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CVE-2025-39920— pcmcia: Add error handling for add_interval() in do_validate_mem()

EPSS 0.01% · P2

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux7b4884ca8853a638df0eb5d251d80d67777b8b1a< 5b60ed401b47897352c520bc724c85aa908dedccaffected
7b4884ca8853a638df0eb5d251d80d67777b8b1a< ae184024ef31423e5beb44cf4f52999bbcf2fe5baffected
7b4884ca8853a638df0eb5d251d80d67777b8b1a< 85be7ef8c8e792a414940a38d94565dd48d2f236affected
7b4884ca8853a638df0eb5d251d80d67777b8b1a< 06b26e3099207c94b3d1be8565aedc6edc4f0a60affected
7b4884ca8853a638df0eb5d251d80d67777b8b1a< 8699358b6ac99b8ccc97ed9e6e3669ef8958ef7baffected
7b4884ca8853a638df0eb5d251d80d67777b8b1a< 289b58f8ff3198d091074a751d6b8f6827726f3eaffected
7b4884ca8853a638df0eb5d251d80d67777b8b1a< 369bf6e241506583f4ee7593c53b92e5a9f271b4affected
7b4884ca8853a638df0eb5d251d80d67777b8b1a< 4a81f78caa53e0633cf311ca1526377d9bff7479affected
… +10 more rows
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I. Basic Information for CVE-2025-39920

Vulnerability Information
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Vulnerability Title
pcmcia: Add error handling for add_interval() in do_validate_mem()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: pcmcia: Add error handling for add_interval() in do_validate_mem() In the do_validate_mem(), the call to add_interval() does not handle errors. If kmalloc() fails in add_interval(), it could result in a null pointer being inserted into the linked list, leading to illegal memory access when sub_interval() is called next. This patch adds an error handling for the add_interval(). If add_interval() returns an error, the function will return early with the error code.
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，该漏洞源于未处理add_interval错误，可能导致非法内存访问。
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 7b4884ca8853a638df0eb5d251d80d67777b8b1a ~ 5b60ed401b47897352c520bc724c85aa908dedcc -
LinuxLinux 2.6.34 -

II. Public POCs for CVE-2025-39920

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III. Intelligence Information for CVE-2025-39920

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Same Patch Batch · Linux · 2025-10-01 · 169 CVEs total

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CVE-2023-53489tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp.
CVE-2022-50469staging: rtl8723bs: fix potential memory leak in rtw_init_drv_sw()
CVE-2022-50468platform/chrome: cros_usbpd_notify: Fix error handling in cros_usbpd_notify_init()
CVE-2022-50465ext4: fix leaking uninitialized memory in fast-commit journal
CVE-2022-50463powerpc/52xx: Fix a resource leak in an error handling path
CVE-2022-50464mt76: mt7915: Fix PCI device refcount leak in mt7915_pci_init_hif2()
CVE-2022-50448mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in

Showing top 20 of 169 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39920

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