CVE-2026-89888media: i2c: ov02a10: fix endpoint parsing use-after-free
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In the Linux kernel, the following vulnerability has been resolved: media: i2c: ov02a10: fix endpoint parsing use-after-free The ov02a10_check_hwcfg() function calls fwnode_handle_put(ep) immediately after allocating and parsing the endpoint. However, it subsequently calls fwnode_property_read_u32() using the same 'ep' handle, leading to a potential use-after-free. Additionally, reading the optional 'ovti,mipi-clock-voltage' property used to overwrite the 'ret' variable. If the property was missing, 'ret' would become negative, and this failure code would be incorrectly returned at the end of the function, causing probe to fail entirely. Fix the use-after-free by moving fwnode_property_read_u32() before the endpoint is parsed and freed. Avoid the error leak by not assigning the result of fwnode_property_read_u32() to 'ret'.
- 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
- Received
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 91807efbe8ec7f591085067d9f96a112e015274b builds before 9de48ba68f56de9fe20ebd3f9728d22af25f9a91; 91807efbe8ec7f591085067d9f96a112e015274b builds before 8ddb3b69f67b0632ff3830da18de3e8dcaf5884b; 91807efbe8ec7f591085067d9f96a112e015274b builds before 4c2988bf1ad2753240a38db10ce23e87ec542f8f; 91807efbe8ec7f591085067d9f96a112e015274b builds before 213b2489130357c8d3e8d4fb2bdab88791ce3185; 91807efbe8ec7f591085067d9f96a112e015274b builds before 90f9b421fc6d4f2edab7521efdb1e58571468d33; 91807efbe8ec7f591085067d9f96a112e015274b builds before 6e13784452785cd8402b228bea53bc6a027ade84; from 91807efbe8ec7f591085067d9f96a112e015274b before 94971ba0592ca77ec99b292226a4b398763315b8 | CNA record |
References
- https://git.kernel.org/stable/c/9de48ba68f56de9fe20ebd3f9728d22af25f9a91
- https://git.kernel.org/stable/c/8ddb3b69f67b0632ff3830da18de3e8dcaf5884b
- https://git.kernel.org/stable/c/4c2988bf1ad2753240a38db10ce23e87ec542f8f
- https://git.kernel.org/stable/c/213b2489130357c8d3e8d4fb2bdab88791ce3185
- https://git.kernel.org/stable/c/90f9b421fc6d4f2edab7521efdb1e58571468d33
- https://git.kernel.org/stable/c/6e13784452785cd8402b228bea53bc6a027ade84
- https://git.kernel.org/stable/c/94971ba0592ca77ec99b292226a4b398763315b8
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.