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I. Basic Information for CVE-2025-39931
Vulnerability Information

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Vulnerability Title
crypto: af_alg - Set merge to zero early in af_alg_sendmsg
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Set merge to zero early in af_alg_sendmsg If an error causes af_alg_sendmsg to abort, ctx->merge may contain a garbage value from the previous loop. This may then trigger a crash on the next entry into af_alg_sendmsg when it attempts to do a merge that can't be done. Fix this by setting ctx->merge to zero near the start of the loop.
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,该漏洞源于未正确设置ctx->merge值,可能导致崩溃。
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 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 ~ 6241b9e2809b12da9130894cf5beddf088dc1b8a -
LinuxLinux 2.6.38 -
II. Public POCs for CVE-2025-39931
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III. Intelligence Information for CVE-2025-39931
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IV. Related Vulnerabilities
V. Comments for CVE-2025-39931

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