CVE-2026-74553hwmon: (nct6775-core) Fix number of temperature registers for NCT6116
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: hwmon: (nct6775-core) Fix number of temperature registers for NCT6116 Unlike NCT6106, NCT6116 only has three temperature registers, and with it only three temperature source and temperature source configuration registers. The register addresses match those of NCT6106 and can be re-used. The code used a separate array to list the temperature source registers for NCT6116, but used the size of the NCT6106 register array to set the number of registers. The NCT6106 register array provides six addresses, while the temperature source register array for NCT6116 only provides three addresses. This causes a KASAN report. BUG: KASAN: global-out-of-bounds in nct6775_probe+0x936/0x46f0 [nct6775] Read of size 2 at addr ffffffffc19561a6 by task modprobe/954 ... Call Trace: dump_stack+0x7d/0xa7 print_address_description.constprop.0+0x1c/0x220 ? __kasan_kmalloc.constprop.0+0xc9/0xd0 ? __kmalloc_node_track_caller+0x194/0x5b0 ? nct6775_probe+0x936/0x46f0 [nct6775] ? nct6775_probe+0x936/0x46f0 [nct6775] ... Fix the problem by hard-coding the number of temperature and temperature configuration registers to three for NCT6116. Drop the unnecessary NCT6116_REG_TEMP_SOURCE array and re-use NCT6106_REG_TEMP_SOURCE.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 29c7cb485b321c024dedc168bcbb04451176b163 before 739d7fc6b6f662c8286912157f0c4912388aa292; 29c7cb485b321c024dedc168bcbb04451176b163 builds before 9a87dfaa05c3c9d3a4cdb7eafc1ab4abc84f6eef; 29c7cb485b321c024dedc168bcbb04451176b163 builds before 16c45bb3d3434cfb9ea264fa52090d0823240465; from 29c7cb485b321c024dedc168bcbb04451176b163 before a42d727dae5701deac8bb2a75effadae7d681153; from 29c7cb485b321c024dedc168bcbb04451176b163 before a7f47f5246cd6c3199e5fb2d4109cc53e766e3f0; from 29c7cb485b321c024dedc168bcbb04451176b163 before b0e8adb2ccb43009796897ced09f91636685c9d3 | CNA record |
References
- https://git.kernel.org/stable/c/739d7fc6b6f662c8286912157f0c4912388aa292
- https://git.kernel.org/stable/c/9a87dfaa05c3c9d3a4cdb7eafc1ab4abc84f6eef
- https://git.kernel.org/stable/c/16c45bb3d3434cfb9ea264fa52090d0823240465
- https://git.kernel.org/stable/c/a42d727dae5701deac8bb2a75effadae7d681153
- https://git.kernel.org/stable/c/a7f47f5246cd6c3199e5fb2d4109cc53e766e3f0
- https://git.kernel.org/stable/c/b0e8adb2ccb43009796897ced09f91636685c9d3
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.