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CVE-2026-98407— wifi: rsi: fix heap OOB write on key removal

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已解决以下漏洞： wifi: rsi: 修复密钥移除时的堆越界写入 当移除密钥（ ）时， 函数会执行以下操作： 其中 是 类型，因此下标会按 （160 字节）进行缩放。因此， 指向的位置是 ，而 会从该位置开始向后写入 144 个零字节。然而，该位置实际上超出了长度为 160 字节的 数据缓冲区末尾 2.4KB 处，从而损坏了无关的堆对象。本意使用的字节偏移量应为 。 该写入操作会在每次收到 回调时触发，因此简单的断开连接、漫游以及接口销毁等操作在真实网络中都会触发此漏洞。 该 调用是多余的

AI Predicted 7.8 Difficulty: Moderate

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux dad0d04fa7ba41ce603a01e8e64967650303e9a2< b79e2f6585c014c42384f4caa7a37b3e5d26179c affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< c67fb3b875a83f9ba92afea4036c7b541f77512a affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< 62d40db89180cfab7a917395f9ffc1dac62b0019 affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< 00bea3589255603c38766cac4a4d6d36493b2556 affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< ac599cf8edf8aa2dae546f04d3f1849e32c2e738 affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< f4f2852b664c3ff1436785cd11258a0ce25b74b3 affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< 8dab6ee020b2cd951b670626ba44a95cd4deac3d affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< e6c5ed7a98d7bc8b0f7918246f1c90ddb3f79dfa affected
… +10 more rows
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I. Basic Information for CVE-2026-98407

Vulnerability Information
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Vulnerability Title
wifi: rsi: fix heap OOB write on key removal
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux dad0d04fa7ba41ce603a01e8e64967650303e9a2 ~ b79e2f6585c014c42384f4caa7a37b3e5d26179c -
Linux Linux 3.15 -

II. Public POCs for CVE-2026-98407

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III. Intelligence Information for CVE-2026-98407

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Other References for CVE-2026-98407 (8)

Same Patch Batch · Linux · 2026-10-14 · 46 CVEs total

CVE-2026-98398 locking/lockdep: Invalidate stale class_cache entries for zapped classes
CVE-2026-98396 powerpc: Do not restore KUAP in arch_exit_to_user_mode_prepare()
CVE-2026-98393 net: ipv4: Fix UDP length overflow with PMTU discover and big MTU
CVE-2026-98391 drm/xe: Guard page-fault worker with runtime PM check
CVE-2026-98389 drm/amdgpu: skip gfx switch_power_profile during GPU reset
CVE-2026-98388 exec: do_close_on_exec() before taking exec_update_lock
CVE-2026-98387 s390/crypto: Fix skcipher_walk return code handling in aes_s390
CVE-2026-98386 scsi: qla2xxx: Use memset_io() to clear QLAFX00 request ring slot
CVE-2026-98390 x86/amd_node: Avoid divide by zero on virtualized systems
CVE-2026-98397 platform/x86: x86-android-tablets: hold device reference for secondary fwnode teardown
CVE-2026-98395 powerpc/entry: Fix irq_soft_mask corruption on replayed interrupt exit
CVE-2026-98399 s390/ipl: Fix NULL deref in dump_reipl without re-IPL parm block
CVE-2026-98400 s390/ipl: Fix NULL deref in kdump without re-IPL parm block
CVE-2026-98402 net: icmp: avoid invalid transport header access in icmp_send tracepoint
CVE-2026-98401 net: iptunnel: fix stale transport header during tunnel decapsulation
CVE-2026-98403 s390/boot: Avoid IPL parameter append past command line
CVE-2026-98404 drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create()
CVE-2026-98405 smb: client: fix missing iov bounds check in parse_posix_sids()
CVE-2026-98406 wifi: mac80211: avoid WARN in set_bitrate_mask when sdata not in driver
CVE-2026-98408 watchdog: rzv2h: Avoid division by zero

Showing top 20 of 46 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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