Kernel bug: memory leak in hfs_init_fs_context
Subsystem: hfs
Status: fixed

Crash report:
BUG: memory leak
unreferenced object 0xffff888109400600 (size 512):
  comm "syz.0.17", pid 6095, jiffies 4294942887
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 4c2359fc):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4958 [inline]
    slab_alloc_node mm/slub.c:5263 [inline]
    __kmalloc_cache_noprof+0x3b2/0x570 mm/slub.c:5771
    kmalloc_noprof include/linux/slab.h:957 [inline]
    kzalloc_noprof include/linux/slab.h:1094 [inline]
    hfs_init_fs_context+0x24/0xd0 fs/hfs/super.c:411
    alloc_fs_context+0x2a0/0x6e0 fs/fs_context.c:315
    do_new_mount fs/namespace.c:3692 [inline]
    path_mount+0x93f/0x1320 fs/namespace.c:4022
    do_mount fs/namespace.c:4035 [inline]
    __do_sys_mount fs/namespace.c:4224 [inline]
    __se_sys_mount fs/namespace.c:4201 [inline]
    __x64_sys_mount+0x1a2/0x1e0 fs/namespace.c:4201
    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
    do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: memory leak
unreferenced object 0xffff888111f8d800 (size 512):
  comm "syz.0.18", pid 6098, jiffies 4294942888
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 4c2359fc):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4958 [inline]
    slab_alloc_node mm/slub.c:5263 [inline]
    __kmalloc_cache_noprof+0x3b2/0x570 mm/slub.c:5771
    kmalloc_noprof include/linux/slab.h:957 [inline]
    kzalloc_noprof include/linux/slab.h:1094 [inline]
    hfs_init_fs_context+0x24/0xd0 fs/hfs/super.c:411
    alloc_fs_context+0x2a0/0x6e0 fs/fs_context.c:315
    do_new_mount fs/namespace.c:3692 [inline]
    path_mount+0x93f/0x1320 fs/namespace.c:4022
    do_mount fs/namespace.c:4035 [inline]
    __do_sys_mount fs/namespace.c:4224 [inline]
    __se_sys_mount fs/namespace.c:4201 [inline]
    __x64_sys_mount+0x1a2/0x1e0 fs/namespace.c:4201
    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
    do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: memory leak
unreferenced object 0xffff888111f13400 (size 512):
  comm "syz.0.19", pid 6100, jiffies 4294942890
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 4c2359fc):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4958 [inline]
    slab_alloc_node mm/slub.c:5263 [inline]
    __kmalloc_cache_noprof+0x3b2/0x570 mm/slub.c:5771
    kmalloc_noprof include/linux/slab.h:957 [inline]
    kzalloc_noprof include/linux/slab.h:1094 [inline]
    hfs_init_fs_context+0x24/0xd0 fs/hfs/super.c:411
    alloc_fs_context+0x2a0/0x6e0 fs/fs_context.c:315
    do_new_mount fs/namespace.c:3692 [inline]
    path_mount+0x93f/0x1320 fs/namespace.c:4022
    do_mount fs/namespace.c:4035 [inline]
    __do_sys_mount fs/namespace.c:4224 [inline]
    __se_sys_mount fs/namespace.c:4201 [inline]
    __x64_sys_mount+0x1a2/0x1e0 fs/namespace.c:4201
    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
    do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: memory leak
unreferenced object 0xffff88810b0c5400 (size 512):
  comm "syz.0.20", pid 6131, jiffies 4294943471
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 4c2359fc):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4958 [inline]
    slab_alloc_node mm/slub.c:5263 [inline]
    __kmalloc_cache_noprof+0x3b2/0x570 mm/slub.c:5771
    kmalloc_noprof include/linux/slab.h:957 [inline]
    kzalloc_noprof include/linux/slab.h:1094 [inline]
    hfs_init_fs_context+0x24/0xd0 fs/hfs/super.c:411
    alloc_fs_context+0x2a0/0x6e0 fs/fs_context.c:315
    do_new_mount fs/namespace.c:3692 [inline]
    path_mount+0x93f/0x1320 fs/namespace.c:4022
    do_mount fs/namespace.c:4035 [inline]
    __do_sys_mount fs/namespace.c:4224 [inline]
    __se_sys_mount fs/namespace.c:4201 [inline]
    __x64_sys_mount+0x1a2/0x1e0 fs/namespace.c:4201
    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
    do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: memory leak
unreferenced object 0xffff88811281f600 (size 512):
  comm "syz.0.21", pid 6132, jiffies 4294943472
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 4c2359fc):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4958 [inline]
    slab_alloc_node mm/slub.c:5263 [inline]
    __kmalloc_cache_noprof+0x3b2/0x570 mm/slub.c:5771
    kmalloc_noprof include/linux/slab.h:957 [inline]
    kzalloc_noprof include/linux/slab.h:1094 [inline]
    hfs_init_fs_context+0x24/0xd0 fs/hfs/super.c:411
    alloc_fs_context+0x2a0/0x6e0 fs/fs_context.c:315
    do_new_mount fs/namespace.c:3692 [inline]
    path_mount+0x93f/0x1320 fs/namespace.c:4022
    do_mount fs/namespace.c:4035 [inline]
    __do_sys_mount fs/namespace.c:4224 [inline]
    __se_sys_mount fs/namespace.c:4201 [inline]
    __x64_sys_mount+0x1a2/0x1e0 fs/namespace.c:4201
    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
    do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF