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37d8faf1b45a88ca195175f63a2bad374fca3e6e
ladybird/Kernel
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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
..
ACPI
Everywhere: Replace dbgln<flag>(...) with dbgln_if(flag, ...)
2021-02-08 18:08:55 +01:00
API
Kernel: Handle 'Menu' key on PS/2 keyboard
2021-02-15 19:37:14 +01:00
Arch
Kernel: Remove kprintf()
2021-02-17 16:33:43 +01:00
Devices
Kernel: Convert dbgprintf()/klog() => dbgln()/dmesgln() in UHCI code
2021-02-17 16:30:55 +01:00
FileSystem
ProcFS: Fix /proc/PID/* hardening bypass
2021-02-19 09:46:36 +01:00
Heap
Kernel: Mark a handful of things in kmalloc.cpp as READONLY_AFTER_INIT
2021-02-14 18:12:00 +01:00
Interrupts
Kernel: Avoid some un-necessary copies coming from range based for loops
2021-02-15 15:25:23 +01:00
Modules
…
Net
Kernel: Don't go through ARP for IP broadcast messages
2021-02-17 14:41:36 +01:00
PCI
Kernel: Convert dbgprintf()/klog() => dbgln()/dmesgln() in UHCI code
2021-02-17 16:30:55 +01:00
Storage
Kernel: Assert if rounding-up-to-page-size would wrap around to 0
2021-02-14 10:01:50 +01:00
Syscalls
Kernel: Factor out mmap & friends range expansion to a helper function
2021-02-18 18:04:58 +01:00
Tasks
Kernel: Ignore unobserved BlockResult from Thread::Sleep
2021-02-15 08:28:57 +01:00
Time
Everywhere: Replace dbgln<flag>(...) with dbgln_if(flag, ...)
2021-02-08 18:08:55 +01:00
TTY
Kernel: Convert snprintf() => String::formatted()/number()
2021-02-17 16:37:11 +01:00
VM
Kernel: Avoid some un-necessary copies coming from range based for loops
2021-02-15 15:25:23 +01:00
.gitignore
Meta: Expect sync-local.sh script at repository root
2021-01-30 09:18:46 +01:00
AddressSanitizer.cpp
Kernel: Initial integration of Kernel Address Sanitizer (KASAN)
2021-02-15 11:41:53 +01:00
AddressSanitizer.h
Kernel: Initial integration of Kernel Address Sanitizer (KASAN)
2021-02-15 11:41:53 +01:00
Assertions.h
…
CMakeLists.txt
Meta: Make it possible to (somewhat) build the system inside Serenity
2021-02-15 17:32:56 +01:00
CMOS.cpp
…
CMOS.h
…
CommandLine.cpp
…
CommandLine.h
…
Console.cpp
…
Console.h
Kernel: Make device generate their own names
2021-01-22 22:17:39 +01:00
CoreDump.cpp
Kernel: Reorganize ptrace implementation a bit
2021-02-08 19:34:41 +01:00
CoreDump.h
…
Debug.h.in
Kernel: Add NE2000 network card driver
2021-02-05 09:35:02 +01:00
DMI.cpp
Kernel: Set file size for smbios_entry_point and DMI blobs in ProcFS
2021-02-01 17:13:23 +01:00
DMI.h
Kernel: Set file size for smbios_entry_point and DMI blobs in ProcFS
2021-02-01 17:13:23 +01:00
DoubleBuffer.cpp
…
DoubleBuffer.h
…
Forward.h
Kernel: Factor address space management out of the Process class
2021-02-08 18:27:28 +01:00
FutexQueue.cpp
Everywhere: Replace dbgln<flag>(...) with dbgln_if(flag, ...)
2021-02-08 18:08:55 +01:00
FutexQueue.h
…
init.cpp
Kernel: Mark a handful of things in init.cpp as READONLY_AFTER_INIT
2021-02-14 18:12:00 +01:00
IO.h
…
KBuffer.h
Kernel: Mark KBuffer and its getters as [[nodiscard]]
2021-02-15 09:34:52 +01:00
KBufferBuilder.cpp
Kernel: Assert if rounding-up-to-page-size would wrap around to 0
2021-02-14 10:01:50 +01:00
KBufferBuilder.h
Kernel: Convert all *Builder::appendf() => appendff()
2021-02-09 19:18:13 +01:00
kprintf.cpp
Kernel: Remove kprintf()
2021-02-17 16:33:43 +01:00
KResult.h
Kernel: Mark KResult getters as [[nodiscard]]
2021-02-15 09:34:52 +01:00
kstdio.h
Kernel: Remove kprintf()
2021-02-17 16:33:43 +01:00
KSyms.cpp
Everywhere: Remove some bitrotted "#if 0" blocks
2021-02-03 11:17:47 +01:00
KSyms.h
…
linker.ld
Kernel: Add mechanism to make some memory read-only after init finishes
2021-02-14 18:11:32 +01:00
Lock.cpp
Kernel: Add WaitQueue::wait_forever and it use it for all infinite waits.
