{"id":"CVE-2026-90295","published":"2026-09-17T17:17:26.853","lastModified":"2026-09-17T17:17:26.853","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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/263a35331169390f7f9ccb51d74e668610199af4","tags":[]},{"url":"https://git.kernel.org/stable/c/49f2f9b1d0cc76cf221306fc707703205bd27073","tags":[]},{"url":"https://git.kernel.org/stable/c/55516986a3d81325c84f2d4ae9cd03116bc63599","tags":[]},{"url":"https://git.kernel.org/stable/c/55864b26c22cbd4b2e0d36154a8c35931c2e133b","tags":[]},{"url":"https://git.kernel.org/stable/c/8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82","tags":[]},{"url":"https://git.kernel.org/stable/c/aaa66e60c0e21d19993a95bc3718dc29eb2d3192","tags":[]},{"url":"https://git.kernel.org/stable/c/b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9","tags":[]},{"url":"https://git.kernel.org/stable/c/c5135bc34ea37e9d19f758e61ac44415afb3891a","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}