CVE-2025-37955
virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()
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virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()
In the Linux kernel, the following vulnerability has been resolved: virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable() The selftests added to our CI by Bui Quang Minh recently reveals that there is a mem leak on the error path of virtnet_xsk_pool_enable(): unreferenced object 0xffff88800a68a000 (size 2048): comm "xdp_helper", pid 318, jiffies 4294692778 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kvmalloc_node_noprof+0x402/0x570 virtnet_xsk_pool_enable+0x293/0x6a0 (drivers/net/virtio_net.c:5882) xp_assign_dev+0x369/0x670 (net/xdp/xsk_buff_pool.c:226) xsk_bind+0x6a5/0x1ae0 __sys_bind+0x15e/0x230 __x64_sys_bind+0x72/0xb0 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Reserved 2025-04-16 | Published 2025-05-20 | Updated 2025-05-26 | Assigner Linuxgit.kernel.org/...c/94a6f6c204abb2b2dcd2ce287536cc924469cfb5
git.kernel.org/...c/ba6917810bb4a5a32661fa941717399052b3f0d9
git.kernel.org/...c/4397684a292a71fbc1e815c3e283f7490ddce5ae
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