CVE-2026-98407 is a vulnerability in Linux Kernel
Published on October 14, 2026
wifi: rsi: fix heap OOB write on key removal
In the Linux kernel, the following vulnerability has been resolved:
wifi: rsi: fix heap OOB write on key removal
When a key is removed (data == NULL), rsi_hal_load_key() runs:
memset(&set_key[FRAME_DESC_SZ], 0, frame_len - FRAME_DESC_SZ);
set_key is a struct rsi_set_key *, so the subscript is scaled by
sizeof(struct rsi_set_key) (160 bytes): &set_key[FRAME_DESC_SZ] is
skb->data + 2560, and the memset writes 144 zero bytes starting
2.4KB past the end of the 160-byte skb data buffer, corrupting
unrelated heap objects. The intended byte offset would have been
(u8 *)set_key + FRAME_DESC_SZ.
The write fires on every DISABLE_KEY callback, so plain disconnects,
roams and interface teardowns trigger it on real networks.
The memset is redundant: the whole buffer is zeroed right after
allocation, so the frame sent to the device is byte-identical
without it. Drop the else branch; normal operation is unaffected.
Discovered by Atuin - Automated Vulnerability Discovery Engine.
Products Associated with CVE-2026-98407
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Affected Versions
Linux:- Version dad0d04fa7ba41ce603a01e8e64967650303e9a2 and below b79e2f6585c014c42384f4caa7a37b3e5d26179c is affected.
- Version dad0d04fa7ba41ce603a01e8e64967650303e9a2 and below c67fb3b875a83f9ba92afea4036c7b541f77512a is affected.
- Version dad0d04fa7ba41ce603a01e8e64967650303e9a2 and below 62d40db89180cfab7a917395f9ffc1dac62b0019 is affected.
- Version dad0d04fa7ba41ce603a01e8e64967650303e9a2 and below 00bea3589255603c38766cac4a4d6d36493b2556 is affected.
- Version dad0d04fa7ba41ce603a01e8e64967650303e9a2 and below ac599cf8edf8aa2dae546f04d3f1849e32c2e738 is affected.
- Version dad0d04fa7ba41ce603a01e8e64967650303e9a2 and below f4f2852b664c3ff1436785cd11258a0ce25b74b3 is affected.
- Version dad0d04fa7ba41ce603a01e8e64967650303e9a2 and below 8dab6ee020b2cd951b670626ba44a95cd4deac3d is affected.
- Version dad0d04fa7ba41ce603a01e8e64967650303e9a2 and below e6c5ed7a98d7bc8b0f7918246f1c90ddb3f79dfa is affected.
- Version 3.15 is affected.
- Before 3.15 is unaffected.
- Version 5.10.271, <= 5.10.* is unaffected.
- Version 5.15.222, <= 5.15.* is unaffected.
- Version 6.1.189, <= 6.1.* is unaffected.
- Version 6.6.158, <= 6.6.* is unaffected.
- Version 6.12.112, <= 6.12.* is unaffected.
- Version 6.18.54, <= 6.18.* is unaffected.
- Version 7.2.8, <= 7.2.* is unaffected.
- Version 7.3-rc4, <= * is unaffected.