CVE-2026-93793— wifi: iwlwifi: mvm: validate TX_CMD response layout
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，以下漏洞已修复： wifi: iwlwifi: mvm: 验证 TX_CMD 响应布局 TX_CMD 的解析过程使用 来遍历状态条目，随后读取尾部附加的 SCD SSN。在解析负载之前，应先根据运行时计算的精确布局，执行最小长度检查。 对于新的 TX API，若 TX_CMD 响应的 不等于 1，则拒绝该响应；并在聚合处理程序中发出警告或返回，以明确表明聚合相关的账务信息预期通过块确认（BA）通知机制传递。
Affected Version Matrix 8
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c< fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b |
affected |
8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c< 4d942dfc13aec393e003ab28ff58db744c26e6eb |
affected | ||
8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c< 8d70881707b47353359df57df12f6de67fdacdd2 |
affected | ||
3.9 |
affected | ||
< 3.9 |
unaffected | ||
6.12.111≤ 6.12.* |
unaffected | ||
6.18.53≤ 6.18.* |
unaffected | ||
7.2≤ * |
unaffected |
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I. Basic Information for CVE-2026-93793
Vulnerability Information
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Vulnerability Title
wifi: iwlwifi: mvm: validate TX_CMD response layout
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: validate TX_CMD response layout
TX_CMD parsing uses frame_count to walk status entries and then
read the trailing SCD SSN. Make the minimum-length check follow
that exact runtime layout calculation before parsing the payload.
For new TX API, reject TX_CMD responses with frame_count != 1 and
warn/return in the aggregation handler to document that aggregated
accounting is expected via BA notifications.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-93793
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-93793 (3)
Same Patch Batch · Linux · 2026-09-24 · 234 CVEs total
| CVE-2026-97413 | 9.8 CRITICAL | RDMA/rtrs-srv: Fix integer underflow in process_read and process_write |
| CVE-2026-93207 | 9.8 CRITICAL | SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry |
| CVE-2026-93228 | 9.1 CRITICAL | svcrdma: Reject Write/Reply chunks with segcount 0 |
| CVE-2026-93799 | 8.8 HIGH | wifi: iwlwifi: mvm: validate sta_id in BA window status notif |
| CVE-2026-93790 | 8.8 HIGH | wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif |
| CVE-2026-97409 | 8.8 HIGH | nvme-fc: Do not cancel requests in io target before it is initialized |
| CVE-2026-93806 | 8.8 HIGH | wifi: cfg80211: validate assoc response length before status and IE access |
| CVE-2026-93280 | 8.8 HIGH | greybus: audio: bound the topology section sizes against the fetched size |
| CVE-2026-93284 | 8.8 HIGH | drm/pagemap: dma-unmap pages before handling migration errors |
| CVE-2026-97442 | 8.8 HIGH | wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi |
| CVE-2026-97509 | 8.8 HIGH | thunderbolt: Keep XDomain reference during the lifetime of a service |
| CVE-2026-97451 | 8.4 HIGH | ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op) |
| CVE-2026-93827 | 8.4 HIGH | virtio-fs: avoid double-free on failed queue setup |
| CVE-2026-97452 | 8.4 HIGH | ACPICA: Prevent adding invalid references |
| CVE-2026-97455 | 8.4 HIGH | ACPICA: Fix use-after-free in acpi_ds_terminate_control_method() |
| CVE-2026-97450 | 8.4 HIGH | ACPICA: validate handler object type in two places |
| CVE-2026-97433 | 8.2 HIGH | nvme: validate FDP configuration descriptor sizes |
| CVE-2026-93224 | 8.1 HIGH | svcrdma: Fix unmatched rn_unregister on failed accept |
| CVE-2026-93282 | 8.1 HIGH | ksmbd: fix maximum allowed access checks |
| CVE-2026-93221 | 8.1 HIGH | nfsd: convert nfsd_net boolean flags to unsigned long flags word |
Showing top 20 of 234 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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CVE-2026-100079
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Same vendor: Linux
-
CVE-2026-98163
cgroup: Avoid iteration of dying tasks with zero refcount -
CVE-2026-98162
smb/server: fix tree connection leak in smb2_tree_connect() -
CVE-2026-98161
nvdimm: pmem: keep PREFLUSH before data writes -
CVE-2026-98160
staging: rtl8723bs: fix mismatched free of HalData in rtw_sd -
CVE-2026-100079
usb: typec: ucsi: unregister debugfs entries on teardown
V. Comments for CVE-2026-93793
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