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CVE-2022-50657— riscv: mm: add missing memcpy in kasan_init

EPSS 0.02% · P6
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I. Basic Information for CVE-2022-50657

Vulnerability Information
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Vulnerability Title
riscv: mm: add missing memcpy in kasan_init
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: riscv: mm: add missing memcpy in kasan_init Hi Atish, It seems that the panic is due to the missing memcpy during kasan_init. Could you please check whether this patch is helpful? When doing kasan_populate, the new allocated base_pud/base_p4d should contain kasan_early_shadow_{pud, p4d}'s content. Add the missing memcpy to avoid page fault when read/write kasan shadow region. Tested on: - qemu with sv57 and CONFIG_KASAN on. - qemu with sv48 and CONFIG_KASAN on.
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RISC-V架构kasan_init中缺少内存拷贝，可能导致页面错误。
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 8fbdccd2b17335e1881a23865e98c63fcc345938 ~ ff0f6becf3a6f817838b6f80a2c9cca43dce0576 -
LinuxLinux 5.18 -

II. Public POCs for CVE-2022-50657

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III. Intelligence Information for CVE-2022-50657

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Same Patch Batch · Linux · 2025-12-09 · 152 CVEs total

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CVE-2023-53838f2fs: synchronize atomic write aborts
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CVE-2023-53831net: read sk->sk_family once in sk_mc_loop()
CVE-2023-53830platform/x86: think-lmi: Fix memory leak when showing current settings
CVE-2023-53829f2fs: flush inode if atomic file is aborted
CVE-2023-53828Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor()
CVE-2022-50675arm64: mte: Avoid setting PG_mte_tagged if no tags cleared or restored

Showing top 20 of 152 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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