BUG: memory leak unreferenced object 0xffff88800e998f80 (size 32): comm "syz-executor.4", pid 9540, jiffies 4296280545 (age 21.170s) hex dump (first 32 bytes): 39 70 2d 66 63 61 6c 6c 2d 63 61 63 68 65 2d 33 9p-fcall-cache-3 30 38 00 0e 80 88 ff ff 00 00 00 00 00 00 00 00 08.............. backtrace: [<0000000078683014>] kstrdup+0x36/0x70 mm/util.c:60 [<00000000c789b7ad>] kstrdup_const+0x53/0x80 mm/util.c:83 [<00000000b81eb86b>] kvasprintf_const+0x10c/0x1a0 lib/kasprintf.c:48 [<00000000867c771c>] kobject_set_name_vargs+0x56/0x150 lib/kobject.c:297 [<000000009a8b358d>] kobject_add_varg lib/kobject.c:392 [inline] [<000000009a8b358d>] kobject_init_and_add+0xc9/0x160 lib/kobject.c:481 [<0000000053d11d7a>] sysfs_slab_add+0x172/0x200 mm/slub.c:5626 [<000000009acdfa11>] __kmem_cache_create+0x3db/0x520 mm/slub.c:4445 [<000000004f6e44c5>] create_cache mm/slab_common.c:255 [inline] [<000000004f6e44c5>] kmem_cache_create_usercopy+0x1db/0x2f0 mm/slab_common.c:350 [<00000000108c9143>] p9_client_create+0xc6a/0x1230 net/9p/client.c:1074 [<00000000a0500522>] v9fs_session_init+0x1dd/0x1680 fs/9p/v9fs.c:406 [<000000003a510efe>] v9fs_mount+0x79/0x8f0 fs/9p/vfs_super.c:126 [<000000003700e947>] legacy_get_tree+0x105/0x220 fs/fs_context.c:593 [<000000009730998f>] vfs_get_tree+0x8e/0x300 fs/super.c:1572 [<000000008ea53228>] do_new_mount fs/namespace.c:2918 [inline] [<000000008ea53228>] path_mount+0x1429/0x2120 fs/namespace.c:3248 [<00000000992ab434>] do_mount fs/namespace.c:3261 [inline] [<00000000992ab434>] __do_sys_mount fs/namespace.c:3469 [inline] [<00000000992ab434>] __se_sys_mount fs/namespace.c:3446 [inline] [<00000000992ab434>] __x64_sys_mount+0x282/0x300 fs/namespace.c:3446 [<0000000039b3eefe>] do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 BUG: leak checking failed