BUG: memory leak
unreferenced object 0xffff88811a06c0a0 (size 32):
  comm "syz-executor328", pid 6469, jiffies 4294951854 (age 25.830s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 35 34 00 00 00 00 00 00  4294951854......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888118521600 (size 32):
  comm "syz-executor328", pid 6470, jiffies 4294951859 (age 25.780s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 35 39 00 00 00 00 00 00  4294951859......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115d74260 (size 32):
  comm "syz-executor328", pid 6478, jiffies 4294951869 (age 25.680s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 36 39 00 1b 81 88 ff ff  4294951869......
    22 01 00 00 00 00 ad de 78 42 d7 15 81 88 ff ff  ".......xB......
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881185213a0 (size 32):
  comm "syz-executor328", pid 6474, jiffies 4294951869 (age 25.680s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 36 39 00 00 00 00 00 00  4294951869......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115d74aa0 (size 32):
  comm "syz-executor328", pid 6477, jiffies 4294951874 (age 25.630s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 37 34 00 72 74 75 61 6c  4294951874.rtual
    2f 62 64 69 2f 39 70 2d 31 31 00 00 00 00 00 00  /bdi/9p-11......
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88811a06c0a0 (size 32):
  comm "syz-executor328", pid 6469, jiffies 4294951854 (age 31.260s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 35 34 00 00 00 00 00 00  4294951854......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888118521600 (size 32):
  comm "syz-executor328", pid 6470, jiffies 4294951859 (age 31.210s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 35 39 00 00 00 00 00 00  4294951859......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115d74260 (size 32):
  comm "syz-executor328", pid 6478, jiffies 4294951869 (age 31.110s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 36 39 00 1b 81 88 ff ff  4294951869......
    22 01 00 00 00 00 ad de 78 42 d7 15 81 88 ff ff  ".......xB......
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881185213a0 (size 32):
  comm "syz-executor328", pid 6474, jiffies 4294951869 (age 31.110s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 36 39 00 00 00 00 00 00  4294951869......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115d74aa0 (size 32):
  comm "syz-executor328", pid 6477, jiffies 4294951874 (age 31.060s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 37 34 00 72 74 75 61 6c  4294951874.rtual
    2f 62 64 69 2f 39 70 2d 31 31 00 00 00 00 00 00  /bdi/9p-11......
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88811a06c0a0 (size 32):
  comm "syz-executor328", pid 6469, jiffies 4294951854 (age 34.040s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 35 34 00 00 00 00 00 00  4294951854......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888118521600 (size 32):
  comm "syz-executor328", pid 6470, jiffies 4294951859 (age 33.990s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 35 39 00 00 00 00 00 00  4294951859......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115d74260 (size 32):
  comm "syz-executor328", pid 6478, jiffies 4294951869 (age 33.890s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 36 39 00 1b 81 88 ff ff  4294951869......
    22 01 00 00 00 00 ad de 78 42 d7 15 81 88 ff ff  ".......xB......
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881185213a0 (size 32):
  comm "syz-executor328", pid 6474, jiffies 4294951869 (age 33.890s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 36 39 00 00 00 00 00 00  4294951869......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115d74aa0 (size 32):
  comm "syz-executor328", pid 6477, jiffies 4294951874 (age 33.840s)
  hex dump (first 32 bytes):
    34 32 39 34 39 35 31 38 37 34 00 72 74 75 61 6c  4294951874.rtual
    2f 62 64 69 2f 39 70 2d 31 31 00 00 00 00 00 00  /bdi/9p-11......
  backtrace:
    [<0000000099fc25af>] kmalloc include/linux/slab.h:555 [inline]
    [<0000000099fc25af>] v9fs_random_cachetag fs/9p/cache.c:36 [inline]
    [<0000000099fc25af>] v9fs_cache_session_get_cookie+0x98/0x100 fs/9p/cache.c:52
    [<000000004f1dfda3>] v9fs_session_init+0x5a1/0x840 fs/9p/v9fs.c:470
    [<00000000c7a84a5e>] v9fs_mount+0x56/0x390 fs/9p/vfs_super.c:124
    [<00000000ea5031ce>] legacy_get_tree+0x26/0x70 fs/fs_context.c:592
    [<00000000329784d7>] vfs_get_tree+0x28/0xe0 fs/super.c:1547
    [<00000000bf7b5910>] do_new_mount fs/namespace.c:2875 [inline]
    [<00000000bf7b5910>] do_mount+0xa63/0xe40 fs/namespace.c:3200
    [<00000000bb5f7786>] __do_sys_mount fs/namespace.c:3410 [inline]
    [<00000000bb5f7786>] __se_sys_mount fs/namespace.c:3387 [inline]
    [<00000000bb5f7786>] __x64_sys_mount+0xb0/0x120 fs/namespace.c:3387
    [<000000000b60d53d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000f4936906>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

executing program
executing program
executing program