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CVE-2021-47104— IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()

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，该漏洞源于存在内存泄漏。

AI Predicted 5.3 Difficulty: Trivial EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 26

VendorProduct Version RangeStatus
Linux Linux bda41654b6e0c125a624ca35d6d20beb8015b5d0< 1ced0a3015a95c6a6db45e37250912c4c86697ab affected
3f57c3f67fd93b4da86aeffea1ca32c484d054ad< 76b648063eb36c72dfc0a6896de8a0a7d2c7841c affected
60833707b968d5ae02a75edb7886dcd4a957cf0d< d53456492b5d02033c73dfa0f3b94c86337791ba affected
73d2892148aa4397a885b4f4afcfc5b27a325c42< 0aaec9c5f60754b56f84460ea439b8c5e91f4caa affected
0f8cdfff06829a0b0348b6debc29ff6a61967724< 79dcbd8176152b860028b62f81a635d987365752 affected
c3e17e58f571f34c51aeb17274ed02c2ed5cf780< 7cf6466e00a77b0a914b7b2c28a1fc7947d55e59 affected
d39bf40e55e666b5905fdbd46a0dced030ce87be< aefcc25f3a0cd28a87d11d41d30419a12cd26a34 affected
d39bf40e55e666b5905fdbd46a0dced030ce87be< bee90911e0138c76ee67458ac0d58b38a3190f65 affected
… +18 more rows
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I. Basic Information for CVE-2021-47104

Vulnerability Information
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Vulnerability Title
IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: IB/qib: Fix memory leak in qib_user_sdma_queue_pkts() The wrong goto label was used for the error case and missed cleanup of the pkt allocation. Addresses-Coverity-ID: 1493352 ("Resource leak")
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，该漏洞源于存在内存泄漏。
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 bda41654b6e0c125a624ca35d6d20beb8015b5d0 ~ 1ced0a3015a95c6a6db45e37250912c4c86697ab -
Linux Linux 5.15 -

II. Public POCs for CVE-2021-47104

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III. Intelligence Information for CVE-2021-47104

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Other References for CVE-2021-47104 (8)

Same Patch Batch · Linux · 2024-03-04 · 26 CVEs total

CVE-2021-47107 9.8 CRITICAL NFSD: Fix READDIR buffer overflow
CVE-2021-47103 9.8 CRITICAL inet: fully convert sk->sk_rx_dst to RCU rules
CVE-2021-47082 7.8 HIGH tun: avoid double free in tun_free_netdev
CVE-2021-47087 7.8 HIGH tee: optee: Fix incorrect page free bug
CVE-2021-47106 7.8 HIGH netfilter: nf_tables: fix use-after-free in nft_set_catchall_destroy()
CVE-2021-47094 7.8 HIGH KVM: x86/mmu: Don't advance iterator after restart due to yielding
CVE-2021-47099 7.8 HIGH veth: ensure skb entering GRO are not cloned.
CVE-2021-47083 7.1 HIGH pinctrl: mediatek: fix global-out-of-bounds issue
CVE-2021-47102 7.1 HIGH net: marvell: prestera: fix incorrect structure access
CVE-2021-47095 ipmi: ssif: initialize ssif_info->client early
CVE-2021-47108 drm/mediatek: hdmi: Perform NULL pointer check for mtk_hdmi_conf
CVE-2021-47105 ice: xsk: return xsk buffers back to pool when cleaning the ring
CVE-2021-47101 asix: fix uninit-value in asix_mdio_read()
CVE-2021-47100 ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module
CVE-2021-47098 hwmon: (lm90) Prevent integer overflow/underflow in hysteresis calculations
CVE-2021-47097 Input: elantech - fix stack out of bound access in elantech_change_report_id()
CVE-2021-47096 ALSA: rawmidi - fix the uninitalized user_pversion
CVE-2024-26622 tomoyo: fix UAF write bug in tomoyo_write_control()
CVE-2021-47093 platform/x86: intel_pmc_core: fix memleak on registration failure
CVE-2021-47092 KVM: VMX: Always clear vmx->fail on emulation_required

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47104

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