BUG: memory leak
unreferenced object 0xffff888106f378e0 (size 32):
  comm "syz-executor.0", pid 8376, jiffies 4295047030 (age 9.180s)
  hex dump (first 32 bytes):
    34 32 39 35 30 34 37 30 33 30 00 72 74 75 61 6c  4295047030.rtual
    2f 62 64 69 2f 39 70 2d 31 31 00 00 00 00 00 00  /bdi/9p-11......
  backtrace:
    [<00000000fcf22eda>] kmalloc include/linux/slab.h:555 [inline]
    [<00000000fcf22eda>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<00000000fcf22eda>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000003a575922>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<0000000051b02c53>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000bfdf5313>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<000000007ff4b542>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000a349c462>] do_new_mount fs/namespace.c:2874 [inline]
    [<00000000a349c462>] do_mount+0xa5b/0xe40 fs/namespace.c:3199
    [<00000000da4576c8>] __do_sys_mount fs/namespace.c:3409 [inline]
    [<00000000da4576c8>] __se_sys_mount fs/namespace.c:3386 [inline]
    [<00000000da4576c8>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3386
    [<000000001d1e30c9>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:359
    [<00000000a7224c61>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881065006c0 (size 32):
  comm "syz-executor.1", pid 8379, jiffies 4295047031 (age 9.170s)
  hex dump (first 32 bytes):
    34 32 39 35 30 34 37 30 33 31 00 00 00 00 00 00  4295047031......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000fcf22eda>] kmalloc include/linux/slab.h:555 [inline]
    [<00000000fcf22eda>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<00000000fcf22eda>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000003a575922>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<0000000051b02c53>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000bfdf5313>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<000000007ff4b542>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000a349c462>] do_new_mount fs/namespace.c:2874 [inline]
    [<00000000a349c462>] do_mount+0xa5b/0xe40 fs/namespace.c:3199
    [<00000000da4576c8>] __do_sys_mount fs/namespace.c:3409 [inline]
    [<00000000da4576c8>] __se_sys_mount fs/namespace.c:3386 [inline]
    [<00000000da4576c8>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3386
    [<000000001d1e30c9>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:359
    [<00000000a7224c61>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888106500e80 (size 32):
  comm "syz-executor.6", pid 8381, jiffies 4295047038 (age 9.100s)
  hex dump (first 32 bytes):
    34 32 39 35 30 34 37 30 33 38 00 00 00 00 00 00  4295047038......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000fcf22eda>] kmalloc include/linux/slab.h:555 [inline]
    [<00000000fcf22eda>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<00000000fcf22eda>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000003a575922>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<0000000051b02c53>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000bfdf5313>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<000000007ff4b542>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000a349c462>] do_new_mount fs/namespace.c:2874 [inline]
    [<00000000a349c462>] do_mount+0xa5b/0xe40 fs/namespace.c:3199
    [<00000000da4576c8>] __do_sys_mount fs/namespace.c:3409 [inline]
    [<00000000da4576c8>] __se_sys_mount fs/namespace.c:3386 [inline]
    [<00000000da4576c8>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3386
    [<000000001d1e30c9>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:359
    [<00000000a7224c61>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881065003c0 (size 32):
  comm "syz-executor.7", pid 8377, jiffies 4295047040 (age 9.080s)
  hex dump (first 32 bytes):
    34 32 39 35 30 34 37 30 34 30 00 00 00 00 00 00  4295047040......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000fcf22eda>] kmalloc include/linux/slab.h:555 [inline]
    [<00000000fcf22eda>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<00000000fcf22eda>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000003a575922>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<0000000051b02c53>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000bfdf5313>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<000000007ff4b542>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000a349c462>] do_new_mount fs/namespace.c:2874 [inline]
    [<00000000a349c462>] do_mount+0xa5b/0xe40 fs/namespace.c:3199
    [<00000000da4576c8>] __do_sys_mount fs/namespace.c:3409 [inline]
    [<00000000da4576c8>] __se_sys_mount fs/namespace.c:3386 [inline]
    [<00000000da4576c8>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3386
    [<000000001d1e30c9>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:359
    [<00000000a7224c61>] entry_SYSCALL_64_after_hwframe+0x44/0xa9