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37d8faf1b45a88ca195175f63a2bad374fca3e6e
ladybird/Kernel/FileSystem
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Andreas Kling 37d8faf1b4 ProcFS: Fix /proc/PID/* hardening bypass 
This enabled trivial ASLR bypass for non-dumpable programs by simply
opening /proc/PID/vm before exec'ing.

We now hold the target process's ptrace lock across the refresh/write
operations, and deny access if the process is non-dumpable. The lock
is necessary to prevent a TOCTOU race on Process::is_dumpable() while
the target is exec'ing.

Fixes #5270.
2021-02-19 09:46:36 +01:00
..
AnonymousFile.cpp
Kernel: Factor address space management out of the Process class
2021-02-08 18:27:28 +01:00
AnonymousFile.h
Kernel: Hoist VM range allocation up to sys$mmap() itself
2021-01-25 18:57:06 +01:00
BlockBasedFileSystem.cpp
Kernel: Fix build with BBFS_DEBUG
2021-02-12 13:51:34 +01:00
BlockBasedFileSystem.h
Kernel: Make BlockBasedFS::BlockIndex a distinct integer type
2021-02-12 11:59:27 +01:00
Custody.cpp
Kernel: Support read-only filesystem mounts
2020-05-29 07:53:30 +02:00
Custody.h
Kernel: Support read-only filesystem mounts
2020-05-29 07:53:30 +02:00
DevFS.cpp
DevFS: Use strongly typed InodeIndex
2021-02-12 16:24:40 +01:00
DevFS.h
DevFS: Use strongly typed InodeIndex
2021-02-12 16:24:40 +01:00
DevPtsFS.cpp
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
DevPtsFS.h
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
ext2_fs.h
Meta: Split debug defines into multiple headers.
2021-01-26 21:20:00 +01:00
ext2_types.h
Everywhere: Re-format with clang-format-11
2020-12-31 21:51:00 +01:00
Ext2FileSystem.cpp
Kernel: Use divide_rounded_up inside write_block_list_for_inode
2021-02-13 19:56:49 +01:00
Ext2FileSystem.h
Ext2FS: Make Ext2FS::GroupIndex a distinct integer type
2021-02-12 13:33:58 +01:00
FIFO.cpp
Kernel: Add WaitQueue::wait_forever and it use it for all infinite waits.
2021-02-15 08:28:57 +01:00
FIFO.h
Kernel: Improve ProcFS behavior in low memory conditions
2021-01-03 22:12:19 +01:00
File.cpp
Kernel: Hoist VM range allocation up to sys$mmap() itself
2021-01-25 18:57:06 +01:00
File.h
Kernel: Hoist VM range allocation up to sys$mmap() itself
2021-01-25 18:57:06 +01:00
FileBackedFileSystem.cpp
Kernel: Split BlockBasedFileSystem off FileBackedFileSystem
2020-07-05 12:26:27 +02:00
FileBackedFileSystem.h
Kernel: Split BlockBasedFileSystem off FileBackedFileSystem
2020-07-05 12:26:27 +02:00
FileDescription.cpp
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
FileDescription.h
Kernel: Add forgotten 'const' flag
2021-02-13 00:40:31 +01:00
FileSystem.cpp
Kernel: Switch singletons to use new Singleton class
2020-08-25 09:48:48 +02:00
FileSystem.h
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
Inode.cpp
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
Inode.h
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
InodeFile.cpp
Kernel: Factor address space management out of the Process class
2021-02-08 18:27:28 +01:00
InodeFile.h
Kernel: Add FIBMAP ioctl to Ext2FileSystem
2021-01-30 22:54:51 +01:00
InodeIdentifier.h
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
InodeMetadata.h
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
InodeWatcher.cpp
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
InodeWatcher.h
Kernel: Move InodeWatcher::Event into Kernel/API/InodeWatcherEvent
2020-12-14 23:05:53 +01:00
Plan9FileSystem.cpp
Kernel+LibC: Turn errno codes into a strongly typed enum
2021-01-20 23:20:02 +01:00
Plan9FileSystem.h
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
ProcFS.cpp
ProcFS: Fix /proc/PID/* hardening bypass
2021-02-19 09:46:36 +01:00
ProcFS.h
ProcFS: Fix /proc/PID/* hardening bypass
2021-02-19 09:46:36 +01:00
TmpFS.cpp
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
TmpFS.h
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
VirtualFileSystem.cpp
Kernel: Add distinct InodeIndex type
2021-02-12 10:26:29 +01:00
VirtualFileSystem.h
Kernel: Implement unveil() as a prefix-tree
2020-12-26 11:54:54 +01:00