{"id":"CVE-2026-90295","state":"PUBLISHED","title":"cpufreq: imx6q: fix out-of-bounds write when probed more than once","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: imx6q: fix out-of-bounds write when probed more than once\n\nimx6_soc_volt is allocated fresh on every probe, sized to the number of\nARM OPPs:\n\n\timx6_soc_volt = devm_kcalloc(cpu_dev, num, sizeof(*imx6_soc_volt),\n\t\t\t\t     GFP_KERNEL);\n\nbut it is filled through soc_opp_count, which has static storage and is\nnever reset. A second bind after an unbind keeps indexing from where the\nfirst one stopped, and writes past the end of the new array.\n\nUnbinding and rebinding the driver on qemu's mcimx6ul-evk, under KASAN:\n\n  BUG: KASAN: slab-out-of-bounds in imx6q_cpufreq_probe+0x3b0/0xa34\n  Write of size 4 at addr c5e90480 by task binder/73\n   imx6q_cpufreq_probe from platform_probe+0x88/0xe4\n   platform_probe from really_probe+0x108/0x384\n   bind_store from kernfs_fop_write_iter+0x1b4/0x28c\n\nThe write lands one u32 past the end of the allocation.\n\nsoc_opp_count is only read a few lines below the loop that fills it, so it\nnever needed static storage. Make it a local.","publishedAt":"2026-09-17T16:08:21.295Z","updatedAt":"2026-10-19T09:01:13.419Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"263a35331169390f7f9ccb51d74e668610199af4","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"49f2f9b1d0cc76cf221306fc707703205bd27073","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"c5135bc34ea37e9d19f758e61ac44415afb3891a","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"55864b26c22cbd4b2e0d36154a8c35931c2e133b","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"aaa66e60c0e21d19993a95bc3718dc29eb2d3192","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"55516986a3d81325c84f2d4ae9cd03116bc63599","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/imx6q-cpufreq.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.14","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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/cpufreq/imx6q-cpufreq.c"]}],"references":["https://git.kernel.org/stable/c/263a35331169390f7f9ccb51d74e668610199af4","https://git.kernel.org/stable/c/49f2f9b1d0cc76cf221306fc707703205bd27073","https://git.kernel.org/stable/c/c5135bc34ea37e9d19f758e61ac44415afb3891a","https://git.kernel.org/stable/c/55864b26c22cbd4b2e0d36154a8c35931c2e133b","https://git.kernel.org/stable/c/b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9","https://git.kernel.org/stable/c/aaa66e60c0e21d19993a95bc3718dc29eb2d3192","https://git.kernel.org/stable/c/55516986a3d81325c84f2d4ae9cd03116bc63599","https://git.kernel.org/stable/c/8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90295.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90295","state":"PUBLISHED","datePublished":"2026-09-17T16:08:21.295Z","dateUpdated":"2026-10-19T09:01:13.419Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.799Z"},"containers":{"cna":{"title":"cpufreq: imx6q: fix out-of-bounds write when probed more than once","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: imx6q: fix out-of-bounds write when probed more than once\n\nimx6_soc_volt is allocated fresh on every probe, sized to the number of\nARM OPPs:\n\n\timx6_soc_volt = devm_kcalloc(cpu_dev, num, sizeof(*imx6_soc_volt),\n\t\t\t\t     GFP_KERNEL);\n\nbut it is filled through soc_opp_count, which has static storage and is\nnever reset. A second bind after an unbind keeps indexing from where the\nfirst one stopped, and writes past the end of the new array.\n\nUnbinding and rebinding the driver on qemu's mcimx6ul-evk, under KASAN:\n\n  BUG: KASAN: slab-out-of-bounds in imx6q_cpufreq_probe+0x3b0/0xa34\n  Write of size 4 at addr c5e90480 by task binder/73\n   imx6q_cpufreq_probe from platform_probe+0x88/0xe4\n   platform_probe from really_probe+0x108/0x384\n   bind_store from kernfs_fop_write_iter+0x1b4/0x28c\n\nThe write lands one u32 past the end of the allocation.\n\nsoc_opp_count is only read a few lines below the loop that fills it, so it\nnever needed static storage. Make it a local."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"263a35331169390f7f9ccb51d74e668610199af4","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"49f2f9b1d0cc76cf221306fc707703205bd27073","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"c5135bc34ea37e9d19f758e61ac44415afb3891a","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"55864b26c22cbd4b2e0d36154a8c35931c2e133b","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"aaa66e60c0e21d19993a95bc3718dc29eb2d3192","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"55516986a3d81325c84f2d4ae9cd03116bc63599","versionType":"git"},{"version":"b4573d1d657aae28bedf3a9a1f5367e09c80d1d6","status":"affected","lessThan":"8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/imx6q-cpufreq.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.14","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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/cpufreq/imx6q-cpufreq.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/263a35331169390f7f9ccb51d74e668610199af4"},{"url":"https://git.kernel.org/stable/c/49f2f9b1d0cc76cf221306fc707703205bd27073"},{"url":"https://git.kernel.org/stable/c/c5135bc34ea37e9d19f758e61ac44415afb3891a"},{"url":"https://git.kernel.org/stable/c/55864b26c22cbd4b2e0d36154a8c35931c2e133b"},{"url":"https://git.kernel.org/stable/c/b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9"},{"url":"https://git.kernel.org/stable/c/aaa66e60c0e21d19993a95bc3718dc29eb2d3192"},{"url":"https://git.kernel.org/stable/c/55516986a3d81325c84f2d4ae9cd03116bc63599"},{"url":"https://git.kernel.org/stable/c/8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:01:13.419Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}