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CVE-2021-46985— ACPI: scan: Fix a memory leak in an error handling path

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，该漏洞源于在某些情况下存在内存泄漏。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 24

VendorProduct Version RangeStatus
Linux Linux e5cdbe419004e172f642e876a671a9ff1c52f8bb< 6901a4f795e0e8d65ae779cb37fc22e0bf294712 affected
717d9d88fbd956ab03fad97266f6ce63a036e7f8< 5ab9857dde7c3ea3faef6b128d718cf8ba98721b affected
7385e438e1f31af5b86f72fd19b0dcd2738502c9< 69cc821e89ce572884548ac54c4f80eec7a837a5 affected
bc0b1a2036dd8072106ec81a8685ecb901f72ed6< dafd4c0b5e835db020cff11c74b4af9493a58e72 affected
4a5891992c680d69d7e490e4d0428d17779d8e85< e2381174daeae0ca35eddffef02dcc8de8c1ef8a affected
321dbe6c0b551f9f8030becc6900f77cf9bbb9ad< c5c8f6ffc942cf42f990f22e35bcf4cbe9d8c2fb affected
eb50aaf960e3bedfef79063411ffd670da94b84b< a7e17a8d421ae23c920240625b4413c7b94d94a4 affected
eb50aaf960e3bedfef79063411ffd670da94b84b< 0c8bd174f0fc131bc9dfab35cd8784f59045da87 affected
… +16 more rows
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I. Basic Information for CVE-2021-46985

Vulnerability Information
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Vulnerability Title
ACPI: scan: Fix a memory leak in an error handling path
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ACPI: scan: Fix a memory leak in an error handling path If 'acpi_device_set_name()' fails, we must free 'acpi_device_bus_id->bus_id' or there is a (potential) memory 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，该漏洞源于在某些情况下存在内存泄漏。
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 e5cdbe419004e172f642e876a671a9ff1c52f8bb ~ 6901a4f795e0e8d65ae779cb37fc22e0bf294712 -
Linux Linux 5.12 -

II. Public POCs for CVE-2021-46985

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III. Intelligence Information for CVE-2021-46985

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Other References for CVE-2021-46985 (8)

Same Patch Batch · Linux · 2024-02-28 · 86 CVEs total

CVE-2021-47013 9.8 CRITICAL net:emac/emac-mac: Fix a use after free in emac_mac_tx_buf_send
CVE-2021-46999 9.8 CRITICAL sctp: do asoc update earlier in sctp_sf_do_dupcook_a
CVE-2021-47036 9.8 CRITICAL udp: skip L4 aggregation for UDP tunnel packets
CVE-2021-47017 8.8 HIGH ath10k: Fix a use after free in ath10k_htc_send_bundle
CVE-2021-47035 8.8 HIGH iommu/vt-d: Remove WO permissions on second-level paging entries
CVE-2021-47049 8.4 HIGH Drivers: hv: vmbus: Use after free in __vmbus_open()
CVE-2021-47014 7.8 HIGH net/sched: act_ct: fix wild memory access when clearing fragments
CVE-2020-36785 7.8 HIGH media: atomisp: Fix use after free in atomisp_alloc_css_stat_bufs()
CVE-2021-47040 7.8 HIGH io_uring: fix overflows checks in provide buffers
CVE-2021-46998 7.8 HIGH ethernet:enic: Fix a use after free bug in enic_hard_start_xmit
CVE-2021-47048 7.8 HIGH spi: spi-zynqmp-gqspi: fix use-after-free in zynqmp_qspi_exec_op
CVE-2021-46993 7.8 HIGH sched: Fix out-of-bound access in uclamp
CVE-2021-46984 7.8 HIGH kyber: fix out of bounds access when preempted
CVE-2021-46992 7.8 HIGH netfilter: nftables: avoid overflows in nft_hash_buckets()
CVE-2021-46977 7.8 HIGH KVM: VMX: Disable preemption when probing user return MSRs
CVE-2021-47012 7.8 HIGH RDMA/siw: Fix a use after free in siw_alloc_mr
CVE-2021-47011 7.8 HIGH mm: memcontrol: slab: fix obtain a reference to a freeing memcg
CVE-2020-36787 7.8 HIGH media: aspeed: fix clock handling logic
CVE-2021-47041 7.5 HIGH nvmet-tcp: fix incorrect locking in state_change sk callback
CVE-2021-46983 7.5 HIGH nvmet-rdma: Fix NULL deref when SEND is completed with error

Showing top 20 of 86 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-46985

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