cve/published/2024/CVE-2024-56675.json

{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors\n\nUprobes always use bpf_prog_run_array_uprobe() under tasks-trace-RCU\nprotection. But it is possible to attach a non-sleepable BPF program to a\nuprobe, and non-sleepable BPF programs are freed via normal RCU (see\n__bpf_prog_put_noref()). This leads to UAF of the bpf_prog because a normal\nRCU grace period does not imply a tasks-trace-RCU grace period.\n\nFix it by explicitly waiting for a tasks-trace-RCU grace period after\nremoving the attachment of a bpf_prog to a perf_event."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/trace/bpf_trace.c"
               ],
               "versions": [
                  {
                     "version": "8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9",
                     "lessThan": "9245459a992d22fe0e92e988f49db1fec82c184a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9",
                     "lessThan": "f9f85df30118f3f4112761e6682fc60ebcce23e5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9",
                     "lessThan": "9b53d2c2a38a1effc341d99be3f99fa7ef17047d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9",
                     "lessThan": "ef1b808e3b7c98612feceedf985c2fbbeb28f956",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/trace/bpf_trace.c"
               ],
               "versions": [
                  {
                     "version": "6.0",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.0",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.1.121",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.6.67",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.12.6",
                     "lessThanOrEqual": "6.12.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.13",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.0",
                           "versionEndExcluding": "6.1.121"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.0",
                           "versionEndExcluding": "6.6.67"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.0",
                           "versionEndExcluding": "6.12.6"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.0",
                           "versionEndExcluding": "6.13"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/9245459a992d22fe0e92e988f49db1fec82c184a"
            },
            {
               "url": "https://git.kernel.org/stable/c/f9f85df30118f3f4112761e6682fc60ebcce23e5"
            },
            {
               "url": "https://git.kernel.org/stable/c/9b53d2c2a38a1effc341d99be3f99fa7ef17047d"
            },
            {
               "url": "https://git.kernel.org/stable/c/ef1b808e3b7c98612feceedf985c2fbbeb28f956"
            }
         ],
         "title": "bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors",
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      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-56675",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}