CVE-2026-98830
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: wfx: validate MIB read length before copying to caller wfx_hif_read_mib() copies reply->length bytes from the firmware response into the caller-provided buffer without checking that reply->length does not exceed val_len. A firmware response with a length field larger than expected overruns the caller buffer and reads past the end of the reply allocation. Replace the dead -ENOMEM check with an active validation that reply->length fits within val_len before the memcpy.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 18, 2026
First seenOct 18, 2026
How to fix
Update
- Linux Linuxb8310b55e53622a393d14af4939f620c1828778b, 819d4c1323e2a9b7329021d5367aa01add22b5dc, 02886c18a340da59df57365f29009e1258bfe333, 71d140099165de03128c00dd129f1eab21c6a3c4, 7acb36fd60a3e7b858f12e69a919c3609b281408, ce67ebe9d8629776ce38e6995ae72fb903c828db or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | f95a29d40782f4f0052a692a822de3ba044b19ff ≤ v < b8310b55e53622a393d14af4939f620c1828778b, f95a29d40782f4f0052a692a822de3ba044b19ff ≤ v < 819d4c1323e2a9b7329021d5367aa01add22b5dc, f95a29d40782f4f0052a692a822de3ba044b19ff ≤ v < 02886c18a340da59df57365f29009e1258bfe333, f95a29d40782f4f0052a692a822de3ba044b19ff ≤ v < 71d140099165de03128c00dd129f1eab21c6a3c4, f95a29d40782f4f0052a692a822de3ba044b19ff ≤ v < 7acb36fd60a3e7b858f12e69a919c3609b281408, f95a29d40782f4f0052a692a822de3ba044b19ff ≤ v < ce67ebe9d8629776ce38e6995ae72fb903c828db, 5.5 | b8310b55e53622a393d14af4939f620c1828778b, 819d4c1323e2a9b7329021d5367aa01add22b5dc, 02886c18a340da59df57365f29009e1258bfe333, 71d140099165de03128c00dd129f1eab21c6a3c4, 7acb36fd60a3e7b858f12e69a919c3609b281408, ce67ebe9d8629776ce38e6995ae72fb903c828db |
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