernelRange5.11.0–5.15.158

linuxlinux_kernelRange5.16.0–6.1.90

linuxlinux_kernelRange6.2.0–6.6.30

linuxlinux_kernelRange6.7.0–6.8.9

linuxlinux_kernelRange6.9.0≥

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/gtp.c"
    ],
    "versions": [
      {
        "version": "043a283d24f4",
        "lessThan": "07b20d0a3dc1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c185e1d6e275",
        "lessThan": "718df1bc226c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "94dc550a5062",
        "lessThan": "0caff3e6390f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "94dc550a5062",
        "lessThan": "2e74b3fd6bf5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "94dc550a5062",
        "lessThan": "25a1c2d4b1fc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "94dc550a5062",
        "lessThan": "2aacd4de4547",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "94dc550a5062",
        "lessThan": "cd957d1716ec",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "94dc550a5062",
        "lessThan": "f2a904107ee2",
        "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/gtp.c"
    ],
    "versions": [
      {
        "version": "5.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.5",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.313",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.275",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.216",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.158",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.90",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.30",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.9",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]