{"id":"CVE-2026-89947","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-89947","summary":"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…","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>ffffd66320cf8880: 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).","published":"2026-09-16T11:17:04.700","modified":"2026-09-16T11:17:04.700","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"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"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-16T11:17:04.700"}}