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CVE-2021-47651— soc: qcom: rpmpd: Check for null return of devm_kcalloc

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，该漏洞源于未检查devm_kcalloc的返回值为空。

AI Predicted 5.5 Difficulty: Easy EPSS 0.24% · P15

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux bbe3a66c3f5a65fb3d702351bac2a6033944d389< 755dbc3d73789ac9f0017c729abf5e4b153bf799 affected
bbe3a66c3f5a65fb3d702351bac2a6033944d389< b5d6eba71997b6d661935d2b15094ac7f9f6132d affected
bbe3a66c3f5a65fb3d702351bac2a6033944d389< 724376c30af5a57686b223dbcd6188e07d2a1de2 affected
bbe3a66c3f5a65fb3d702351bac2a6033944d389< 84b89fa877ad576e9ee8130f412cfd592f274508 affected
bbe3a66c3f5a65fb3d702351bac2a6033944d389< 31b5124d742969ea8bf7a1360596f548ca23e770 affected
bbe3a66c3f5a65fb3d702351bac2a6033944d389< 5a811126d38f9767a20cc271b34db7c8efc5a46c affected
5.1 affected
< 5.1 unaffected
… +6 more rows
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I. Basic Information for CVE-2021-47651

Vulnerability Information
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Vulnerability Title
soc: qcom: rpmpd: Check for null return of devm_kcalloc
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: soc: qcom: rpmpd: Check for null return of devm_kcalloc Because of the possible failure of the allocation, data->domains might be NULL pointer and will cause the dereference of the NULL pointer later. Therefore, it might be better to check it and directly return -ENOMEM without releasing data manually if fails, because the comment of the devm_kmalloc() says "Memory allocated with this function is automatically freed on driver detach.".
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，该漏洞源于未检查devm_kcalloc的返回值为空。
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 bbe3a66c3f5a65fb3d702351bac2a6033944d389 ~ 755dbc3d73789ac9f0017c729abf5e4b153bf799 -
Linux Linux 5.1 -

II. Public POCs for CVE-2021-47651

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III. Intelligence Information for CVE-2021-47651

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Patches & Fixes for CVE-2021-47651 (6)

Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total

CVE-2022-49149 9.8 CRITICAL rxrpc: Fix call timer start racing with call destruction
CVE-2022-49280 9.8 CRITICAL NFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-49093 9.8 CRITICAL skbuff: fix coalescing for page_pool fragment recycling
CVE-2022-49094 9.8 CRITICAL net/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-49356 9.8 CRITICAL SUNRPC: Trap RDMA segment overflows
CVE-2022-49407 9.8 CRITICAL dlm: fix plock invalid read
CVE-2022-49418 9.8 CRITICAL NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-49561 9.8 CRITICAL netfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-49362 9.8 CRITICAL NFSD: Fix potential use-after-free in nfsd_file_put()
CVE-2022-49194 9.8 CRITICAL net: bcmgenet: Use stronger register read/writes to assure ordering
CVE-2022-49260 9.8 CRITICAL crypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-49201 9.8 CRITICAL ibmvnic: fix race between xmit and reset
CVE-2022-49058 9.1 CRITICAL cifs: potential buffer overflow in handling symlinks
CVE-2022-49328 8.8 HIGH mt76: fix use-after-free by removing a non-RCU wcid pointer
CVE-2022-49238 8.8 HIGH ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855
CVE-2022-49471 8.8 HIGH rtw89: cfo: check mac_id to avoid out-of-bounds
CVE-2022-49159 8.8 HIGH scsi: qla2xxx: Implement ref count for SRB
CVE-2022-49500 8.8 HIGH wl1251: dynamically allocate memory used for DMA
CVE-2022-49479 8.8 HIGH mt76: fix tx status related use-after-free race on station removal
CVE-2022-49519 8.8 HIGH ath10k: skip ath10k_halt during suspend for driver state RESTARTING

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47651

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