CVE-2021-47079— platform/x86: ideapad-laptop: fix a NULL pointer dereference
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 6
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I. Basic Information for CVE-2021-47079
Vulnerability Information
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Vulnerability Title
platform/x86: ideapad-laptop: fix a NULL pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: platform/x86: ideapad-laptop: fix a NULL pointer dereference The third parameter of dytc_cql_command should not be NULL since it will be dereferenced immediately.
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NULL 指针取消引用。
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
II. Public POCs for CVE-2021-47079
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Other References for CVE-2021-47079 (2)
Same Patch Batch · Linux · 2024-03-01 · 13 CVEs total
| CVE-2021-47081 | 7.8 HIGH | habanalabs/gaudi: Fix a potential use after free in gaudi_memset_device_memory |
| CVE-2021-47078 | 7.8 HIGH | RDMA/rxe: Clear all QP fields if creation failed |
| CVE-2021-47069 | 7.8 HIGH | ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry |
| CVE-2021-47080 | RDMA/core: Prevent divide-by-zero error triggered by the user | |
| CVE-2021-47077 | scsi: qedf: Add pointer checks in qedf_update_link_speed() | |
| CVE-2021-47075 | nvmet: fix memory leak in nvmet_alloc_ctrl() | |
| CVE-2021-47076 | RDMA/rxe: Return CQE error if invalid lkey was supplied | |
| CVE-2021-47074 | nvme-loop: fix memory leak in nvme_loop_create_ctrl() | |
| CVE-2021-47072 | btrfs: fix removed dentries still existing after log is synced | |
| CVE-2021-47073 | platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios | |
| CVE-2021-47071 | uio_hv_generic: Fix a memory leak in error handling paths | |
| CVE-2021-47070 | uio_hv_generic: Fix another memory leak in error handling paths |
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
V. Comments for CVE-2021-47079
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