{"id":"CVE-2026-53021","state":"PUBLISHED","title":"scsi: target: core: Fix integer overflow in UNMAP bounds check","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: core: Fix integer overflow in UNMAP bounds check\n\nsbc_execute_unmap() checks LBA + range does not exceed the device capacity,\nbut does not guard against LBA + range wrapping around on 64-bit overflow.\n\nAdd an overflow check matching the pattern already used for WRITE_SAME in\nthe same file.","publishedAt":"2026-06-24T16:29:30.671Z","updatedAt":"2026-06-24T16:29:30.671Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"c08ab702c4699c6efb9d60bdb15b73e7a627ee7e","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"5efc3ef4758f8d98c257419fa21daca3227de61a","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"d7aef29573c7c5cdb2dfad939253287a6329c2a4","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"3facdecc3fcf115cc4f9b3d8f118d6705e2456a8","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"51075df70c46e60a9773f2dcd28299e40dac36fb","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"02115986d027ade793e7f6be87e91d6a796d0aa3","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"2bf2d65f76697820dbc4227d13866293576dd90a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/target/target_core_sbc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.10","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/target/target_core_sbc.c"]}],"references":["https://git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7e","https://git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd","https://git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61a","https://git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4","https://git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8","https://git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fb","https://git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3","https://git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53021.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53021","state":"PUBLISHED","datePublished":"2026-06-24T16:29:30.671Z","dateUpdated":"2026-06-24T16:29:30.671Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.379Z"},"containers":{"cna":{"title":"scsi: target: core: Fix integer overflow in UNMAP bounds check","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: core: Fix integer overflow in UNMAP bounds check\n\nsbc_execute_unmap() checks LBA + range does not exceed the device capacity,\nbut does not guard against LBA + range wrapping around on 64-bit overflow.\n\nAdd an overflow check matching the pattern already used for WRITE_SAME in\nthe same file."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"c08ab702c4699c6efb9d60bdb15b73e7a627ee7e","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"5efc3ef4758f8d98c257419fa21daca3227de61a","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"d7aef29573c7c5cdb2dfad939253287a6329c2a4","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"3facdecc3fcf115cc4f9b3d8f118d6705e2456a8","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"51075df70c46e60a9773f2dcd28299e40dac36fb","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"02115986d027ade793e7f6be87e91d6a796d0aa3","versionType":"git"},{"version":"86d7182985d25900929adce14fffd729cc8c6fb8","status":"affected","lessThan":"2bf2d65f76697820dbc4227d13866293576dd90a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/target/target_core_sbc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.10","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/target/target_core_sbc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7e"},{"url":"https://git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd"},{"url":"https://git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61a"},{"url":"https://git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4"},{"url":"https://git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8"},{"url":"https://git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fb"},{"url":"https://git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3"},{"url":"https://git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-24T16:29:30.671Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.6.141"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.12.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.18.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}