{"api_version":"1","generated_at":"2026-10-14T23:57:26+00:00","cve":"CVE-2025-68288","urls":{"html":"https://cve.report/CVE-2025-68288","api":"https://cve.report/api/cve/CVE-2025-68288.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-68288","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-68288"},"summary":{"title":"usb: storage: Fix memory leak in USB bulk transport","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: storage: Fix memory leak in USB bulk transport\n\nA kernel memory leak was identified by the 'ioctl_sg01' test from Linux\nTest Project (LTP). The following bytes were mainly observed: 0x53425355.\n\nWhen USB storage devices incorrectly skip the data phase with status data,\nthe code extracts/validates the CSW from the sg buffer, but fails to clear\nit afterwards. This leaves status protocol data in srb's transfer buffer,\nsuch as the US_BULK_CS_SIGN 'USBS' signature observed here. Thus, this can\nlead to USB protocols leaks to user space through SCSI generic (/dev/sg*)\ninterfaces, such as the one seen here when the LTP test requested 512 KiB.\n\nFix the leak by zeroing the CSW data in srb's transfer buffer immediately\nafter the validation of devices that skip data phase.\n\nNote: Differently from CVE-2018-1000204, which fixed a big leak by zero-\ning pages at allocation time, this leak occurs after allocation, when USB\nprotocol data is written to already-allocated sg pages.","state":"PUBLISHED","assigner":"Linux","published_at":"2025-12-16 16:16:07","updated_at":"2026-10-13 19:10:00"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/41e99fe2005182139b1058db71f0d241f8f0078c","name":"https://git.kernel.org/stable/c/41e99fe2005182139b1058db71f0d241f8f0078c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4ba515dfff7eeca369ab85cdbb3f3b231c71720c","name":"https://git.kernel.org/stable/c/4ba515dfff7eeca369ab85cdbb3f3b231c71720c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5b815ddb3f5560fac35b16de3a2a22d5f81c5993","name":"https://git.kernel.org/stable/c/5b815ddb3f5560fac35b16de3a2a22d5f81c5993","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/467fec3cefbeb9e3ea80f457da9a5666a71ca0d0","name":"https://git.kernel.org/stable/c/467fec3cefbeb9e3ea80f457da9a5666a71ca0d0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/83f0241959831586d9b6d47f6bd5d3dec8f43bf0","name":"https://git.kernel.org/stable/c/83f0241959831586d9b6d47f6bd5d3dec8f43bf0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0f18eac44c5668204bf6eebb01ddb369ac56932b","name":"https://git.kernel.org/stable/c/0f18eac44c5668204bf6eebb01ddb369ac56932b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cb1401b5bcc2feb5b038fc4b512e5968b016e05e","name":"https://git.kernel.org/stable/c/cb1401b5bcc2feb5b038fc4b512e5968b016e05e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-68288","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68288","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a45b599ad808c3c982fdcdc12b0b8611c2f92824 83f0241959831586d9b6d47f6bd5d3dec8f43bf0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a45b599ad808c3c982fdcdc12b0b8611c2f92824 4ba515dfff7eeca369ab85cdbb3f3b231c71720c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a45b599ad808c3c982fdcdc12b0b8611c2f92824 467fec3cefbeb9e3ea80f457da9a5666a71ca0d0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a45b599ad808c3c982fdcdc12b0b8611c2f92824 cb1401b5bcc2feb5b038fc4b512e5968b016e05e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a45b599ad808c3c982fdcdc12b0b8611c2f92824 0f18eac44c5668204bf6eebb01ddb369ac56932b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a45b599ad808c3c982fdcdc12b0b8611c2f92824 5b815ddb3f5560fac35b16de3a2a22d5f81c5993 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a45b599ad808c3c982fdcdc12b0b8611c2f92824 41e99fe2005182139b1058db71f0d241f8f0078c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 582802e7c617cfb07cc15f280c128e6decbc57b8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 58b7ce6f9ef2367f86384b20458642945993b816 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 93314640426ddb6af618d0802e622f6fa771792c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ad2518320bc440ed3db072e2444a1bb226a9cf7a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d827bea2d18c07ba514f7d48cde49f90da9a1384 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39169410574503c6e901de1aa6eac5108475e017 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.16.58 3.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.18.110 3.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.4.133 4.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.9.103 4.10 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.14.44 4.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.16.12 4.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.247 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.197 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.159 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.119 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.61 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17.11 6.17.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2025","cve_id":"68288","cve":"CVE-2025-68288","epss":"0.002050000","percentile":"0.097390000","score_date":"2026-10-13","updated_at":"2026-10-14 