executing program executing program executing program BUG: memory leak unreferenced object 0xffff888118c76e60 (size 32): comm "syz-executor621", pid 7174, jiffies 4294946600 (age 19.500s) 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: [<00000000dafb1c97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000dafb1c97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000dafb1c97>] slab_alloc mm/slab.c:3320 [inline] [<00000000dafb1c97>] __do_kmalloc mm/slab.c:3654 [inline] [<00000000dafb1c97>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3671 [<000000003c70b03a>] memdup_user+0x26/0xc0 mm/util.c:172 [<00000000fbef5ab6>] strndup_user+0x62/0x80 mm/util.c:231 [<0000000040a89f05>] dma_buf_set_name drivers/dma-buf/dma-buf.c:331 [inline] [<0000000040a89f05>] dma_buf_ioctl+0x60/0x1e0 drivers/dma-buf/dma-buf.c:391 [<0000000095cea627>] vfs_ioctl fs/ioctl.c:47 [inline] [<0000000095cea627>] ksys_ioctl+0xb4/0xe0 fs/ioctl.c:763 [<00000000ebe850b0>] __do_sys_ioctl fs/ioctl.c:772 [inline] [<00000000ebe850b0>] __se_sys_ioctl fs/ioctl.c:770 [inline] [<00000000ebe850b0>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:770 [<000000002e5a8306>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294 [<00000000ed10c226>] entry_SYSCALL_64_after_hwframe+0x44/0xa9