CVE-2025-39680i2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer
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: i2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer The data->block[0] variable comes from user. Without proper check, the variable may be very large to cause an out-of-bounds bug. Fix this bug by checking the value of data->block[0] first. 1. commit 39244cc75482 ("i2c: ismt: Fix an out-of-bounds bug in ismt_access()") 2. commit 92fbb6d1296f ("i2c: xgene-slimpro: Fix out-of-bounds bug in xgene_slimpro_i2c_xfer()")
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- 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
- Modified
- Record last updated
- Aug 5, 2026
- First seen by InfoSec Signals
- Oct 19, 2026
Affected products
Linux Linux linux:linux (from the name) | from c366be720235301fdadf67e6f1ea6ff32669c074 before 071e43fcba5ddd9a7813e6cc0aa10299eae41b21; from c366be720235301fdadf67e6f1ea6ff32669c074 before 57f312b955938fc4663f430cb57a71f2414f601b | CNA record |
linux linux_kernel linux:linux_kernel | from 6.13 before 6.16.4; 6.17; 6.17 | NVD |
References
- https://git.kernel.org/stable/c/071e43fcba5ddd9a7813e6cc0aa10299eae41b21patch
- https://git.kernel.org/stable/c/57f312b955938fc4663f430cb57a71f2414f601bpatch
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.