00:09:41"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/storage/transport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"83f0241959831586d9b6d47f6bd5d3dec8f43bf0","status":"affected","version":"a45b599ad808c3c982fdcdc12b0b8611c2f92824","versionType":"git"},{"lessThan":"4ba515dfff7eeca369ab85cdbb3f3b231c71720c","status":"affected","version":"a45b599ad808c3c982fdcdc12b0b8611c2f92824","versionType":"git"},{"lessThan":"467fec3cefbeb9e3ea80f457da9a5666a71ca0d0","status":"affected","version":"a45b599ad808c3c982fdcdc12b0b8611c2f92824","versionType":"git"},{"lessThan":"cb1401b5bcc2feb5b038fc4b512e5968b016e05e","status":"affected","version":"a45b599ad808c3c982fdcdc12b0b8611c2f92824","versionType":"git"},{"lessThan":"0f18eac44c5668204bf6eebb01ddb369ac56932b","status":"affected","version":"a45b599ad808c3c982fdcdc12b0b8611c2f92824","versionType":"git"},{"lessThan":"5b815ddb3f5560fac35b16de3a2a22d5f81c5993","status":"affected","version":"a45b599ad808c3c982fdcdc12b0b8611c2f92824","versionType":"git"},{"lessThan":"41e99fe2005182139b1058db71f0d241f8f0078c","status":"affected","version":"a45b599ad808c3c982fdcdc12b0b8611c2f92824","versionType":"git"},{"status":"affected","version":"582802e7c617cfb07cc15f280c128e6decbc57b8","versionType":"git"},{"status":"affected","version":"58b7ce6f9ef2367f86384b20458642945993b816","versionType":"git"},{"status":"affected","version":"93314640426ddb6af618d0802e622f6fa771792c","versionType":"git"},{"status":"affected","version":"ad2518320bc440ed3db072e2444a1bb226a9cf7a","versionType":"git"},{"status":"affected","version":"d827bea2d18c07ba514f7d48cde49f90da9a1384","versionType":"git"},{"status":"affected","version":"39169410574503c6e901de1aa6eac5108475e017","versionType":"git"},{"lessThan":"3.17","status":"affected","version":"3.16.58","versionType":"semver"},{"lessThan":"3.19","status":"affected","version":"3.18.110","versionType":"semver"},{"lessThan":"4.5","status":"affected","version":"4.4.133","versionType":"semver"},{"lessThan":"4.10","status":"affected","version":"4.9.103","versionType":"semver"},{"lessThan":"4.15","status":"affected","version":"4.14.44","versionType":"semver"},{"lessThan":"4.17","status":"affected","version":"4.16.12","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/storage/transport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.17"},{"lessThan":"4.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.247","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.197","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.159","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.119","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.61","versionType":"semver"},{"lessThanOrEqual":"6.17.*","status":"unaffected","version":"6.17.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.18","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.247","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.197","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.159","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.119","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.61","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.17.11","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16.58","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18.110","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4.133","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9.103","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.44","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: storage: Fix memory leak in USB bulk transport\n\nA kernel memory leak was identified by the 'ioctl_sg01' test from Linux\nTest Project (LTP). The following bytes were mainly observed: 0x53425355.\n\nWhen USB storage devices incorrectly skip the data phase with status data,\nthe code extracts/validates the CSW from the sg buffer, but fails to clear\nit afterwards. This leaves status protocol data in srb's transfer buffer,\nsuch as the US_BULK_CS_SIGN 'USBS' signature observed here. Thus, this can\nlead to USB protocols leaks to user space through SCSI generic (/dev/sg*)\ninterfaces, such as the one seen here when the LTP test requested 512 KiB.\n\nFix the leak by zeroing the CSW data in srb's transfer buffer immediately\nafter the validation of devices that skip data phase.\n\nNote: Differently from CVE-2018-1000204, which fixed a big leak by zero-\ning pages at allocation time, this leak occurs after allocation, when USB\nprotocol data is written to already-allocated sg pages."}],"providerMetadata":{"dateUpdated":"2026-05-23T16:02:31.659Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/83f0241959831586d9b6d47f6bd5d3dec8f43bf0"},{"url":"https://git.kernel.org/stable/c/4ba515dfff7eeca369ab85cdbb3f3b231c71720c"},{"url":"https://git.kernel.org/stable/c/467fec3cefbeb9e3ea80f457da9a5666a71ca0d0"},{"url":"https://git.kernel.org/stable/c/cb1401b5bcc2feb5b038fc4b512e5968b016e05e"},{"url":"https://git.kernel.org/stable/c/0f18eac44c5668204bf6eebb01ddb369ac56932b"},{"url":"https://git.kernel.org/stable/c/5b815ddb3f5560fac35b16de3a2a22d5f81c5993"},{"url":"https://git.kernel.org/stable/c/41e99fe2005182139b1058db71f0d241f8f0078c"}],"title":"usb: storage: Fix memory leak in USB bulk transport","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-68288","datePublished":"2025-12-16T15:06:09.654Z","dateReserved":"2025-12-16T14:48:05.292Z","dateUpdated":"2026-05-23T16:02:31.659Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-12-16 16:16:07","lastModifiedDate":"2026-10-13 19:10:00","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"68288","Ordinal":"1","Title":"usb: storage: Fix memory leak in USB bulk transport","CVE":"CVE-2025-68288","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"68288","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: storage: Fix memory leak in USB bulk transport\n\nA kernel memory leak was identified by the 'ioctl_sg01' test from Linux\nTest Project (LTP). The following bytes were mainly observed: 0x53425355.\n\nWhen USB storage devices incorrectly skip the data phase with status data,\nthe code extracts/validates the CSW from the sg buffer, but fails to clear\nit afterwards. This leaves status protocol data in srb's transfer buffer,\nsuch as the US_BULK_CS_SIGN 'USBS' signature observed here. Thus, this can\nlead to USB protocols leaks to user space through SCSI generic (/dev/sg*)\ninterfaces, such as the one seen here when the LTP test requested 512 KiB.\n\nFix the leak by zeroing the CSW data in srb's transfer buffer immediately\nafter the validation of devices that skip data phase.\n\nNote: Differently from CVE-2018-1000204, which fixed a big leak by zero-\ning pages at allocation time, this leak occurs after allocation, when USB\nprotocol data is written to already-allocated sg pages.","Type":"Description","Title":"usb: storage: Fix memory leak in USB bulk transport"}]}}}