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Kernel: Fix some failing assertions

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When mounting Ext2FS, we don't care if the file has a custody (it doesn't if
it's a device, which is a common case). When doing a bind-mount, we do need a
custody; if none is provided, let's return an error instead of crashing.
This commit is contained in:
Sergey Bugaev 2020-05-28 17:47:33 +03:00 • committed by Andreas Kling
commit 6627c3ea3a
Notes: sideshowbarker 2024-07-19 06:01:04 +09:00
1 changed files with 4 additions and 2 deletions
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6
Kernel/Process.cpp
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@ -4104,14 +4104,16 @@ int Process::sys$mount(const Syscall::SC_mount_params* user_params)
// We're doing a bind mount.
if (description.is_null())
return -EBADF;
ASSERT(description->custody());
if (!description->custody()) {
// We only support bind-mounting inodes, not arbitrary files.
return -ENODEV;
}
return VFS::the().bind_mount(*description->custody(), target_custody, params.flags);
}
if (fs_type == "ext2" || fs_type == "Ext2FS") {
if (description.is_null())
return -EBADF;
ASSERT(description->custody());
if (!description->file().is_seekable()) {
dbg() << "mount: this is not a seekable file";
return -ENODEV;