CVE-2022-48635 (GCVE-0-2022-48635)

Vulnerability from cvelistv5 – Published: 2024-04-28 12:59 – Updated: 2025-10-29 13:18
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: fsdax: Fix infinite loop in dax_iomap_rw() I got an infinite loop and a WARNING report when executing a tail command in virtiofs. WARNING: CPU: 10 PID: 964 at fs/iomap/iter.c:34 iomap_iter+0x3a2/0x3d0 Modules linked in: CPU: 10 PID: 964 Comm: tail Not tainted 5.19.0-rc7 Call Trace: <TASK> dax_iomap_rw+0xea/0x620 ? __this_cpu_preempt_check+0x13/0x20 fuse_dax_read_iter+0x47/0x80 fuse_file_read_iter+0xae/0xd0 new_sync_read+0xfe/0x180 ? 0xffffffff81000000 vfs_read+0x14d/0x1a0 ksys_read+0x6d/0xf0 __x64_sys_read+0x1a/0x20 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The tail command will call read() with a count of 0. In this case, iomap_iter() will report this WARNING, and always return 1 which casuing the infinite loop in dax_iomap_rw(). Fixing by checking count whether is 0 in dax_iomap_rw().
Severity ?
6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8df4919cb921b28809d05feae3e98dc5d8b48146 , < 463f36137c40342fb03bba380c1bf703c40d89a6 (git)
Affected: ca289e0b95afa973d204c77a4ad5c37e06145fbf , < 929ef155e1da41c06f4d8ca86ae12b851a83a744 (git)
Affected: ca289e0b95afa973d204c77a4ad5c37e06145fbf , < 60644dffac87b1bb47bdb393aa29d5f2ffcf41a0 (git)
Affected: ca289e0b95afa973d204c77a4ad5c37e06145fbf , < 17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3 (git)
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    Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.71 , ≤ 5.15.* (semver)
Unaffected: 5.19.12 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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In this case,\\niomap_iter() will report this WARNING, and always return 1 which casuing\\nthe infinite loop in dax_iomap_rw().\\n\\nFixing by checking count whether is 0 in dax_iomap_rw().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: fsdax: Reparar bucle infinito en dax_iomap_rw() Obtuve un bucle infinito y un informe de ADVERTENCIA al ejecutar un comando tail en virtiofs. ADVERTENCIA: CPU: 10 PID: 964 en fs/iomap/iter.c:34 iomap_iter+0x3a2/0x3d0 M\u00f3dulos vinculados en: CPU: 10 PID: 964 Comm: tail No contaminado 5.19.0-rc7 Seguimiento de llamadas:  dax_iomap_rw +0xea/0x620 ? __this_cpu_preempt_check+0x13/0x20 fuse_dax_read_iter+0x47/0x80 fuse_file_read_iter+0xae/0xd0 new_sync_read+0xfe/0x180 ? 0xffffffff81000000 vfs_read+0x14d/0x1a0 ksys_read+0x6d/0xf0 __x64_sys_read+0x1a/0x20 do_syscall_64+0x3b/0x90 Entry_SYSCALL_64_after_hwframe+0x63/0xcd El comando tail llamar\u00e1 a read() con un recuento de 0. En este caso, iomap_iter() informar\u00e1 esto ADVERTENCIA, y siempre devuelve 1, lo que provoca el bucle infinito en dax_iomap_rw(). Arreglando verificando el recuento si es 0 en dax_iomap_rw().\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.2,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.5,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-835\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.15\",\"versionEndExcluding\":\"5.15.71\",\"matchCriteriaId\":\"CA574867-6574-44D7-B365-96D57A9704AF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.19.12\",\"matchCriteriaId\":\"03B0F56B-C5CC-4E81-BB51-D07D569DE4CA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E8BD11A3-8643-49B6-BADE-5029A0117325\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"5F0AD220-F6A9-4012-8636-155F1B841FAD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"A46498B3-78E1-4623-AAE1-94D29A42BE4E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"F8446E87-F5F6-41CA-8201-BAE0F0CA6DD9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"8E5FB72F-67CE-43CC-83FE-541604D98182\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"3A0A7397-F5F8-4753-82DC-9A11288E696D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/463f36137c40342fb03bba380c1bf703c40d89a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/60644dffac87b1bb47bdb393aa29d5f2ffcf41a0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/929ef155e1da41c06f4d8ca86ae12b851a83a744\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/60644dffac87b1bb47bdb393aa29d5f2ffcf41a0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/929ef155e1da41c06f4d8ca86ae12b851a83a744\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/929ef155e1da41c06f4d8ca86ae12b851a83a744\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/60644dffac87b1bb47bdb393aa29d5f2ffcf41a0\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T15:17:55.386Z\"}}, {\"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.2, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48635\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-14T20:43:30.986785Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:5.15:-:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.15\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:ca289e0b95af:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"ca289e0b95af\", \"lessThan\": \"17d9c15c9b9e\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-835\", \"description\": \"CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-04-29T13:52:51.480Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"fsdax: Fix infinite loop in dax_iomap_rw()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"8df4919cb921b28809d05feae3e98dc5d8b48146\", \"lessThan\": \"463f36137c40342fb03bba380c1bf703c40d89a6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ca289e0b95afa973d204c77a4ad5c37e06145fbf\", \"lessThan\": \"929ef155e1da41c06f4d8ca86ae12b851a83a744\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ca289e0b95afa973d204c77a4ad5c37e06145fbf\", \"lessThan\": \"60644dffac87b1bb47bdb393aa29d5f2ffcf41a0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ca289e0b95afa973d204c77a4ad5c37e06145fbf\", \"lessThan\": \"17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/dax.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.71\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.19.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/dax.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/463f36137c40342fb03bba380c1bf703c40d89a6\"}, {\"url\": \"https://git.kernel.org/stable/c/929ef155e1da41c06f4d8ca86ae12b851a83a744\"}, {\"url\": \"https://git.kernel.org/stable/c/60644dffac87b1bb47bdb393aa29d5f2ffcf41a0\"}, {\"url\": \"https://git.kernel.org/stable/c/17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfsdax: Fix infinite loop in dax_iomap_rw()\\n\\nI got an infinite loop and a WARNING report when executing a tail command\\nin virtiofs.\\n\\n  WARNING: CPU: 10 PID: 964 at fs/iomap/iter.c:34 iomap_iter+0x3a2/0x3d0\\n  Modules linked in:\\n  CPU: 10 PID: 964 Comm: tail Not tainted 5.19.0-rc7\\n  Call Trace:\\n  \u003cTASK\u003e\\n  dax_iomap_rw+0xea/0x620\\n  ? __this_cpu_preempt_check+0x13/0x20\\n  fuse_dax_read_iter+0x47/0x80\\n  fuse_file_read_iter+0xae/0xd0\\n  new_sync_read+0xfe/0x180\\n  ? 0xffffffff81000000\\n  vfs_read+0x14d/0x1a0\\n  ksys_read+0x6d/0xf0\\n  __x64_sys_read+0x1a/0x20\\n  do_syscall_64+0x3b/0x90\\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nThe tail command will call read() with a count of 0. In this case,\\niomap_iter() will report this WARNING, and always return 1 which casuing\\nthe infinite loop in dax_iomap_rw().\\n\\nFixing by checking count whether is 0 in dax_iomap_rw().\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.71\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19.12\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0\", \"versionStartIncluding\": \"5.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-10-29T13:18:47.502Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48635\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-29T13:18:47.502Z\", \"dateReserved\": \"2024-02-25T13:44:28.315Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-28T12:59:24.359Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.