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CVE-2022-50358— brcmfmac: return error when getting invalid max_flowrings from dongle

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.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未正确处理dongle返回的无效max_flowrings值，可能导致内核崩溃。

AI Predicted 5.3 Difficulty: Theoretical EPSS 0.29% · P21

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 9e37f045d5e7f33450515f237c2f6f6bfee137dd< 3cc9299036bdb647408e11e41de3eb1ff6d428cd affected
9e37f045d5e7f33450515f237c2f6f6bfee137dd< 2e8bb402b060a6c22160de3d72cee057698177c8 affected
9e37f045d5e7f33450515f237c2f6f6bfee137dd< 10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6 affected
9e37f045d5e7f33450515f237c2f6f6bfee137dd< 87f126b25fa8562196f0f4c0aa46a446026199bf affected
9e37f045d5e7f33450515f237c2f6f6bfee137dd< 200347eb3b2608cc8b54c13dd1d5e03809ba2eb2 affected
9e37f045d5e7f33450515f237c2f6f6bfee137dd< 2aca4f3734bd717e04943ddf340d49ab62299a00 affected
3.17 affected
< 3.17 unaffected
… +6 more rows
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I. Basic Information for CVE-2022-50358

Vulnerability Information
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Vulnerability Title
brcmfmac: return error when getting invalid max_flowrings from dongle
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: brcmfmac: return error when getting invalid max_flowrings from dongle When firmware hit trap at initialization, host will read abnormal max_flowrings number from dongle, and it will cause kernel panic when doing iowrite to initialize dongle ring. To detect this error at early stage, we directly return error when getting invalid max_flowrings(>256).
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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未正确处理dongle返回的无效max_flowrings值，可能导致内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 9e37f045d5e7f33450515f237c2f6f6bfee137dd ~ 3cc9299036bdb647408e11e41de3eb1ff6d428cd -
Linux Linux 3.17 -

II. Public POCs for CVE-2022-50358

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III. Intelligence Information for CVE-2022-50358

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Same Patch Batch · Linux · 2025-09-17 · 56 CVEs total

CVE-2023-53338 9.8 CRITICAL lwt: Fix return values of BPF xmit ops
CVE-2023-53360 9.8 CRITICAL NFSv4.2: Rework scratch handling for READ_PLUS (again)
CVE-2022-50363 9.8 CRITICAL skmsg: pass gfp argument to alloc_sk_msg()
CVE-2022-50373 9.8 CRITICAL fs: dlm: fix race in lowcomms
CVE-2023-53358 8.8 HIGH ksmbd: fix racy issue under cocurrent smb2 tree disconnect
CVE-2022-50368 7.8 HIGH drm/msm/dsi: fix memory corruption with too many bridges
CVE-2022-50367 7.8 HIGH fs: fix UAF/GPF bug in nilfs_mdt_destroy
CVE-2023-53340 7.8 HIGH net/mlx5: Collect command failures data only for known commands
CVE-2022-50362 7.8 HIGH dmaengine: hisilicon: Add multi-thread support for a DMA channel
CVE-2023-53354 7.8 HIGH skbuff: skb_segment, Call zero copy functions before using skbuff frags
CVE-2022-50355 7.8 HIGH staging: vt6655: fix some erroneous memory clean-up loops
CVE-2022-50354 7.8 HIGH drm/amdkfd: Fix kfd_process_device_init_vm error handling
CVE-2022-50365 7.5 HIGH skbuff: Account for tail adjustment during pull operations
CVE-2023-53335 7.5 HIGH RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
CVE-2022-50374 Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
CVE-2022-50353 mmc: wmt-sdmmc: fix return value check of mmc_add_host()
CVE-2023-53337 nilfs2: do not write dirty data after degenerating to read-only
CVE-2022-50372 cifs: Fix memory leak when build ntlmssp negotiate blob failed
CVE-2022-50371 led: qcom-lpg: Fix sleeping in atomic
CVE-2023-53336 media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings

Showing top 20 of 56 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50358

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