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Kernel: Make sure OpenFileDescription is kept alive while read() blocks

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It's not safe to store OpenFileDescription in a raw pointer when
blocking, since another thread may decide to close the corresponding
file descriptor.
This commit is contained in:
Andreas Kling 2021-11-21 20:03:11 +01:00
parent 401c9415b4
commit f99af1bef0
1 changed files with 1 additions and 1 deletions
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2
Kernel/Syscalls/read.cpp
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@ -12,7 +12,7 @@ namespace Kernel {
using BlockFlags = Thread::FileBlocker::BlockFlags;
static ErrorOr<OpenFileDescription*> open_readable_file_description(Process::OpenFileDescriptions const& fds, int fd)
static ErrorOr<NonnullRefPtr<OpenFileDescription>> open_readable_file_description(Process::OpenFileDescriptions const& fds, int fd)
{
auto description = TRY(fds.open_file_description(fd));
if (!description->is_readable())