2021-02-15 08:28:57 +01:00
Lock.h
Kernel: Mark Lock getters as [[nodiscard]]
2021-02-15 09:34:52 +01:00
LockMode.h
…
mkmap.sh
…
Module.h
…
Multiboot.h
Kernel: Parse boot modules from Multiboot specification
2021-01-22 22:17:39 +01:00
Panic.cpp
Kernel: Add a PANIC() function
2021-02-14 09:36:58 +01:00
Panic.h
Kernel: Add a PANIC() function
2021-02-14 09:36:58 +01:00
PerformanceEventBuffer.cpp
Kernel: Factor address space management out of the Process class
2021-02-08 18:27:28 +01:00
PerformanceEventBuffer.h
…
PhysicalAddress.h
Kernel: Mark PhysicalAddress/VirtualAddress getters as [[nodiscard]]
2021-02-15 09:34:52 +01:00
Process.cpp
Kernel: Mark a handful of things in Process.cpp READONLY_AFTER_INIT
2021-02-14 18:12:00 +01:00
Process.h
Kernel: Use KResult a bit more in sys$execve()
2021-02-18 09:37:33 +01:00
ProcessGroup.cpp
…
ProcessGroup.h
…
Random.cpp
Kernel: Add WaitQueue::wait_forever and it use it for all infinite waits.
2021-02-15 08:28:57 +01:00
Random.h
Kernel: Don't left-shift 1 (signed) 31 times
2021-02-05 21:28:06 +01:00
RTC.cpp
Kernel: Don't assert if RTC believes we're in the past
2021-02-11 20:58:39 +01:00
RTC.h
…
Scheduler.cpp
Kernel: Mark a handful of things in Scheduler.cpp READONLY_AFTER_INIT
2021-02-14 18:12:00 +01:00
Scheduler.h
Kernel: Remove ancient unused Scheduler::beep() declaration
2021-02-07 20:45:09 +01:00
SpinLock.h
…
StdLib.cpp
Kernel: Do not try to print the string that cannot be read
2021-02-13 00:40:31 +01:00
StdLib.h
Kernel: Mark more StdLib functions as [[nodiscard]]
2021-02-15 09:34:52 +01:00
Syscall.cpp
Kernel: Fix TOCTOU in syscall entry region validation
2021-02-14 11:47:14 +01:00
Thread.cpp
Kernel: Mark a handful of things in Thread.cpp READONLY_AFTER_INIT
2021-02-14 18:12:00 +01:00
Thread.h
Kernel: Mark BlockResult as [[nodiscard]]
2021-02-15 08:28:57 +01:00
ThreadBlockers.cpp
Everywhere: Replace dbgln<flag>(...) with dbgln_if(flag, ...)
2021-02-08 18:08:55 +01:00
ThreadTracer.cpp
Kernel: Reorganize ptrace implementation a bit
2021-02-08 19:34:41 +01:00
ThreadTracer.h
…
TimerQueue.cpp
…
TimerQueue.h
…
UBSanitizer.cpp
KUBSAN: Add nearly all missing -fsanitize handlers (#5254)
2021-02-11 20:58:01 +01:00
UBSanitizer.h
KUBSAN: Add nearly all missing -fsanitize handlers (#5254)
2021-02-11 20:58:01 +01:00
UnixTypes.h
Kernel+LibC: Add the _SC_GETPW_R_SIZE_MAX sysconf enum
2021-02-15 17:32:56 +01:00
UnveilNode.h
…
UserOrKernelBuffer.cpp
…
UserOrKernelBuffer.h
Kernel: Mark UserOrKernelBuffer and it's getters as [[nodicard]]
2021-02-15 09:34:52 +01:00
VirtualAddress.h
Kernel: Mark PhysicalAddress/VirtualAddress getters as [[nodiscard]]
2021-02-15 09:34:52 +01:00
WaitQueue.cpp
Everywhere: Replace dbgln<flag>(...) with dbgln_if(flag, ...)
2021-02-08 18:08:55 +01:00
WaitQueue.h
Kernel: Add WaitQueue::wait_forever and it use it for all infinite waits.
2021-02-15 08:28:57 +01:00