CVE-2025-37955

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()<br /> <br /> The selftests added to our CI by Bui Quang Minh recently reveals<br /> that there is a mem leak on the error path of virtnet_xsk_pool_enable():<br /> <br /> unreferenced object 0xffff88800a68a000 (size 2048):<br /> comm "xdp_helper", pid 318, jiffies 4294692778<br /> hex dump (first 32 bytes):<br /> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................<br /> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................<br /> backtrace (crc 0):<br /> __kvmalloc_node_noprof+0x402/0x570<br /> virtnet_xsk_pool_enable+0x293/0x6a0 (drivers/net/virtio_net.c:5882)<br /> xp_assign_dev+0x369/0x670 (net/xdp/xsk_buff_pool.c:226)<br /> xsk_bind+0x6a5/0x1ae0<br /> __sys_bind+0x15e/0x230<br /> __x64_sys_bind+0x72/0xb0<br /> do_syscall_64+0xc1/0x1d0<br /> entry_SYSCALL_64_after_hwframe+0x77/0x7f