CVE-2026-89947
- Source
- https://cve.org/CVERecord?id=CVE-2026-89947
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89947.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-89947
- Downstream
- Related
- Published
- 2026-09-16T10:32:33Z
- Modified
- 2026-10-08T02:52:21Z
- Severity
-
- 8.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H CVSS Calculator
- 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:
clk: meson: align gxbb_32k_clk_sel number of parents with actual count
The following out-of-bounds read has been observed by Christian on a GXBB WeTek Hub:
BUG: KASAN: global-out-of-bounds in __clk_register+0x1b70/0x2418 Read of size 8 at addr ffffd66320cf88e0 by task swapper/0/1
CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 7.0.0-rc5 #1 PREEMPT Hardware name: WeTek Hub (DT) Call trace: show_stack+0x14/0x20 (C) dump_stack_lvl+0x74/0x94 print_report+0x164/0x4b0 kasan_report+0x98/0xd8 __asan_report_load8_noabort+0x1c/0x24 __clk_register+0x1b70/0x2418 devm_clk_hw_register+0x74/0x15c meson_clkc_init+0xd4/0x20c meson_clkc_syscon_probe+0x5c/0x94 platform_probe+0xbc/0x17c really_probe+0x184/0x844 __driver_probe_device+0x154/0x35c driver_probe_device+0x60/0x188 __driver_attach+0x168/0x4a0 bus_for_each_dev+0xec/0x180 driver_attach+0x38/0x58 bus_add_driver+0x238/0x4c0 driver_register+0x150/0x388 __platform_driver_register+0x54/0x7c gxbb_clkc_driver_init+0x18/0x20 do_one_initcall+0xb8/0x340 kernel_init_freeable+0x49c/0x52c kernel_init+0x24/0x148 ret_from_fork+0x10/0x20
The buggy address belongs to the variable: gxbb_32k_clk_parents+0x60/0x400
The buggy address belongs to a vmalloc virtual mapping The buggy address belongs to the physical page:
Memory state around the buggy address: ffffd66320cf8780: 00 00 00 00 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 ffffd66320cf8800: 00 04 f9 f9 f9 f9 f9 f9 00 04 f9 f9 f9 f9 f9 f9
ffffd66320cf8880: 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 ^ ffffd66320cf8900: 00 01 f9 f9 f9 f9 f9 f9 00 06 f9 f9 f9 f9 f9 f9 ffffd66320cf8980: 00 00 02 f9 f9 f9 f9 f9 00 00 02 f9 f9 f9 f9 f9 ==================================================================
Commit 7915d7d5407c ("clk: amlogic: gxbb: drop non existing 32k clock parent") dropped a non-existing clock parent from the gxbb_32k_clk_sel mux but didn't adjust the hard-coded num_parents field. Fix the actual number of parents of that mux by using ARRAY_SIZE instead (avoiding similar problems in future).
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89947.json" }- References
-
- https://git.kernel.org/stable/c/1e509a6707d2fd9da79bdfa24742661b34562bfd
- https://git.kernel.org/stable/c/404079d124d75a5da16322acc53d3ffc50b4ec68
- https://git.kernel.org/stable/c/4582949b7badcb91bb537ca522d69b8a35131e72
- https://git.kernel.org/stable/c/628b6fee9fca292f12d07f0f1bcf1edefa949d81
- https://git.kernel.org/stable/c/8b2f7a411e7ceaef268355c2150c22ee3f509c3b
- https://git.kernel.org/stable/c/bf85bd6e550c17ffa585606fcc18eb5b7c95bbce
- https://git.kernel.org/stable/c/c86214e6178c38a0eff39110a4e92b824f5dd403
- https://git.kernel.org/stable/c/f6ff0e6995dbff5cb145d7795c8f0af9c168094a
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89947.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-89947
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb9778cd803b330b8d7a9b523743c35093454b77fFixedc86214e6178c38a0eff39110a4e92b824f5dd403
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf95e0f36e592e17a24ba4f56c355946448f84291Fixed8b2f7a411e7ceaef268355c2150c22ee3f509c3b
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6ded8c22af4700bbf91da24ac025f9d05b879267Fixed1e509a6707d2fd9da79bdfa24742661b34562bfd
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced7061afacc89dec3f02f7412653b83f148a0c646bFixed404079d124d75a5da16322acc53d3ffc50b4ec68
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4d32504f7ae951600e216aac4e04c81b02421a9dFixedf6ff0e6995dbff5cb145d7795c8f0af9c168094a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced7915d7d5407c026fa9343befb4d3343f7a345f97Fixed4582949b7badcb91bb537ca522d69b8a35131e72Fixedbf85bd6e550c17ffa585606fcc18eb5b7c95bbceFixed628b6fee9fca292f12d07f0f1bcf1edefa949d81
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.10.236Fixed5.10.270
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.15.180Fixed5.15.221
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.1.134Fixed6.1.188
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.87Fixed6.6.157
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.12.23Fixed6.12.110
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.4.292Fixed5.5
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.13.11Fixed6.14
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.14.2Fixed6.15
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced450a1d9eac98886c7d19586dd10e72a4eaf8e1bc
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf18b09c998002ed6a67d1a235f3941a2662f1036
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced1eb7a2f3e25075b2dc9b10c94616b066f80e79ee
Affected versions
v5.*
v6.*
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed5.10.270
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.221
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.188
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.157
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.110
- Type
- ECOSYSTEM
- Events
-
Introduced6.13.0Fixed6.18.51
- Type
- ECOSYSTEM
- Events
-
Introduced6.15.0Fixed7.2.5