executing program executing program executing program BUG: memory leak unreferenced object 0xffff8881224418c0 (size 32): comm "syz-executor274", pid 7297, jiffies 4294942326 (age 12.310s) hex dump (first 32 bytes): 00 64 6d 61 62 75 66 3a 00 00 00 00 00 00 00 00 .dmabuf:........ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000045c0507e>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<0000000045c0507e>] slab_post_alloc_hook mm/slab.h:586 [inline] [<0000000045c0507e>] slab_alloc mm/slab.c:3320 [inline] [<0000000045c0507e>] __do_kmalloc mm/slab.c:3654 [inline] [<0000000045c0507e>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3671 [<00000000df78cd27>] memdup_user+0x26/0xc0 mm/util.c:172 [<00000000657f4608>] strndup_user+0x62/0x80 mm/util.c:231 [<000000002a37cc50>] dma_buf_set_name drivers/dma-buf/dma-buf.c:331 [inline] [<000000002a37cc50>] dma_buf_ioctl+0x60/0x1e0 drivers/dma-buf/dma-buf.c:391 [<00000000e2dc563b>] vfs_ioctl fs/ioctl.c:47 [inline] [<00000000e2dc563b>] ksys_ioctl+0xb4/0xe0 fs/ioctl.c:747 [<0000000051bd3056>] __do_sys_ioctl fs/ioctl.c:756 [inline] [<0000000051bd3056>] __se_sys_ioctl fs/ioctl.c:754 [inline] [<0000000051bd3056>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:754 [<0000000043cc4978>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294 [<00000000a4345d18>] entry_SYSCALL_64_after_hwframe+0x44/0xa9