CVE-2024-39489 ipv6: sr: fix memleak in seg6_hmac_init_algo

2024-07-1007:14:08

Linux

www.cve.org

cve-2024-39489

ipv6

seg6_hmac_init_algo

memleak

linux kernel

crypto tfms

EPSS

Percentile

5.0%

JSON

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

ipv6: sr: fix memleak in seg6_hmac_init_algo

seg6_hmac_init_algo returns without cleaning up the previous allocations
if one fails, so it’s going to leak all that memory and the crypto tfms.

Update seg6_hmac_exit to only free the memory when allocated, so we can
reuse the code directly.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/seg6_hmac.c"
    ],
    "versions": [
      {
        "version": "bf355b8d2c30",
        "lessThan": "afd5730969ae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf355b8d2c30",
        "lessThan": "4a3fcf53725b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf355b8d2c30",
        "lessThan": "daf341e0a231",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf355b8d2c30",
        "lessThan": "61d31ac85b45",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf355b8d2c30",
        "lessThan": "599a56542150",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf355b8d2c30",
        "lessThan": "0e44d6cbe8de",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf355b8d2c30",
        "lessThan": "f6a99ef4e056",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf355b8d2c30",
        "lessThan": "efb9f4f19f8e",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/seg6_hmac.c"
    ],
    "versions": [
      {
        "version": "4.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.10",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.316",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.278",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.219",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.161",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.93",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.33",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.4",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]