cve-2022-49001
Vulnerability from cvelistv5
Published
2024-10-21 20:06
Modified
2024-12-19 08:12
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: riscv: fix race when vmap stack overflow Currently, when detecting vmap stack overflow, riscv firstly switches to the so called shadow stack, then use this shadow stack to call the get_overflow_stack() to get the overflow stack. However, there's a race here if two or more harts use the same shadow stack at the same time. To solve this race, we introduce spin_shadow_stack atomic var, which will be swap between its own address and 0 in atomic way, when the var is set, it means the shadow_stack is being used; when the var is cleared, it means the shadow_stack isn't being used. [Palmer: Add AQ to the swap, and also some comments.]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7e1864332fbc1b993659eab7974da9fe8bf8c128Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/879fabc5a95401d9bce357e4b1d24ae4a360a81fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac00301adb19df54f2eae1efc4bad7447c0156cePatch
Impacted products
Vendor Product Version
Linux Linux Version: 31da94c25aea835ceac00575a9fd206c5a833fed
Version: 31da94c25aea835ceac00575a9fd206c5a833fed
Version: 31da94c25aea835ceac00575a9fd206c5a833fed
 Create a notification for this product.
   Linux Linux Version: 5.14
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
   containers: {
      adp: [
         {
            metrics: [
               {
                  other: {
                     content: {
                        id: "CVE-2022-49001",
                        options: [
                           {
                              Exploitation: "none",
                           },
                           {
                              Automatable: "no",
                           },
                           {
                              "Technical Impact": "partial",
                           },
                        ],
                        role: "CISA Coordinator",
                        timestamp: "2024-10-22T13:15:10.722004Z",
                        version: "2.0.3",
                     },
                     type: "ssvc",
                  },
               },
            ],
            providerMetadata: {
               dateUpdated: "2024-10-22T13:18:40.637Z",
               orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0",
               shortName: "CISA-ADP",
            },
            title: "CISA ADP Vulnrichment",
         },
      ],
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "arch/riscv/include/asm/asm.h",
                  "arch/riscv/kernel/entry.S",
                  "arch/riscv/kernel/traps.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "ac00301adb19df54f2eae1efc4bad7447c0156ce",
                     status: "affected",
                     version: "31da94c25aea835ceac00575a9fd206c5a833fed",
                     versionType: "git",
                  },
                  {
                     lessThan: "879fabc5a95401d9bce357e4b1d24ae4a360a81f",
                     status: "affected",
                     version: "31da94c25aea835ceac00575a9fd206c5a833fed",
                     versionType: "git",
                  },
                  {
                     lessThan: "7e1864332fbc1b993659eab7974da9fe8bf8c128",
                     status: "affected",
                     version: "31da94c25aea835ceac00575a9fd206c5a833fed",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "arch/riscv/include/asm/asm.h",
                  "arch/riscv/kernel/entry.S",
                  "arch/riscv/kernel/traps.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "5.14",
                  },
                  {
                     lessThan: "5.14",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "5.15.*",
                     status: "unaffected",
                     version: "5.15.82",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.0.*",
                     status: "unaffected",
                     version: "6.0.12",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.1",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: fix race when vmap stack overflow\n\nCurrently, when detecting vmap stack overflow, riscv firstly switches\nto the so called shadow stack, then use this shadow stack to call the\nget_overflow_stack() to get the overflow stack. However, there's\na race here if two or more harts use the same shadow stack at the same\ntime.\n\nTo solve this race, we introduce spin_shadow_stack atomic var, which\nwill be swap between its own address and 0 in atomic way, when the\nvar is set, it means the shadow_stack is being used; when the var\nis cleared, it means the shadow_stack isn't being used.\n\n[Palmer: Add AQ to the swap, and also some comments.]",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T08:12:12.917Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/ac00301adb19df54f2eae1efc4bad7447c0156ce",
            },
            {
               url: "https://git.kernel.org/stable/c/879fabc5a95401d9bce357e4b1d24ae4a360a81f",
            },
            {
               url: "https://git.kernel.org/stable/c/7e1864332fbc1b993659eab7974da9fe8bf8c128",
            },
         ],
         title: "riscv: fix race when vmap stack overflow",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2022-49001",
      datePublished: "2024-10-21T20:06:15.443Z",
