CVE-2022-50094 (GCVE-0-2022-50094)
Vulnerability from cvelistv5
Published
2025-06-18 11:02
Modified
2025-06-18 11:02
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: spmi: trace: fix stack-out-of-bound access in SPMI tracing functions trace_spmi_write_begin() and trace_spmi_read_end() both call memcpy() with a length of "len + 1". This leads to one extra byte being read beyond the end of the specified buffer. Fix this out-of-bound memory access by using a length of "len" instead. Here is a KASAN log showing the issue: BUG: KASAN: stack-out-of-bounds in trace_event_raw_event_spmi_read_end+0x1d0/0x234 Read of size 2 at addr ffffffc0265b7540 by task thermal@2.0-ser/1314 ... Call trace: dump_backtrace+0x0/0x3e8 show_stack+0x2c/0x3c dump_stack_lvl+0xdc/0x11c print_address_description+0x74/0x384 kasan_report+0x188/0x268 kasan_check_range+0x270/0x2b0 memcpy+0x90/0xe8 trace_event_raw_event_spmi_read_end+0x1d0/0x234 spmi_read_cmd+0x294/0x3ac spmi_ext_register_readl+0x84/0x9c regmap_spmi_ext_read+0x144/0x1b0 [regmap_spmi] _regmap_raw_read+0x40c/0x754 regmap_raw_read+0x3a0/0x514 regmap_bulk_read+0x418/0x494 adc5_gen3_poll_wait_hs+0xe8/0x1e0 [qcom_spmi_adc5_gen3] ... __arm64_sys_read+0x4c/0x60 invoke_syscall+0x80/0x218 el0_svc_common+0xec/0x1c8 ... addr ffffffc0265b7540 is located in stack of task thermal@2.0-ser/1314 at offset 32 in frame: adc5_gen3_poll_wait_hs+0x0/0x1e0 [qcom_spmi_adc5_gen3] this frame has 1 object: [32, 33) 'status' Memory state around the buggy address: ffffffc0265b7400: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 ffffffc0265b7480: 04 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 >ffffffc0265b7500: 00 00 00 00 f1 f1 f1 f1 01 f3 f3 f3 00 00 00 00 ^ ffffffc0265b7580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffc0265b7600: f1 f1 f1 f1 01 f2 07 f2 f2 f2 01 f3 00 00 00 00 ==================================================================
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1e0ca3d809c36ad3d1f542917718fc22ec6316e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2af28b241eea816e6f7668d1954f15894b45d7e3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/37690cb8662cec672cacda19e6e4fd2ca7b13f0b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/504090815c1ad3fd3fa34618b54d706727f8911c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80f7c93e573ea9f524924bb529c2af8cb28b1c43
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac730c72bddc889f5610d51d8a7abf425e08da1a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bcc1b6b1ed3f42ed25858c1f1eb24a2f741db93f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dc6033a7761254e5a5ba7df36b64db787a53313c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd02510fb43168310abfd0b9ccf49993a722fb91
Impacted products
Vendor Product Version
Linux Linux Version: a9fce374815d8ab94a3e6259802a944e2cc21408
Version: a9fce374815d8ab94a3e6259802a944e2cc21408
Version: a9fce374815d8ab94a3e6259802a944e2cc21408
Version: a9fce374815d8ab94a3e6259802a944e2cc21408
Version: a9fce374815d8ab94a3e6259802a944e2cc21408
Version: a9fce374815d8ab94a3e6259802a944e2cc21408
Version: a9fce374815d8ab94a3e6259802a944e2cc21408
Version: a9fce374815d8ab94a3e6259802a944e2cc21408
Version: a9fce374815d8ab94a3e6259802a944e2cc21408
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   Linux Linux Version: 4.3
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/trace/events/spmi.h"
          ],
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          "vendor": "Linux",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "version": "4.3"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "4.9.326",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "4.14.291",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "4.19.256",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.211",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.137",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.61",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.326",
                  "versionStartIncluding": "4.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.291",
                  "versionStartIncluding": "4.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.256",
                  "versionStartIncluding": "4.3",
                  "vulnerable": true
                },
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                  "versionEndExcluding": "5.4.211",
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                  "vulnerable": true
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                {
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                  "versionEndExcluding": "5.10.137",
                  "versionStartIncluding": "4.3",
                  "vulnerable": true
                },
                {
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.18",
                  "versionStartIncluding": "4.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.2",
