CVE-2022-48635

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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()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/dax.c"], "versions": [{"version": "8df4919cb921b28809d05feae3e98dc5d8b48146", "lessThan": "463f36137c40342fb03bba380c1bf703c40d89a6", "status": "affected", "versionType": "git"}, {"version": "ca289e0b95afa973d204c77a4ad5c37e06145fbf", "lessThan": "929ef155e1da41c06f4d8ca86ae12b851a83a744", "status": "affected", "versionType": "git"}, {"version": "ca289e0b95afa973d204c77a4ad5c37e06145fbf", "lessThan": "60644dffac87b1bb47bdb393aa29d5f2ffcf41a0", "status": "affected", "versionType": "git"}, {"version": "ca289e0b95afa973d204c77a4ad5c37e06145fbf", "lessThan": "17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/dax.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.71", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.12", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0", "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": "5.15", "versionEndExcluding": "5.15.71"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "5.19.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.0"}]}]}], "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"}], "title": "fsdax: Fix infinite loop in dax_iomap_rw()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "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 ('Infinite Loop')"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:16:39.520Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:17:55.386Z"}, "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"]}]}]}}

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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()."}], "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": "2026-05-11T18:44:10.998Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48635", "state": "PUBLISHED", "dateUpdated": "2026-05-11T18:44:10.998Z", "dateReserved": "2024-02-25T13:44:28.315Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-04-28T12:59:24.359Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/dax.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "463f36137c40342fb03bba380c1bf703c40d89a6", "status": "affected", "version": "8df4919cb921b28809d05feae3e98dc5d8b48146", "versionType": "git"}, {"lessThan": "929ef155e1da41c06f4d8ca86ae12b851a83a744", "status": "affected", "version": "ca289e0b95afa973d204c77a4ad5c37e06145fbf", "versionType": "git"}, {"lessThan": "60644dffac87b1bb47bdb393aa29d5f2ffcf41a0", "status": "affected", "version": "ca289e0b95afa973d204c77a4ad5c37e06145fbf", "versionType": "git"}, {"lessThan": "17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3", "status": "affected", "version": "ca289e0b95afa973d204c77a4ad5c37e06145fbf", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/dax.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"lessThan": "5.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.71", "versionType": "semver"}, {"lessThanOrEqual": "5.19.*", "status": "unaffected", "version": "5.19.12", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"affectedData": [{"cpes": ["cpe:2.3:o:linux:linux_kernel:5.15:-:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"status": "affected", "version": "5.15"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:ca289e0b95af:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"lessThan": "17d9c15c9b9e", "status": "affected", "version": "ca289e0b95af", "versionType": "custom"}]}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CA574867-6574-44D7-B365-96D57A9704AF", "versionEndExcluding": "5.15.71", "versionStartIncluding": "5.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "03B0F56B-C5CC-4E81-BB51-D07D569DE4CA", "versionEndExcluding": "5.19.12", "versionStartIncluding": "5.16", "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", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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 <TASK>\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()."}, {"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()."}], "id": "CVE-2022-48635", "lastModified": "2026-06-17T05:15:46.887", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-48635", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-14T20:43:30.986785Z", "version": "2.0.3"}}]}, "published": "2024-04-28T13:15:06.663", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/17d9c15c9b9e7fb285f7ac5367dfb5f00ff575e3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/463f36137c40342fb03bba380c1bf703c40d89a6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "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": "af854a3a-2127-422b-91ae-364da2661108", "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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: fsdax: Fix infinite loop in dax_iomap_rw()", "id": "2277835", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2277835"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-835", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfsdax: Fix infinite loop in dax_iomap_rw()\nI got an infinite loop and a WARNING report when executing a tail command\nin virtiofs.\nWARNING: CPU: 10 PID: 964 at fs/iomap/iter.c:34 iomap_iter+0x3a2/0x3d0\nModules linked in:\nCPU: 10 PID: 964 Comm: tail Not tainted 5.19.0-rc7\nCall Trace:\n<TASK>\ndax_iomap_rw+0xea/0x620\n? __this_cpu_preempt_check+0x13/0x20\nfuse_dax_read_iter+0x47/0x80\nfuse_file_read_iter+0xae/0xd0\nnew_sync_read+0xfe/0x180\n? 0xffffffff81000000\nvfs_read+0x14d/0x1a0\nksys_read+0x6d/0xf0\n__x64_sys_read+0x1a/0x20\ndo_syscall_64+0x3b/0x90\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\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().\nFixing by checking count whether is 0 in dax_iomap_rw()."], "name": "CVE-2022-48635", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-04-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48635\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48635\nhttps://lore.kernel.org/linux-cve-announce/2024042854-CVE-2022-48635-6286@gregkh/T"], "threat_severity": "Low"}

{}