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CVE-2021-47058— regmap: set debugfs_name to NULL after it is freed

EPSS 0.02% · P4
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I. Basic Information for CVE-2021-47058

Vulnerability Information
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Vulnerability Title
regmap: set debugfs_name to NULL after it is freed
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: regmap: set debugfs_name to NULL after it is freed There is a upstream commit cffa4b2122f5("regmap:debugfs: Fix a memory leak when calling regmap_attach_dev") that adds a if condition when create name for debugfs_name. With below function invoking logical, debugfs_name is freed in regmap_debugfs_exit(), but it is not created again because of the if condition introduced by above commit. regmap_reinit_cache() regmap_debugfs_exit() ... regmap_debugfs_init() So, set debugfs_name to NULL after it is freed.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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问题。
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 5b654b03007917f3f1015b2a5c288c1ea6ae8f65 ~ 2dc1554d5f0fdaf47cc5bea442b84b9226fea867 -
LinuxLinux 5.11 -

II. Public POCs for CVE-2021-47058

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III. Intelligence Information for CVE-2021-47058

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Same Patch Batch · Linux · 2024-02-29 · 53 CVEs total

CVE-2021-47016m68k: mvme147,mvme16x: Don't wipe PCC timer config bits
CVE-2021-47068net/nfc: fix use-after-free llcp_sock_bind/connect
CVE-2021-47067soc/tegra: regulators: Fix locking up when voltage-spread is out of range
CVE-2021-47062KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs
CVE-2021-47065rtw88: Fix array overrun in rtw_get_tx_power_params()
CVE-2021-47064mt76: fix potential DMA mapping leak
CVE-2021-47063drm: bridge/panel: Cleanup connector on bridge detach
CVE-2021-47066async_xor: increase src_offs when dropping destination page
CVE-2021-47054bus: qcom: Put child node before return
CVE-2021-47020soundwire: stream: fix memory leak in stream config error path
CVE-2021-47055mtd: require write permissions for locking and badblock ioctls
CVE-2021-46959spi: Fix use-after-free with devm_spi_alloc_*
CVE-2024-26620s390/vfio-ap: always filter entire AP matrix
CVE-2024-26619riscv: Fix module loading free order
CVE-2024-26618arm64/sme: Always exit sme_alloc() early with existing storage
CVE-2024-26617fs/proc/task_mmu: move mmu notification mechanism inside mm lock
CVE-2024-26616btrfs: scrub: avoid use-after-free when chunk length is not 64K aligned
CVE-2024-26615net/smc: fix illegal rmb_desc access in SMC-D connection dump
CVE-2024-26614tcp: make sure init the accept_queue's spinlocks once
CVE-2024-26612netfs, fscache: Prevent Oops in fscache_put_cache()

Showing top 20 of 53 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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