CVE-2025-38444

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> raid10: cleanup memleak at raid10_make_request<br /> <br /> If raid10_read_request or raid10_write_request registers a new<br /> request and the REQ_NOWAIT flag is set, the code does not<br /> free the malloc from the mempool.<br /> <br /> unreferenced object 0xffff8884802c3200 (size 192):<br /> comm "fio", pid 9197, jiffies 4298078271<br /> hex dump (first 32 bytes):<br /> 00 00 00 00 00 00 00 00 88 41 02 00 00 00 00 00 .........A......<br /> 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................<br /> backtrace (crc c1a049a2):<br /> __kmalloc+0x2bb/0x450<br /> mempool_alloc+0x11b/0x320<br /> raid10_make_request+0x19e/0x650 [raid10]<br /> md_handle_request+0x3b3/0x9e0<br /> __submit_bio+0x394/0x560<br /> __submit_bio_noacct+0x145/0x530<br /> submit_bio_noacct_nocheck+0x682/0x830<br /> __blkdev_direct_IO_async+0x4dc/0x6b0<br /> blkdev_read_iter+0x1e5/0x3b0<br /> __io_read+0x230/0x1110<br /> io_read+0x13/0x30<br /> io_issue_sqe+0x134/0x1180<br /> io_submit_sqes+0x48c/0xe90<br /> __do_sys_io_uring_enter+0x574/0x8b0<br /> do_syscall_64+0x5c/0xe0<br /> entry_SYSCALL_64_after_hwframe+0x76/0x7e<br /> <br /> V4: changing backing tree to see if CKI tests will pass.<br /> The patch code has not changed between any versions.