clk: microchip: mpfs-ccc: fix out of bounds access during output registration
Published Jun 8, 2026
7.1
HIGHCVSS 3.1
EPSS 0.17%
Description
UBSAN reported an out of bounds access during registration of the last two outputs. This out of bounds access occurs because space is only allocated in the hws array for two PLLs and the four output dividers that each has, but the defined IDs contain two DLLS and their two outputs each, which are not supported by the driver. The ID order is PLLs -> DLLs -> PLL outputs -> DLL outputs. Decrement the PLL output IDs by two while adding them to the array to avoid the problem.
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 6.1StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<6.1
- Version 6.1.175StatusunaffectedConstraints<=6.1.*
- Version 6.12.88StatusunaffectedConstraints<=6.12.*
- Version 6.18.30StatusunaffectedConstraints<=6.18.*
- Version 6.6.140StatusunaffectedConstraints<=6.6.*
- Version 7.0.7StatusunaffectedConstraints<=7.0.*
- Version 7.1StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
| |||||||||||||||||||||||||||
| Linux | Linux | affected |
|
- ≥ 6.1 · < 6.1.175
- ≥ 6.2 · < 6.6.140
- ≥ 6.7 · < 6.12.88
- ≥ 6.13 · < 6.18.30
- ≥ 6.19 · < 7.0.7
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (12)
- https://access.redhat.com/security/cve/CVE-2026-46293 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2486474 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-35159 Advisory
- https://git.kernel.org/stable/c/2f7ae8ab6aa73daaf080d5332110357c29df9c36 Patch
- https://git.kernel.org/stable/c/47bc7a03449c39805bc2665d3e57c73195d5bcf8 Patch
- https://git.kernel.org/stable/c/9ed9b580a814773482c0a4f1be045636e68cc109 Patch
- https://git.kernel.org/stable/c/a0780aeea166a7cf4706c45af4cadbb2a43a1fc9 Patch
- https://git.kernel.org/stable/c/dbfcb09656cb30439577325c9dea2250203c2e3c Patch
- https://git.kernel.org/stable/c/f24efd415455b98a1f1cfc6071fe6fde71986706 Patch
- https://lore.kernel.org/linux-cve-announce/2026060857-CVE-2026-46293-b59c@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-46293
- https://www.cve.org/CVERecord?id=CVE-2026-46293
Change history (0)
No recorded changes yet.