{"id":"CVE-2026-98668","state":"PUBLISHED","title":"iio: buffer: Ensure bounce buffer used for unaligned case is zeroed.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: Ensure bounce buffer used for unaligned case is zeroed.\n\niio_push_to_buffers_with_ts_unaligned() leaks uninitialized heap memory\nto userspace if the data passed in is not a multiple of 8 bytes and the\ntimestamp is enabled. Specify __GFP_ZERO for the devm_krealloc()\nto ensure any extra space is cleared.","publishedAt":"2026-10-18T15:44:55.291Z","updatedAt":"2026-10-30T12:38:35.592Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"b953b8d5e6f2d53e81faa0f3b42856cdf16fe563","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"b4f53cec8cc94b37601ce0bb2b272b6753beed98","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"b134ef820610bd873c9d59999d9824710964ce82","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"3a87212b1a09a1fdd730ce5520f7b1fc0b488511","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"5330036bc68d23672bfcc16c60c54701ae123083","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/industrialio-buffer.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/industrialio-buffer.c"]}],"references":["https://git.kernel.org/stable/c/b953b8d5e6f2d53e81faa0f3b42856cdf16fe563","https://git.kernel.org/stable/c/b4f53cec8cc94b37601ce0bb2b272b6753beed98","https://git.kernel.org/stable/c/b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2","https://git.kernel.org/stable/c/b134ef820610bd873c9d59999d9824710964ce82","https://git.kernel.org/stable/c/3a87212b1a09a1fdd730ce5520f7b1fc0b488511","https://git.kernel.org/stable/c/5330036bc68d23672bfcc16c60c54701ae123083"],"weaknesses":[],"ingestedAt":"2026-10-30T12:58:04.520Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98668.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98668","state":"PUBLISHED","datePublished":"2026-10-18T15:44:55.291Z","dateUpdated":"2026-10-30T12:38:35.592Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.363Z"},"containers":{"cna":{"title":"iio: buffer: Ensure bounce buffer used for unaligned case is zeroed.","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: Ensure bounce buffer used for unaligned case is zeroed.\n\niio_push_to_buffers_with_ts_unaligned() leaks uninitialized heap memory\nto userspace if the data passed in is not a multiple of 8 bytes and the\ntimestamp is enabled. Specify __GFP_ZERO for the devm_krealloc()\nto ensure any extra space is cleared."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"b953b8d5e6f2d53e81faa0f3b42856cdf16fe563","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"b4f53cec8cc94b37601ce0bb2b272b6753beed98","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"b134ef820610bd873c9d59999d9824710964ce82","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"3a87212b1a09a1fdd730ce5520f7b1fc0b488511","versionType":"git"},{"version":"95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6","status":"affected","lessThan":"5330036bc68d23672bfcc16c60c54701ae123083","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/industrialio-buffer.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/industrialio-buffer.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b953b8d5e6f2d53e81faa0f3b42856cdf16fe563"},{"url":"https://git.kernel.org/stable/c/b4f53cec8cc94b37601ce0bb2b272b6753beed98"},{"url":"https://git.kernel.org/stable/c/b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2"},{"url":"https://git.kernel.org/stable/c/b134ef820610bd873c9d59999d9824710964ce82"},{"url":"https://git.kernel.org/stable/c/3a87212b1a09a1fdd730ce5520f7b1fc0b488511"},{"url":"https://git.kernel.org/stable/c/5330036bc68d23672bfcc16c60c54701ae123083"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:38:35.592Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}