Andreas Kling 862b3ccb4e Kernel: Enforce W^X between sys$mmap() and sys$execve() ... It's now an error to sys$mmap() a file as writable if it's currently mapped executable by anyone else. It's also an error to sys$execve() a file that's currently mapped writable by anyone else. This fixes a race condition vulnerability where one program could make modifications to an executable while another process was in the kernel, in the middle of exec'ing the same executable. Test: Kernel/elf-execve-mmap-race.cpp		2020-01-18 23:40:12 +01:00
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elf-execve-mmap-race.cpp	Kernel: Enforce W^X between sys$mmap() and sys$execve()	2020-01-18 23:40:12 +01:00
elf-symbolication-kernel-read-exploit.cpp	Kernel+LibELF: Don't blindly trust ELF symbol offsets in symbolication	2020-01-16 22:11:31 +01:00
mmap-write-into-running-programs-executable-file.cpp	Kernel: Validate PROT_READ and PROT_WRITE against underlying file	2020-01-07 19:32:32 +01:00
null-deref-close-during-select.cpp	Kernel: Ignore closed fd's when considering select() unblock	2020-01-09 12:36:42 +01:00
null-deref-crash-during-pthread_join.cpp	Kernel: Fix kernel null deref on process crash during join_thread()	2020-01-10 19:23:45 +01:00
uaf-close-while-blocked-in-read.cpp	Kernel: Make Process::file_description() vend a RefPtr<FileDescription>	2020-01-07 15:53:42 +01:00