John Schmidt adea9a1765 std.fmt: fix out-of-bounds array write in float printing ... This commit fixes an out of bounds write that can occur when formatting certain float values. The write messes up the stack and causes incorrect results, segfaults, or nothing at all, depending on the optimization mode used. The `errol` function writes the digits of the float into `buffer` starting from index 1, leaving index 0 untouched, and returns `buffer[1..]` and the exponent. This is because `roundToPrecision` relies on index 0 being unused in case the rounding adds a digit (e.g rounding 999.99 to 1000.00). When this happens, pointer arithmetic is used [here](0e6d2184ca/lib/std/fmt/errol.zig (L61-L65)) to access index 0 and put the ones digit in the right place. However, `errol3u` contains two special cases: `errolInt` and `errolFixed`, which return from the function early. For these two special cases index 0 was never reserved, and the return value contains `buffer` instead of `buffer[1..]`. This causes the pointer arithmetic in `roundToPrecision` to write out of bounds, which in the case of `std.fmt.formatFloatDecimal` messes up the stack and causes undefined behavior. The fix is to move the slicing of `buffer` to `buffer[1..]` from `errol3u` to `errol` so that both the default and the special cases operate on the sliced buffer.		2022-01-29 12:25:25 +01:00
..
atomic	allocgate: renamed getAllocator function to allocator	2021-11-30 23:32:47 +00:00
build	allow expected_exit_code to be null	2022-01-24 17:29:19 +02:00
c	std: Add some missing termios types to c/linux.zig and os.zig	2022-01-23 17:12:07 +01:00
compress	compress: add a deflate compressor	2022-01-23 19:30:06 +01:00
crypto	std: break up some long lines	2022-01-28 16:23:47 -07:00
dwarf
event	allocgate: renamed getAllocator function to allocator	2021-11-30 23:32:47 +00:00
fmt	std.fmt: fix out-of-bounds array write in float printing	2022-01-29 12:25:25 +01:00
fs	std/fs: Support XDG_DATA_HOME	2022-01-24 17:33:38 +02:00
hash	allocgate: renamed getAllocator function to allocator	2021-11-30 23:32:47 +00:00
heap	stage1: deal with BPF not supporting @returnAddress()	2021-12-19 23:22:05 -08:00
io	readUntilDelimiter*: read only if buffer not full	2022-01-24 17:44:26 +02:00
json	allocgate: renamed getAllocator function to allocator	2021-11-30 23:32:47 +00:00
math	std: add f80 bits	2022-01-28 11:45:04 -07:00
mem	std.mem.Allocator: upgrade to new function pointer semantics	2022-01-26 20:02:01 -07:00
meta	std lib API deprecations for the upcoming 0.9.0 release	2021-11-30 00:13:07 -07:00
net	Check for isDarwin() instead of linked libc	2022-01-14 13:44:38 +01:00
os	fchown: use the 32-bit uid/gid variant of the syscall on 32-bit linux targets	2022-01-27 20:27:16 +02:00
rand
special	stage2: avoid inferred struct in os_version_check.zig	2022-01-26 00:48:05 -05:00
target
testing	allocgate: change resize to return optional instead of error	2021-11-30 23:45:01 +00:00
Thread	Fix a bug in std.Thread.Condition and add a basic Condition test. (#10538)	2022-01-11 13:04:24 -05:00
time	std.time.epoch: fix issue in documentation	2021-12-16 19:08:58 -08:00
tz	Support legacy TZ format, expose header struct to a potential writer	2022-01-01 12:47:08 +00:00
unicode
valgrind
x	Check for isDarwin() instead of linked libc	2022-01-14 13:44:38 +01:00
zig	fmt: handle doc comments on struct members	2022-01-29 12:19:31 +01:00
array_hash_map.zig	Revert "MultiArrayList: Fix error when struct is 0 sized"	2022-01-24 21:29:04 -07:00
array_list.zig	Preserve alignment when cloning	2022-01-27 19:35:08 +02:00
ascii.zig	allocgate: std Allocator interface refactor	2021-11-30 23:32:47 +00:00
atomic.zig
base64.zig	std lib API deprecations for the upcoming 0.9.0 release	2021-11-30 00:13:07 -07:00
bit_set.zig	9944: make allocator the first argument (excl. self)	2021-12-03 16:42:59 -08:00
bounded_array.zig	Slice function of BoundedArray now returns slice based on self pointer	2022-01-16 01:37:37 -05:00
buf_map.zig	allocgate: std Allocator interface refactor	2021-11-30 23:32:47 +00:00
