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| author | janekptacijarabaci <janekptacijarabaci@seznam.cz> | 2018-07-06 15:53:52 +0200 |
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| committer | janekptacijarabaci <janekptacijarabaci@seznam.cz> | 2018-07-06 15:53:52 +0200 |
| commit | 941e54654eabed0a3568f7fefe424a45aa02eddb (patch) | |
| tree | 49aa02b174c428962d99142d8061267bfcd79e69 /js/src/jit/ProcessExecutableMemory.h | |
| parent | ad9ee72dcd7981bc47b3844a224d69fadfdfd8ef (diff) | |
| parent | 0daa12376295d5d796256a116eb2a348a3a9273f (diff) | |
| download | UXP-941e54654eabed0a3568f7fefe424a45aa02eddb.tar UXP-941e54654eabed0a3568f7fefe424a45aa02eddb.tar.gz UXP-941e54654eabed0a3568f7fefe424a45aa02eddb.tar.lz UXP-941e54654eabed0a3568f7fefe424a45aa02eddb.tar.xz UXP-941e54654eabed0a3568f7fefe424a45aa02eddb.zip | |
Merge branch 'master' of https://github.com/MoonchildProductions/UXP into _testBranch_test_1
Diffstat (limited to 'js/src/jit/ProcessExecutableMemory.h')
| -rw-r--r-- | js/src/jit/ProcessExecutableMemory.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/js/src/jit/ProcessExecutableMemory.h b/js/src/jit/ProcessExecutableMemory.h index 078ce7cb7..a0e2fab98 100644 --- a/js/src/jit/ProcessExecutableMemory.h +++ b/js/src/jit/ProcessExecutableMemory.h @@ -17,6 +17,14 @@ namespace jit { // alignment though. static const size_t ExecutableCodePageSize = 64 * 1024; +// Limit on the number of bytes of executable memory to prevent JIT spraying +// attacks. +#if JS_BITS_PER_WORD == 32 +static const size_t MaxCodeBytesPerProcess = 128 * 1024 * 1024; +#else +static const size_t MaxCodeBytesPerProcess = 1 * 1024 * 1024 * 1024; +#endif + enum class ProtectionSetting { Protected, // Not readable, writable, or executable. Writable, |