{"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":"2026-06-14T17:58:39.543Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-14T17:58:39.543Z"},"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."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":9.1,"baseSeverity":"CRITICAL"}}],"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","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"}]}]}],"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"}}}}