      dateReserved: "2024-08-22T01:27:53.642Z",
      dateUpdated: "2024-12-19T08:12:12.917Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2022-49001\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T20:15:11.773\",\"lastModified\":\"2024-10-30T18:58:53.863\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nriscv: fix race when vmap stack overflow\\n\\nCurrently, when detecting vmap stack overflow, riscv firstly switches\\nto the so called shadow stack, then use this shadow stack to call the\\nget_overflow_stack() to get the overflow stack. However, there's\\na race here if two or more harts use the same shadow stack at the same\\ntime.\\n\\nTo solve this race, we introduce spin_shadow_stack atomic var, which\\nwill be swap between its own address and 0 in atomic way, when the\\nvar is set, it means the shadow_stack is being used; when the var\\nis cleared, it means the shadow_stack isn't being used.\\n\\n[Palmer: Add AQ to the swap, and also some comments.]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: riscv: arregla la ejecución cuando se desborda la pila de vmap Actualmente, al detectar un desbordamiento de la pila de vmap, riscv primero cambia a la llamada pila de sombra, luego usa esta pila de sombra para llamar a get_overflow_stack() para obtener la pila de desbordamiento. Sin embargo, aquí hay una ejecución si dos o más harts usan la misma pila de sombra al mismo tiempo. Para resolver esta ejecución, introducimos la variable atómica spin_shadow_stack, que se intercambiará entre su propia dirección y 0 de forma atómica, cuando la variable está configurada, significa que se está usando shadow_stack; cuando la variable se borra, significa que no se está usando shadow_stack. [Palmer: Agrega AQ al intercambio y también algunos comentarios].\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-362\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.14\",\"versionEndExcluding\":\"5.15.82\",\"matchCriteriaId\":\"6B49AE96-FD69-40D4-A29C-DC4DB7DE3CDB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.12\",\"matchCriteriaId\":\"D6D56E90-F3EE-413D-B3E2-B518932F0C7D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F0B248-42CF-4AE6-A469-BB1BAE7F4705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2422816-0C14-4B5E-A1E6-A9D776E5C49B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"35B26BE4-43A6-4A36-A7F6-5B3F572D9186\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"3FFFB0B3-930D-408A-91E2-BAE0C2715D80\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"8535320E-A0DB-4277-800E-D0CE5BBA59E8\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7e1864332fbc1b993659eab7974da9fe8bf8c128\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/879fabc5a95401d9bce357e4b1d24ae4a360a81f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac00301adb19df54f2eae1efc4bad7447c0156ce\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
      vulnrichment: {
         containers: "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49001\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:15:10.722004Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:15:13.797Z\"}}], \"cna\": {\"title\": \"riscv: fix race when vmap stack overflow\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"31da94c25aea835ceac00575a9fd206c5a833fed\", \"lessThan\": \"ac00301adb19df54f2eae1efc4bad7447c0156ce\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"31da94c25aea835ceac00575a9fd206c5a833fed\", \"lessThan\": \"879fabc5a95401d9bce357e4b1d24ae4a360a81f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"31da94c25aea835ceac00575a9fd206c5a833fed\", \"lessThan\": \"7e1864332fbc1b993659eab7974da9fe8bf8c128\", \"versionType\": \"git\"}], \"programFiles\": [\"arch/riscv/include/asm/asm.h\", \"arch/riscv/kernel/entry.S\", \"arch/riscv/kernel/traps.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.14\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.14\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.82\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"arch/riscv/include/asm/asm.h\", \"arch/riscv/kernel/entry.S\", \"arch/riscv/kernel/traps.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/ac00301adb19df54f2eae1efc4bad7447c0156ce\"}, {\"url\": \"https://git.kernel.org/stable/c/879fabc5a95401d9bce357e4b1d24ae4a360a81f\"}, {\"url\": \"https://git.kernel.org/stable/c/7e1864332fbc1b993659eab7974da9fe8bf8c128\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nriscv: fix race when vmap stack overflow\\n\\nCurrently, when detecting vmap stack overflow, riscv firstly switches\\nto the so called shadow stack, then use this shadow stack to call the\\nget_overflow_stack() to get the overflow stack. However, there's\\na race here if two or more harts use the same shadow stack at the same\\ntime.\\n\\nTo solve this race, we introduce spin_shadow_stack atomic var, which\\nwill be swap between its own address and 0 in atomic way, when the\\nvar is set, it means the shadow_stack is being used; when the var\\nis cleared, it means the shadow_stack isn't being used.\\n\\n[Palmer: Add AQ to the swap, and also some comments.]\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T08:12:12.917Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2022-49001\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T08:12:12.917Z\", \"dateReserved\": \"2024-08-22T01:27:53.642Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T20:06:15.443Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.