{"id":"CVE-2026-89947","title":"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===========…","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 observed by Christian on a\nGXBB WeTek Hub:\n===========…","severity":"high","cvss":8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= b9778cd803b330b8d7a9b523743c35093454b77f < c86214e6178c38a0eff39110a4e92b824f5dd403","Linux >= f95e0f36e592e17a24ba4f56c355946448f84291 < 8b2f7a411e7ceaef268355c2150c22ee3f509c3b","Linux >= 6ded8c22af4700bbf91da24ac025f9d05b879267 < 1e509a6707d2fd9da79bdfa24742661b34562bfd","Linux >= 7061afacc89dec3f02f7412653b83f148a0c646b < 404079d124d75a5da16322acc53d3ffc50b4ec68","Linux >= 4d32504f7ae951600e216aac4e04c81b02421a9d < f6ff0e6995dbff5cb145d7795c8f0af9c168094a","Linux >= 7915d7d5407c026fa9343befb4d3343f7a345f97 < 4582949b7badcb91bb537ca522d69b8a35131e72","Linux >= 7915d7d5407c026fa9343befb4d3343f7a345f97 < bf85bd6e550c17ffa585606fcc18eb5b7c95bbce","Linux >= 7915d7d5407c026fa9343befb4d3343f7a345f97 < 628b6fee9fca292f12d07f0f1bcf1edefa949d81","Linux 450a1d9eac98886c7d19586dd10e72a4eaf8e1bc","Linux f18b09c998002ed6a67d1a235f3941a2662f1036","Linux 1eb7a2f3e25075b2dc9b10c94616b066f80e79ee","Linux >= 5.10.236 < 5.10.270","Linux >= 5.15.180 < 5.15.221","Linux >= 6.1.134 < 6.1.188","Linux >= 6.6.87 < 6.6.157","Linux >= 6.12.23 < 6.12.110","Linux >= 5.4.292 < 5.5","Linux >= 6.13.11 < 6.14","Linux >= 6.14.2 < 6.15","Linux 6.15"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T15:18:19.817","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89947","references":[{"url":"https://git.kernel.org/stable/c/1e509a6707d2fd9da79bdfa24742661b34562bfd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/404079d124d75a5da16322acc53d3ffc50b4ec68","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4582949b7badcb91bb537ca522d69b8a35131e72","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/628b6fee9fca292f12d07f0f1bcf1edefa949d81","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8b2f7a411e7ceaef268355c2150c22ee3f509c3b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bf85bd6e550c17ffa585606fcc18eb5b7c95bbce","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c86214e6178c38a0eff39110a4e92b824f5dd403","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f6ff0e6995dbff5cb145d7795c8f0af9c168094a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-16T10:53:53.964Z","epss":0.00182,"epssPercentile":0.08055,"slug":"CVE-2026-89947","body":"## Overview\n\nIn 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).\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":44,"depthScoreParts":{"impact":44,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":205093,"id":"CVE-2026-89947","ts":1789570705201,"field":"cvss","old":null,"new":"8"},{"seq":205092,"id":"CVE-2026-89947","ts":1789570705201,"field":"severity","old":"none","new":"high"}]}