executing program BUG: memory leak unreferenced object 0xffff88811ebab380 (size 64): comm "syz-executor288", pid 7057, jiffies 4294943247 (age 7.910s) hex dump (first 32 bytes): 01 00 00 00 20 69 6f 63 00 00 00 00 64 65 76 2f .... ioc....dev/ 90 b3 ba 1e 81 88 ff ff 90 b3 ba 1e 81 88 ff ff ................ backtrace: [<00000000034a05c8>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000034a05c8>] slab_post_alloc_hook mm/slab.h:439 [inline] [<00000000034a05c8>] slab_alloc mm/slab.c:3326 [inline] [<00000000034a05c8>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553 [<00000000fed97212>] kmalloc include/linux/slab.h:547 [inline] [<00000000fed97212>] vhost_net_ubuf_alloc drivers/vhost/net.c:240 [inline] [<00000000fed97212>] vhost_net_set_backend drivers/vhost/net.c:1533 [inline] [<00000000fed97212>] vhost_net_ioctl+0xb43/0xc10 drivers/vhost/net.c:1715 [<0000000051d02825>] vfs_ioctl fs/ioctl.c:46 [inline] [<0000000051d02825>] file_ioctl fs/ioctl.c:509 [inline] [<0000000051d02825>] do_vfs_ioctl+0x62a/0x810 fs/ioctl.c:696 [<00000000f01ff2fd>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:713 [<00000000e4eccb18>] __do_sys_ioctl fs/ioctl.c:720 [inline] [<00000000e4eccb18>] __se_sys_ioctl fs/ioctl.c:718 [inline] [<00000000e4eccb18>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:718 [<00000000ce288124>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301 [<000000008a3324da>] entry_SYSCALL_64_after_hwframe+0x44/0xa9