{"id":"CVE-2026-89947","summary":"clk: meson: align gxbb_32k_clk_sel number of parents with actual count","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nclk: meson: align gxbb_32k_clk_sel number of parents with actual count\n\nThe following out-of-bounds read has been observed by Christian on a\nGXBB WeTek Hub:\n==================================================================\nBUG: KASAN: global-out-of-bounds in __clk_register+0x1b70/0x2418\nRead of size 8 at addr ffffd66320cf88e0 by task swapper/0/1\n\nCPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 7.0.0-rc5 #1 PREEMPT\nHardware name: WeTek Hub (DT)\nCall trace:\n show_stack+0x14/0x20 (C)\n dump_stack_lvl+0x74/0x94\n print_report+0x164/0x4b0\n kasan_report+0x98/0xd8\n __asan_report_load8_noabort+0x1c/0x24\n __clk_register+0x1b70/0x2418\n devm_clk_hw_register+0x74/0x15c\n meson_clkc_init+0xd4/0x20c\n meson_clkc_syscon_probe+0x5c/0x94\n platform_probe+0xbc/0x17c\n really_probe+0x184/0x844\n __driver_probe_device+0x154/0x35c\n driver_probe_device+0x60/0x188\n __driver_attach+0x168/0x4a0\n bus_for_each_dev+0xec/0x180\n driver_attach+0x38/0x58\n bus_add_driver+0x238/0x4c0\n driver_register+0x150/0x388\n __platform_driver_register+0x54/0x7c\n gxbb_clkc_driver_init+0x18/0x20\n do_one_initcall+0xb8/0x340\n kernel_init_freeable+0x49c/0x52c\n kernel_init+0x24/0x148\n ret_from_fork+0x10/0x20\n\nThe buggy address belongs to the variable:\n gxbb_32k_clk_parents+0x60/0x400\n\nThe buggy address belongs to a vmalloc virtual mapping\nThe buggy address belongs to the physical page:\n\nMemory state around the buggy address:\n ffffd66320cf8780: 00 00 00 00 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9\n ffffd66320cf8800: 00 04 f9 f9 f9 f9 f9 f9 00 04 f9 f9 f9 f9 f9 f9\n\u003effffd66320cf8880: 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9\n                                                       ^\n ffffd66320cf8900: 00 01 f9 f9 f9 f9 f9 f9 00 06 f9 f9 f9 f9 f9 f9\n ffffd66320cf8980: 00 00 02 f9 f9 f9 f9 f9 00 00 02 f9 f9 f9 f9 f9\n==================================================================\n\nCommit 7915d7d5407c (\"clk: amlogic: gxbb: drop non existing 32k clock\nparent\") dropped a non-existing clock parent from the gxbb_32k_clk_sel\nmux but didn't adjust the hard-coded num_parents field. Fix the actual\nnumber of parents of that mux by using ARRAY_SIZE instead (avoiding\nsimilar problems in future).","modified":"2026-09-17T03:47:20.525619641Z","published":"2026-09-16T10:32:33.387Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89947.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1e509a6707d2fd9da79bdfa24742661b34562bfd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/404079d124d75a5da16322acc53d3ffc50b4ec68"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4582949b7badcb91bb537ca522d69b8a35131e72"},{"type":"WEB","url":"https://git.kernel.org/stable/c/628b6fee9fca292f12d07f0f1bcf1edefa949d81"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8b2f7a411e7ceaef268355c2150c22ee3f509c3b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bf85bd6e550c17ffa585606fcc18eb5b7c95bbce"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c86214e6178c38a0eff39110a4e92b824f5dd403"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f6ff0e6995dbff5cb145d7795c8f0af9c168094a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89947.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89947"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"b9778cd803b330b8d7a9b523743c35093454b77f"},{"fixed":"c86214e6178c38a0eff39110a4e92b824f5dd403"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f95e0f36e592e17a24ba4f56c355946448f84291"},{"fixed":"8b2f7a411e7ceaef268355c2150c22ee3f509c3b"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6ded8c22af4700bbf91da24ac025f9d05b879267"},{"fixed":"1e509a6707d2fd9da79bdfa24742661b34562bfd"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7061afacc89dec3f02f7412653b83f148a0c646b"},{"fixed":"404079d124d75a5da16322acc53d3ffc50b4ec68"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4d32504f7ae951600e216aac4e04c81b02421a9d"},{"fixed":"f6ff0e6995dbff5cb145d7795c8f0af9c168094a"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7915d7d5407c026fa9343befb4d3343f7a345f97"},{"fixed":"4582949b7badcb91bb537ca522d69b8a35131e72"},{"fixed":"bf85bd6e550c17ffa585606fcc18eb5b7c95bbce"},{"fixed":"628b6fee9fca292f12d07f0f1bcf1edefa949d81"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"450a1d9eac98886c7d19586dd10e72a4eaf8e1bc"},{"last_affected":"f18b09c998002ed6a67d1a235f3941a2662f1036"},{"last_affected":"1eb7a2f3e25075b2dc9b10c94616b066f80e79ee"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.10.236"},{"fixed":"5.10.270"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.15.180"},{"fixed":"5.15.221"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.1.134"},{"fixed":"6.1.188"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.6.87"},{"fixed":"6.6.157"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.12.23"},{"fixed":"6.12.110"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.4.292"},{"fixed":"5.5"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.13.11"},{"fixed":"6.14"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.14.2"},{"fixed":"6.15"}]}],"versions":["v5.10.269","v5.10.268","v5.10.267","v5.10.266","v5.10.265","v5.10.264","v5.10.263","v5.10.262","v5.10.261","v5.10.260","v5.10.259","v5.10.258","v5.10.257","v5.10.256","v5.10.255","v5.10.254","v5.10.253","v5.10.252","v5.10.251","v5.10.250","v5.10.249","v5.10.248","v5.10.247","v5.10.246","v5.10.245","v5.10.244","v5.10.243","v5.10.242","v5.10.241","v5.10.240","v5.10.239","v5.10.238","v5.10.237","v5.10.236","v5.15.220","v5.15.219","v5.15.218","v5.15.217","v5.15.216","v5.15.215","v5.15.214","v5.15.213","v5.15.212","v5.15.211","v5.15.210","v5.15.209","v5.15.208","v5.15.207","v5.15.206","v5.15.205","v5.15.204","v5.15.203","v5.15.202","v5.15.201","v5.15.200","v5.15.199","v5.15.198","v5.15.197","v5.15.196","v5.15.195","v5.15.194","v5.15.193","v5.15.192","v5.15.191","v5.15.190","v5.15.189","v5.15.188","v5.15.187","v5.15.18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