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musl - an implementation of the standard library for Linux-based systems
233bb6972d
after a non-normal-type process-shared mutex is unlocked, it's immediately available to another thread to lock, unlock, and destroy, but the first unlocking thread may still have a pointer to it in its robust_list pending slot. this means, on async process termination, the kernel may attempt to access and modify the memory that used to contain the mutex -- memory that may have been reused for some other purpose after the mutex was destroyed. setting up for this kind of race to occur is difficult to begin with, requiring dynamic use of shared memory maps, and actually hitting the race is very difficult even with a suitable setup. so this is mostly a theoretical fix, but in any case the cost is very low. |
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| .gitignore | ||
| .mailmap | ||
| configure | ||
| COPYRIGHT | ||
| dynamic.list | ||
| INSTALL | ||
| Makefile | ||
| README | ||
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musl libc
musl, pronounced like the word "mussel", is an MIT-licensed
implementation of the standard C library targetting the Linux syscall
API, suitable for use in a wide range of deployment environments. musl
offers efficient static and dynamic linking support, lightweight code
and low runtime overhead, strong fail-safe guarantees under correct
usage, and correctness in the sense of standards conformance and
safety. musl is built on the principle that these goals are best
achieved through simple code that is easy to understand and maintain.
The 1.1 release series for musl features coverage for all interfaces
defined in ISO C99 and POSIX 2008 base, along with a number of
non-standardized interfaces for compatibility with Linux, BSD, and
glibc functionality.
For basic installation instructions, see the included INSTALL file.
Information on full musl-targeted compiler toolchains, system
bootstrapping, and Linux distributions built on musl can be found on
the project website:
http://www.musl-libc.org/