CVE-2025-38274

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxccbc1c302115d8125d6a96296ba52702c6de0ade < e69e2cfd8b38d9463a250e153ef4963a604d61e9affected
LinuxLinuxccbc1c302115d8125d6a96296ba52702c6de0ade < 8b2230ac7ff0aeb2441132df638a82ab124f8624affected
LinuxLinuxccbc1c302115d8125d6a96296ba52702c6de0ade < eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718daffected
LinuxLinuxccbc1c302115d8125d6a96296ba52702c6de0ade < 6ebf1982038af12f3588417e4fd0417d2551da28affected
LinuxLinux6.6affected
LinuxLinux0 < 6.6unaffected
LinuxLinux6.6.94 <= 6.6.*unaffected
LinuxLinux6.12.34 <= 6.12.*unaffected
LinuxLinux6.15.3 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

References