buf_set.zig	allocgate: std Allocator interface refactor	2021-11-30 23:32:47 +00:00
build.zig	Normalize some build function names	2022-01-24 20:15:32 +02:00
builtin.zig	stage2: type system treats fn ptr and body separately	2022-01-24 21:47:53 -07:00
c.zig	std.c: add shm_open and shm_unlink	2022-01-17 16:56:50 +02:00
child_process.zig	stage1, stage2: rename c_void to anyopaque (#10316)	2021-12-19 00:24:45 -05:00
coff.zig	allocgate: std Allocator interface refactor	2021-11-30 23:32:47 +00:00
compress.zig	compress: add a deflate compressor	2022-01-23 19:30:06 +01:00
comptime_string_map.zig
crypto.zig	std.crypto.random: Randoms are no longer passed by reference	2022-01-25 13:00:39 -05:00
cstr.zig	allocgate: std Allocator interface refactor	2021-11-30 23:32:47 +00:00
debug.zig	add std.debug.todo	2022-01-27 19:42:40 +02:00
dwarf.zig	allocgate: std Allocator interface refactor	2021-11-30 23:32:47 +00:00
dynamic_library.zig	stage1, stage2: rename c_void to anyopaque (#10316)	2021-12-19 00:24:45 -05:00
elf.zig	Rename mem.bswapAllFields to byteSwapAllFields	2022-01-28 21:03:21 -05:00
enums.zig
event.zig
fifo.zig	allocgate: std Allocator interface refactor	2021-11-30 23:32:47 +00:00
fmt.zig	std.fmt: fix out-of-bounds array write in float printing	2022-01-29 12:25:25 +01:00
fs.zig	std.fs.rename: fix Windows implementation	2022-01-02 16:58:05 -08:00
hash.zig	lint: duplicate import (#10519)	2022-01-07 00:06:06 -05:00
hash_map.zig	HashMap: add removeByPtr	2022-01-24 20:29:05 +02:00
heap.zig	stage1, stage2: rename c_void to anyopaque (#10316)	2021-12-19 00:24:45 -05:00
io.zig	std lib API deprecations for the upcoming 0.9.0 release	2021-11-30 00:13:07 -07:00
json.zig	std: add json.stringifyAlloc	2022-01-17 12:32:02 +01:00
leb128.zig
linked_list.zig
log.zig	std lib API deprecations for the upcoming 0.9.0 release	2021-11-30 00:13:07 -07:00
macho.zig	macho: put LC_* consts in a typed enum(u32) LC	2021-12-15 08:59:20 +01:00
math.zig	std: add f80 bits	2022-01-28 11:45:04 -07:00
mem.zig	Rename mem.bswapAllFields to byteSwapAllFields	2022-01-28 21:03:21 -05:00
meta.zig	std: add meta.DeclEnum	2022-01-20 10:54:45 +02:00
multi_array_list.zig	Revert "MultiArrayList: Fix error when struct is 0 sized"	2022-01-24 21:29:04 -07:00
net.zig	Merge pull request #10576 from schmee/macos-resolve-ip	2022-01-15 00:47:12 +01:00
once.zig
os.zig	std: Add some missing termios types to c/linux.zig and os.zig	2022-01-23 17:12:07 +01:00
packed_int_array.zig
pdb.zig	Only check the file's length once in pdb.Msf.init	2021-12-21 17:29:23 -08:00
priority_dequeue.zig	std.priority_dequeue: allow comparator to take a context parameter	2021-12-15 17:46:10 -08:00
priority_queue.zig	std.priority_queue: allow comparator to take a context parameter	2021-12-15 17:46:04 -08:00
process.zig	remove unnecessary self argument	2022-01-20 10:55:10 +02:00
Progress.zig	Fix test label off-by-one error (#10277).	2021-12-06 12:18:41 -08:00
rand.zig	stage1, stage2: rename c_void to anyopaque (#10316)	2021-12-19 00:24:45 -05:00
SemanticVersion.zig
sort.zig
start.zig	fix startup procedure for async WinMain	2022-01-27 19:49:12 +02:00
start_windows_tls.zig	stage1, stage2: rename c_void to anyopaque (#10316)	2021-12-19 00:24:45 -05:00
std.zig	tz parsing reader interface, test thicc files, and exclude tzif	2021-12-31 17:17:49 +00:00
target.zig	glibc: update default cross-compile version to 2.19	2021-12-16 03:01:13 -07:00
testing.zig	stage2: implement @ctz and @clz including SIMD	2022-01-12 23:53:26 -07:00
Thread.zig	Fix a bug in std.Thread.Condition and add a basic Condition test. (#10538)	2022-01-11 13:04:24 -05:00
time.zig	lint: duplicate import (#10519)	2022-01-07 00:06:06 -05:00
tz.zig	Rename mem.bswapAllFields to byteSwapAllFields	2022-01-28 21:03:21 -05:00
unicode.zig	allocgate: std Allocator interface refactor	2021-11-30 23:32:47 +00:00
valgrind.zig	lint: duplicate import (#10519)	2022-01-07 00:06:06 -05:00
wasm.zig	wasm: Implement memset, and sret arguments.	2022-01-04 17:59:05 +01:00
x.zig
zig.zig	allocgate: std Allocator interface refactor	2021-11-30 23:32:47 +00:00