Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-47194— cfg80211: call cfg80211_stop_ap when switch from P2P_GO type

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，该漏洞源于从P2P_GO切换类型时未调用cfg80211_stop_ap，导致存在安全漏洞。

CVSS 7.8 · High EPSS 0.25% · P15

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux ac800140c20e7ae51117e71289065bedd4930fc2< 8f06bb8c216bcd172394f61e557727e691b4cb24 affected
ac800140c20e7ae51117e71289065bedd4930fc2< 0738cdb636c21ab552eaecf905efa4a6070e3ebc affected
ac800140c20e7ae51117e71289065bedd4930fc2< 4e458abbb4a523f1413bfe15c079cf4e24c15b21 affected
ac800140c20e7ae51117e71289065bedd4930fc2< b8a045e2a9b234cfbc06cf36923886164358ddec affected
ac800140c20e7ae51117e71289065bedd4930fc2< 52affc201fc22a1ab9a59ef0ed641a9adfcb8d13 affected
ac800140c20e7ae51117e71289065bedd4930fc2< 7b97b5776daa0b39dbdadfea176f9cc0646d4a66 affected
ac800140c20e7ae51117e71289065bedd4930fc2< 5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd affected
ac800140c20e7ae51117e71289065bedd4930fc2< 563fbefed46ae4c1f70cffb8eb54c02df480b2c2 affected
… +10 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-47194

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: cfg80211: call cfg80211_stop_ap when switch from P2P_GO type If the userspace tools switch from NL80211_IFTYPE_P2P_GO to NL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it does not call the cleanup cfg80211_stop_ap(), this leads to the initialization of in-use data. For example, this path re-init the sdata->assigned_chanctx_list while it is still an element of assigned_vifs list, and makes that linked list corrupt.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/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
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，该漏洞源于从P2P_GO切换类型时未调用cfg80211_stop_ap，导致存在安全漏洞。
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 ac800140c20e7ae51117e71289065bedd4930fc2 ~ 8f06bb8c216bcd172394f61e557727e691b4cb24 -
Linux Linux 3.6 -

II. Public POCs for CVE-2021-47194

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-47194

请登录查看更多情报信息。

Other References for CVE-2021-47194 (8)

Same Patch Batch · Linux · 2024-04-10 · 39 CVEs total

CVE-2021-47215 9.8 CRITICAL net/mlx5e: kTLS, Fix crash in RX resync flow
CVE-2021-47203 8.8 HIGH scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq()
CVE-2021-47183 8.8 HIGH scsi: lpfc: Fix link down processing to address NULL pointer dereference
CVE-2021-47184 8.8 HIGH i40e: Fix NULL ptr dereference on VSI filter sync
CVE-2021-47201 7.8 HIGH iavf: free q_vectors before queues in iavf_disable_vf
CVE-2021-47200 7.8 HIGH drm/prime: Fix use after free in mmap with drm_gem_ttm_mmap
CVE-2024-26815 7.8 HIGH net/sched: taprio: proper TCA_TAPRIO_TC_ENTRY_INDEX check
CVE-2021-47197 7.8 HIGH net/mlx5e: nullify cq->dbg pointer in mlx5_debug_cq_remove()
CVE-2021-47188 7.8 HIGH scsi: ufs: core: Improve SCSI abort handling
CVE-2021-47189 7.8 HIGH btrfs: fix memory ordering between normal and ordered work functions
CVE-2021-47196 7.8 HIGH RDMA/core: Set send and receive CQ before forwarding to the driver
CVE-2021-47209 7.8 HIGH sched/fair: Prevent dead task groups from regaining cfs_rq's
CVE-2021-47219 7.1 HIGH scsi: scsi_debug: Fix out-of-bound read in resp_report_tgtpgs()
CVE-2021-47191 7.1 HIGH scsi: scsi_debug: Fix out-of-bound read in resp_readcap16()
CVE-2021-47211 ALSA: usb-audio: fix null pointer dereference on pointer cs_desc
CVE-2021-47210 usb: typec: tipd: Remove WARN_ON in tps6598x_block_read
CVE-2021-47212 net/mlx5: Update error handler for UCTX and UMEM
CVE-2021-47214 hugetlb, userfaultfd: fix reservation restore on userfaultfd error
CVE-2021-47207 ALSA: gus: fix null pointer dereference on pointer block
CVE-2021-47216 scsi: advansys: Fix kernel pointer leak

Showing top 20 of 39 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47194

No comments yet

Leave a comment