{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46155", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.102Z", "datePublished": "2026-05-28T09:36:11.092Z", "dateUpdated": "2026-05-28T09:36:11.092Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-28T09:36:11.092Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: fix out-of-bounds read in smb2_compound_op()\n\nIf a server sends a truncated response but a large OutputBufferLength, and\nterminates the EA list early, check_wsl_eas() returns success without\nvalidating that the entire OutputBufferLength fits within iov_len.\n\nThen smb2_compound_op() does:\n memcpy(idata->wsl.eas, data[0], size[0]);\n\nWhere size[0] is OutputBufferLength. If iov_len is smaller than size[0],\nmemcpy can read beyond the end of the rsp_iov allocation and leak adjacent\nkernel heap memory."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/smb2inode.c"], "versions": [{"version": "7449d736bbbd160c76b01b8fcdf72f58a8757d4b", "lessThan": "dffb44b2e06a2908e249f0f93156fc987eee1d1c", "status": "affected", "versionType": "git"}, {"version": "ea41367b2a602f602ea6594fc4a310520dcc64f4", "lessThan": "9b3af35645ff9cd334edc130249f9a2fb2bea25f", "status": "affected", "versionType": "git"}, {"version": "ea41367b2a602f602ea6594fc4a310520dcc64f4", "lessThan": "512d33bc8ea4ea5c19728ee118715f4b1f4d1926", "status": "affected", "versionType": "git"}, {"version": "ea41367b2a602f602ea6594fc4a310520dcc64f4", "lessThan": "a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c", "status": "affected", "versionType": "git"}, {"version": "ea41367b2a602f602ea6594fc4a310520dcc64f4", "lessThan": "8d09328dfda089675e4c049f3f256064a1d1996b", "status": "affected", "versionType": "git"}, {"version": "6.6.32", "lessThan": "6.6.140", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/smb2inode.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc3", "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": "6.6.32", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.12.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.1-rc3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/dffb44b2e06a2908e249f0f93156fc987eee1d1c"}, {"url": "https://git.kernel.org/stable/c/9b3af35645ff9cd334edc130249f9a2fb2bea25f"}, {"url": "https://git.kernel.org/stable/c/512d33bc8ea4ea5c19728ee118715f4b1f4d1926"}, {"url": "https://git.kernel.org/stable/c/a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c"}, {"url": "https://git.kernel.org/stable/c/8d09328dfda089675e4c049f3f256064a1d1996b"}], "title": "smb/client: fix out-of-bounds read in smb2_compound_op()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: fix out-of-bounds read in smb2_compound_op()\n\nIf a server sends a truncated response but a large OutputBufferLength, and\nterminates the EA list early, check_wsl_eas() returns success without\nvalidating that the entire OutputBufferLength fits within iov_len.\n\nThen smb2_compound_op() does:\n memcpy(idata->wsl.eas, data[0], size[0]);\n\nWhere size[0] is OutputBufferLength. If iov_len is smaller than size[0],\nmemcpy can read beyond the end of the rsp_iov allocation and leak adjacent\nkernel heap memory."}], "id": "CVE-2026-46155", "lastModified": "2026-05-28T13:44:01.663", "metrics": {}, "published": "2026-05-28T10:16:31.133", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/512d33bc8ea4ea5c19728ee118715f4b1f4d1926"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8d09328dfda089675e4c049f3f256064a1d1996b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9b3af35645ff9cd334edc130249f9a2fb2bea25f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dffb44b2e06a2908e249f0f93156fc987eee1d1c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7449d736bbbd160c76b01b8fcdf72f58a8757d4b,dffb44b2e06a2908e249f0f93156fc987eee1d1c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ea41367b2a602f602ea6594fc4a310520dcc64f4,9b3af35645ff9cd334edc130249f9a2fb2bea25f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ea41367b2a602f602ea6594fc4a310520dcc64f4,512d33bc8ea4ea5c19728ee118715f4b1f4d1926)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ea41367b2a602f602ea6594fc4a310520dcc64f4,a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ea41367b2a602f602ea6594fc4a310520dcc64f4,8d09328dfda089675e4c049f3f256064a1d1996b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.32,6.6.140)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.140,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.88,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.30,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.7,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-28T12:30:16.889752+00:00", "updated": "2026-05-28T13:15:20.670250+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-20", "CWE-122"]}