{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53148","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.387Z","datePublished":"2026-06-25T08:38:34.208Z","dateUpdated":"2026-07-09T12:10:03.278Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-25T08:38:34.208Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Clamp XDomain response data copy to allocation size\n\ntb_xdp_properties_request() derives the per-packet copy length from\nthe response header without checking that it fits in the previously\nallocated data buffer.  A malicious peer can set its length field\nlarger than the declared data_length, causing memcpy to write past\nthe kcalloc allocation.\n\nClamp the per-packet copy length so that the cumulative offset\nnever exceeds data_len."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/thunderbolt/xdomain.c"],"versions":[{"version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","lessThan":"0b334279a82d79fb4723bd4f614305de1ab69caa","status":"affected","versionType":"git"},{"version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","lessThan":"6021d39ccd979713b39b980286020d8f9a45efd1","status":"affected","versionType":"git"},{"version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","lessThan":"89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0d","status":"affected","versionType":"git"},{"version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","lessThan":"5db10c8ad8c09f72c847dfeef3d876098257f505","status":"affected","versionType":"git"},{"version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","lessThan":"05a43157676c243c248d1c6d9dcecbe6eba2f35d","status":"affected","versionType":"git"},{"version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","lessThan":"fcbd0cdab92838854a5818be7ed8a097164ef6d5","status":"affected","versionType":"git"},{"version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","lessThan":"906035d5c3784570191d259cbf9a0ac1617852b5","status":"affected","versionType":"git"},{"version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","lessThan":"322e93448d908434ae5545660fcbe8f5a7a8e141","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/thunderbolt/xdomain.c"],"versions":[{"version":"4.15","status":"affected"},{"version":"0","lessThan":"4.15","status":"unaffected","versionType":"semver"},{"version":"5.10.259","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.210","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.143","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.94","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.36","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.13","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":"4.15","versionEndExcluding":"5.10.259"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.15.210"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.12.94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.18.36"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0b334279a82d79fb4723bd4f614305de1ab69caa"},{"url":"https://git.kernel.org/stable/c/6021d39ccd979713b39b980286020d8f9a45efd1"},{"url":"https://git.kernel.org/stable/c/89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0d"},{"url":"https://git.kernel.org/stable/c/5db10c8ad8c09f72c847dfeef3d876098257f505"},{"url":"https://git.kernel.org/stable/c/05a43157676c243c248d1c6d9dcecbe6eba2f35d"},{"url":"https://git.kernel.org/stable/c/fcbd0cdab92838854a5818be7ed8a097164ef6d5"},{"url":"https://git.kernel.org/stable/c/906035d5c3784570191d259cbf9a0ac1617852b5"},{"url":"https://git.kernel.org/stable/c/322e93448d908434ae5545660fcbe8f5a7a8e141"}],"title":"thunderbolt: Clamp XDomain response data copy to allocation size","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"affected":[{"cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"},{"cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"},{"cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"},{"cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"},{"cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}],"datePublic":"2026-06-25T00:00:00.000Z","descriptions":[{"lang":"en","value":"A flaw was found in the Linux kernel's Thunderbolt driver. A malicious peer can exploit this vulnerability by sending a specially crafted response that causes the system to write data beyond an allocated memory buffer. This out-of-bounds write can lead to memory corruption, which may allow an attacker to cause a denial of service or potentially execute arbitrary code."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","description":"Out-of-bounds Write","lang":"en","type":"CWE"}]}],"references":[{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-53148"},{"name":"RHBZ#2492756","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492756"},{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53148.json"}],"timeline":[{"lang":"en","time":"2026-06-25T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-06-25T00:00:00.000Z","value":"Made public."}],"title":"kernel: thunderbolt: Clamp XDomain response data copy to allocation size","x_adpType":"supplier","x_generator":{"engine":"sadp-cli 1.0.0"},"providerMetadata":{"orgId":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","shortName":"redhat-SADP","dateUpdated":"2026-07-09T12:10:03.278Z"}}]}}