                  "versionStartIncluding": "4.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "4.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspmi: trace: fix stack-out-of-bound access in SPMI tracing functions\n\ntrace_spmi_write_begin() and trace_spmi_read_end() both call\nmemcpy() with a length of \"len + 1\".  This leads to one extra\nbyte being read beyond the end of the specified buffer.  Fix\nthis out-of-bound memory access by using a length of \"len\"\ninstead.\n\nHere is a KASAN log showing the issue:\n\nBUG: KASAN: stack-out-of-bounds in trace_event_raw_event_spmi_read_end+0x1d0/0x234\nRead of size 2 at addr ffffffc0265b7540 by task thermal@2.0-ser/1314\n...\nCall trace:\n dump_backtrace+0x0/0x3e8\n show_stack+0x2c/0x3c\n dump_stack_lvl+0xdc/0x11c\n print_address_description+0x74/0x384\n kasan_report+0x188/0x268\n kasan_check_range+0x270/0x2b0\n memcpy+0x90/0xe8\n trace_event_raw_event_spmi_read_end+0x1d0/0x234\n spmi_read_cmd+0x294/0x3ac\n spmi_ext_register_readl+0x84/0x9c\n regmap_spmi_ext_read+0x144/0x1b0 [regmap_spmi]\n _regmap_raw_read+0x40c/0x754\n regmap_raw_read+0x3a0/0x514\n regmap_bulk_read+0x418/0x494\n adc5_gen3_poll_wait_hs+0xe8/0x1e0 [qcom_spmi_adc5_gen3]\n ...\n __arm64_sys_read+0x4c/0x60\n invoke_syscall+0x80/0x218\n el0_svc_common+0xec/0x1c8\n ...\n\naddr ffffffc0265b7540 is located in stack of task thermal@2.0-ser/1314 at offset 32 in frame:\n adc5_gen3_poll_wait_hs+0x0/0x1e0 [qcom_spmi_adc5_gen3]\n\nthis frame has 1 object:\n [32, 33) \u0027status\u0027\n\nMemory state around the buggy address:\n ffffffc0265b7400: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1\n ffffffc0265b7480: 04 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00\n\u003effffffc0265b7500: 00 00 00 00 f1 f1 f1 f1 01 f3 f3 f3 00 00 00 00\n                                           ^\n ffffffc0265b7580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffffffc0265b7600: f1 f1 f1 f1 01 f2 07 f2 f2 f2 01 f3 00 00 00 00\n=================================================================="
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:02:32.591Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/80f7c93e573ea9f524924bb529c2af8cb28b1c43"
        },
        {
          "url": "https://git.kernel.org/stable/c/dc6033a7761254e5a5ba7df36b64db787a53313c"
        },
        {
          "url": "https://git.kernel.org/stable/c/ac730c72bddc889f5610d51d8a7abf425e08da1a"
        },
        {
          "url": "https://git.kernel.org/stable/c/37690cb8662cec672cacda19e6e4fd2ca7b13f0b"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd02510fb43168310abfd0b9ccf49993a722fb91"
        },
        {
          "url": "https://git.kernel.org/stable/c/1e0ca3d809c36ad3d1f542917718fc22ec6316e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/bcc1b6b1ed3f42ed25858c1f1eb24a2f741db93f"
        },
        {
          "url": "https://git.kernel.org/stable/c/504090815c1ad3fd3fa34618b54d706727f8911c"
        },
        {
          "url": "https://git.kernel.org/stable/c/2af28b241eea816e6f7668d1954f15894b45d7e3"
        }
      ],
      "title": "spmi: trace: fix stack-out-of-bound access in SPMI tracing functions",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50094",
    "datePublished": "2025-06-18T11:02:32.591Z",
    "dateReserved": "2025-06-18T10:57:27.411Z",
    "dateUpdated": "2025-06-18T11:02:32.591Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50094\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:38.620\",\"lastModified\":\"2025-06-18T13:47:40.833\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nspmi: trace: fix stack-out-of-bound access in SPMI tracing functions\\n\\ntrace_spmi_write_begin() and trace_spmi_read_end() both call\\nmemcpy() with a length of \\\"len + 1\\\".  This leads to one extra\\nbyte being read beyond the end of the specified buffer.  Fix\\nthis out-of-bound memory access by using a length of \\\"len\\\"\\ninstead.\\n\\nHere is a KASAN log showing the issue:\\n\\nBUG: KASAN: stack-out-of-bounds in trace_event_raw_event_spmi_read_end+0x1d0/0x234\\nRead of size 2 at addr ffffffc0265b7540 by task thermal@2.0-ser/1314\\n...\\nCall trace:\\n dump_backtrace+0x0/0x3e8\\n show_stack+0x2c/0x3c\\n dump_stack_lvl+0xdc/0x11c\\n print_address_description+0x74/0x384\\n kasan_report+0x188/0x268\\n kasan_check_range+0x270/0x2b0\\n memcpy+0x90/0xe8\\n trace_event_raw_event_spmi_read_end+0x1d0/0x234\\n spmi_read_cmd+0x294/0x3ac\\n spmi_ext_register_readl+0x84/0x9c\\n regmap_spmi_ext_read+0x144/0x1b0 [regmap_spmi]\\n _regmap_raw_read+0x40c/0x754\\n regmap_raw_read+0x3a0/0x514\\n regmap_bulk_read+0x418/0x494\\n adc5_gen3_poll_wait_hs+0xe8/0x1e0 [qcom_spmi_adc5_gen3]\\n ...\\n __arm64_sys_read+0x4c/0x60\\n invoke_syscall+0x80/0x218\\n el0_svc_common+0xec/0x1c8\\n ...\\n\\naddr ffffffc0265b7540 is located in stack of task thermal@2.0-ser/1314 at offset 32 in frame:\\n adc5_gen3_poll_wait_hs+0x0/0x1e0 [qcom_spmi_adc5_gen3]\\n\\nthis frame has 1 object:\\n [32, 33) \u0027status\u0027\\n\\nMemory state around the buggy address:\\n ffffffc0265b7400: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1\\n ffffffc0265b7480: 04 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00\\n\u003effffffc0265b7500: 00 00 00 00 f1 f1 f1 f1 01 f3 f3 f3 00 00 00 00\\n                                           ^\\n ffffffc0265b7580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\\n ffffffc0265b7600: f1 f1 f1 f1 01 f2 07 f2 f2 f2 01 f3 00 00 00 00\\n==================================================================\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1e0ca3d809c36ad3d1f542917718fc22ec6316e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2af28b241eea816e6f7668d1954f15894b45d7e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/37690cb8662cec672cacda19e6e4fd2ca7b13f0b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/504090815c1ad3fd3fa34618b54d706727f8911c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/80f7c93e573ea9f524924bb529c2af8cb28b1c43\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ac730c72bddc889f5610d51d8a7abf425e08da1a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bcc1b6b1ed3f42ed25858c1f1eb24a2f741db93f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dc6033a7761254e5a5ba7df36b64db787a53313c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dd02510fb43168310abfd0b9ccf49993a722fb91\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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