CVE ID:	CVE-2024-35827
Description:	In the Linux kernel, the following vulnerability has been resolved: io_uring/net: fix overflow check in io_recvmsg_mshot_prep() The "controllen" variable is type size_t (unsigned long). Casting it to int could lead to an integer underflow. The check_add_overflow() function considers the type of the destination which is type int. If we add two positive values and the result cannot fit in an integer then that's counted as an overflow. However, if we cast "controllen" to an int and it turns negative, then negative values *can* fit into an int type so there is no overflow. Good: 100 + (unsigned long)-4 = 96 <-- overflow Bad: 100 + (int)-4 = 96 <-- no overflow I deleted the cast of the sizeof() as well. That's not a bug but the cast is unnecessary.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2024-35827 https://git.kernel.org/stable/c/0c8c74bb59e7d77554016efc34c2d10376985e5e https://git.kernel.org/stable/c/0c8c74bb59e7d77554016efc34c2d10376985e5e https://git.kernel.org/stable/c/59a534690ecc3af72c6ab121aeac1237a4adae66 https://git.kernel.org/stable/c/59a534690ecc3af72c6ab121aeac1237a4adae66 https://git.kernel.org/stable/c/868ec868616438df487b9e2baa5a99f8662cc47c https://git.kernel.org/stable/c/868ec868616438df487b9e2baa5a99f8662cc47c https://git.kernel.org/stable/c/8ede3db5061bb1fe28e2c9683329aafa89d2b1b4 https://git.kernel.org/stable/c/8ede3db5061bb1fe28e2c9683329aafa89d2b1b4 https://git.kernel.org/stable/c/b6563ad0d599110bd5cf8f56c47d279c3ed796fe https://git.kernel.org/stable/c/b6563ad0d599110bd5cf8f56c47d279c3ed796fe