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An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.

🗓️ 03 Sep 2025 22:38:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 3 Views

Integer overflow in Das U-Boot ext4fs_read_symlink enables overwrite via inode size 0xffffffff.

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03 Sep 2025 22:38Current
7High risk
Vulners AI Score7
CVSS 3.16.8 - 7.1
EPSS0.00365
SSVC
3