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CVE-2021-47252— batman-adv: Avoid WARN_ON timing related checks

AI Predicted 3.3 Difficulty: Theoretical EPSS 0.23% · P13

Possible ATT&CK Techniques 1AI

T1498 · Network Denial of Service

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxef0a937f7a1450d3a133ccd83c9c7d07587e7a00< 45011f2973f6b52cf50db397bb27bf805f5f0e7faffected
ef0a937f7a1450d3a133ccd83c9c7d07587e7a00< 6031daaaf6d5c359c99dfffa102e332df234ff09affected
ef0a937f7a1450d3a133ccd83c9c7d07587e7a00< 77a99aad5bc3ea105806ebae6be3cbadc2fc615eaffected
ef0a937f7a1450d3a133ccd83c9c7d07587e7a00< e8e9d2968a9d08bf5c683afca182f1537edebf8daffected
ef0a937f7a1450d3a133ccd83c9c7d07587e7a00< e7fbd8184fa9e85f0d648c499841cb7ff6dec9f4affected
ef0a937f7a1450d3a133ccd83c9c7d07587e7a00< 282baa8104af44e04c4af3e7f933b44267c7f86faffected
ef0a937f7a1450d3a133ccd83c9c7d07587e7a00< 2eb4e0b3631832a4291c8bf4c9db873f60b128c8affected
ef0a937f7a1450d3a133ccd83c9c7d07587e7a00< 9f460ae31c4435fd022c443a6029352217a16ac1affected
… +10 more rows
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I. Basic Information for CVE-2021-47252

Vulnerability Information
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Vulnerability Title
batman-adv: Avoid WARN_ON timing related checks
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid WARN_ON timing related checks The soft/batadv interface for a queued OGM can be changed during the time the OGM was queued for transmission and when the OGM is actually transmitted by the worker. But WARN_ON must be used to denote kernel bugs and not to print simple warnings. A warning can simply be printed using pr_warn.
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。攻击者利用该漏洞导致内核错误。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux ef0a937f7a1450d3a133ccd83c9c7d07587e7a00 ~ 45011f2973f6b52cf50db397bb27bf805f5f0e7f -
LinuxLinux 3.14 -

II. Public POCs for CVE-2021-47252

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III. Intelligence Information for CVE-2021-47252

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Other References for CVE-2021-47252 (8)

Same Patch Batch · Linux · 2024-05-21 · 361 CVEs total

CVE-2023-527419.8 CRITICALcifs: Fix use-after-free in rdata->read_into_pages()
CVE-2021-473789.8 CRITICALnvme-rdma: destroy cm id before destroy qp to avoid use after free
CVE-2023-527559.8 CRITICALksmbd: fix slab out of bounds write in smb_inherit_dacl()
CVE-2021-474279.8 CRITICALscsi: iscsi: Fix iscsi_task use after free
CVE-2023-527329.8 CRITICALceph: blocklist the kclient when receiving corrupted snap trace
CVE-2021-473289.8 CRITICALscsi: iscsi: Fix conn use after free during resets
CVE-2021-472329.8 CRITICALcan: j1939: fix Use-after-Free, hold skb ref while in use
CVE-2023-528468.8 HIGHhsr: Prevent use after free in prp_create_tagged_frame()
CVE-2023-527698.8 HIGHwifi: ath12k: fix htt mlo-offset event locking
CVE-2023-527908.8 HIGHswiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC
CVE-2021-473088.8 HIGHscsi: libfc: Fix array index out of bound exception
CVE-2021-473908.8 HIGHKVM: x86: Fix stack-out-of-bounds memory access from ioapic_write_indirect()
CVE-2023-528018.8 HIGHiommufd: Fix missing update of domains_itree after splitting iopt_area
CVE-2023-527768.8 HIGHwifi: ath12k: fix dfs-radar and temperature event locking
CVE-2023-527988.8 HIGHwifi: ath11k: fix dfs radar event locking
CVE-2021-473888.8 HIGHmac80211: fix use-after-free in CCMP/GCMP RX
CVE-2023-528298.4 HIGHwifi: ath12k: fix possible out-of-bound write in ath12k_wmi_ext_hal_reg_caps()
CVE-2021-472408.4 HIGHnet: qrtr: fix OOB Read in qrtr_endpoint_post
CVE-2021-473528.4 HIGHvirtio-net: Add validation for used length
CVE-2021-472448.2 HIGHmptcp: Fix out of bounds when parsing TCP options

Showing top 20 of 361 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47252

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