CVE-2025-38274 Information

Jul 12, 2025 cve

Description

In the Linux kernel the following vulnerability has been resolved:

fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt()

fpga_mgr_test_img_load_sgt() allocates memory for sgt using kunit_kzalloc() however it does not check if the allocation failed. It then passes sgt to sg_alloc_table() which passes it to __sg_alloc_table(). This function calls memset() on sgt in an attempt to zero it out. If the allocation fails then sgt will be NULL and the memset will trigger a NULL pointer dereference.

Fix this by checking the allocation with KUNIT_ASSERT_NOT_ERR_OR_NULL().

Reference

https://git.kernel.org/stable/c/6ebf1982038af12f3588417e4fd0417d2551da28 https://git.kernel.org/stable/c/8b2230ac7ff0aeb2441132df638a82ab124f8624 https://git.kernel.org/stable/c/e69e2cfd8b38d9463a250e153ef4963a604d61e9 https://git.kernel.org/stable/c/eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d

CNNVD-202507-1396 (Published: 2025-07-10)

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