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jemalloc/test/unit
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Slobodan Predolac c2d57040f0 Fix out-of-bounds write in malloc_vsnprintf when size is 0 
When called with size==0, the else branch wrote to str[size-1] which
is str[(size_t)-1], a massive out-of-bounds write. Standard vsnprintf
allows size==0 to mean "compute length only, write nothing".

Add unit test for the size==0 case.
2026-04-01 23:15:19 -04:00
..
a0.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
arena_decay.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
arena_decay.sh Allow opt.tcache_max to accept small size classes. 2020-10-24 20:43:44 -07:00
arena_reset.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
arena_reset_prof.c Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
arena_reset_prof.sh Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
atomic.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
background_thread.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
background_thread_enable.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
background_thread_init.c Fix background thread initialization race 2026-03-10 18:14:33 -07:00
base.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
batch_alloc.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
batch_alloc.sh Add batch allocation API 2020-07-31 09:16:50 -07:00
batch_alloc_prof.c Add batch allocation API 2020-07-31 09:16:50 -07:00
batch_alloc_prof.sh Add batch allocation API 2020-07-31 09:16:50 -07:00
bin.c Add unit test coverage for bin interfaces 2026-03-10 18:14:33 -07:00
binshard.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
binshard.sh Fix binshard.sh by specifying bin_shards for all sizes. 2025-05-28 19:21:49 -07:00
bit_util.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
bitmap.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
buf_writer.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
cache_bin.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
ckh.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
conf.c Add unit tests for conf parsing and its helpers 2026-03-10 18:14:33 -07:00
conf_init_0.c Add unit tests for conf parsing and its helpers 2026-03-10 18:14:33 -07:00
conf_init_1.c Add unit tests for conf parsing and its helpers 2026-03-10 18:14:33 -07:00
conf_init_confirm.c Add unit tests for conf parsing and its helpers 2026-03-10 18:14:33 -07:00
conf_parse.c Add unit tests for conf parsing and its helpers 2026-03-10 18:14:33 -07:00
counter.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
decay.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
div.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
double_free.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
double_free.h Eagerly detect double free and sized dealloc bugs for large sizes. 2020-10-15 10:03:16 -07:00
edata_cache.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
emitter.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
extent_quantize.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
fb.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
fork.c Revert PR #2608: Manually revert commits 70c94d..f9c0b5 2026-03-10 18:14:33 -07:00
fxp.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
hash.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
hook.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
hpa.c [SEC] Make SEC owned by hpa_shard, simplify the code, add stats, lock per bin 2026-03-10 18:14:33 -07:00
hpa.sh When extracting from central, hugify_eager is different than start_as_huge 2026-03-10 18:14:33 -07:00
hpa_background_thread.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
hpa_background_thread.sh When extracting from central, hugify_eager is different than start_as_huge 2026-03-10 18:14:33 -07:00
hpa_sec_integration.c [SEC] Make SEC owned by hpa_shard, simplify the code, add stats, lock per bin 2026-03-10 18:14:33 -07:00
hpa_sec_integration.sh [SEC] Make SEC owned by hpa_shard, simplify the code, add stats, lock per bin 2026-03-10 18:14:33 -07:00
hpa_thp_always.c [SEC] Make SEC owned by hpa_shard, simplify the code, add stats, lock per bin 2026-03-10 18:14:33 -07:00
hpa_thp_always.sh When extracting from central, hugify_eager is different than start_as_huge 2026-03-10 18:14:33 -07:00
hpa_vectorized_madvise.c [SEC] Make SEC owned by hpa_shard, simplify the code, add stats, lock per bin 2026-03-10 18:14:33 -07:00
hpa_vectorized_madvise.sh When extracting from central, hugify_eager is different than start_as_huge 2026-03-10 18:14:33 -07:00
hpa_vectorized_madvise_large_batch.c [SEC] Make SEC owned by hpa_shard, simplify the code, add stats, lock per bin 2026-03-10 18:14:33 -07:00
hpa_vectorized_madvise_large_batch.sh [process_madvise] Use process_madvise across multiple huge_pages 2025-04-25 19:19:03 -07:00
hpdata.c [HPA] Add ability to start page as huge and more flexibility for purging 2026-03-10 18:14:33 -07:00
huge.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
inspect.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
inspect.sh Add the profiling settings for tests explicit. 2021-12-22 20:10:28 -08:00
json_stats.c Fix duplicate "nactive_huge" JSON key in HPA shard stats output 2026-04-01 23:15:19 -04:00
junk.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
junk.sh Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
junk_alloc.c Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
junk_alloc.sh Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
junk_free.c Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
junk_free.sh Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
large_ralloc.c Fix missing negation in large_ralloc_no_move usize_min fallback 2026-04-01 23:15:19 -04:00
log.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
mallctl.c Fix off-by-one in stats_arenas_i_bins_j and stats_arenas_i_lextents_j bounds checks 2026-04-01 23:15:19 -04:00
malloc_conf_2.c Add unit tests for conf parsing and its helpers 2026-03-10 18:14:33 -07:00
malloc_conf_2.sh Add malloc_conf_2_conf_harder 2020-03-31 06:25:08 -07:00
malloc_io.c Fix out-of-bounds write in malloc_vsnprintf when size is 0 2026-04-01 23:15:19 -04:00
math.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
mpsc_queue.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
mq.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
mtx.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
ncached_max.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
nstime.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
oversize_threshold.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
pa.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
pack.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
pack.sh Refactor *decay_time into *decay_ms. 2017-05-18 11:33:45 -07:00
pages.c Refactor init_system_thp_mode and print it in malloc stats. 2026-03-10 18:14:33 -07:00
peak.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
ph.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prng.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_accum.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_accum.sh Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
prof_active.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_active.sh Add the profiling settings for tests explicit. 2021-12-22 20:10:28 -08:00
prof_gdump.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_gdump.sh Enable heap profiling on MacOS 2024-04-09 12:57:01 -07:00
prof_hook.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_hook.sh Making jemalloc max stack depth a runtime option 2022-09-12 13:56:22 -07:00
prof_idump.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_idump.sh Remove --disable-tcache. 2017-04-21 10:06:12 -07:00
prof_log.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_log.sh Add the profiling settings for tests explicit. 2021-12-22 20:10:28 -08:00
prof_mdump.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_mdump.sh Push error handling logic out of core dumping logic 2020-06-29 14:27:50 -07:00
prof_recent.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_recent.sh Add the prof_sys_thread_name feature in the prof_recent unit test. 2023-05-11 09:10:57 -07:00
prof_reset.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_reset.sh Last-N profiling mode 2019-12-30 15:58:57 -08:00
prof_small.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_small.sh Add a test-case for small profiled allocations 2023-07-03 16:19:06 -07:00
prof_stats.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_stats.sh Add the profiling settings for tests explicit. 2021-12-22 20:10:28 -08:00
prof_sys_thread_name.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_sys_thread_name.sh Add the profiling settings for tests explicit. 2021-12-22 20:10:28 -08:00
prof_tctx.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_tctx.sh Add the profiling settings for tests explicit. 2021-12-22 20:10:28 -08:00
prof_thread_name.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
prof_thread_name.sh Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
psset.c Fix psset_pick_purge when last candidate with index 0 dirtiness is ineligible 2026-03-26 10:39:37 -07:00
ql.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
qr.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
rb.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
retained.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
rtree.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
safety_check.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
safety_check.sh Add the profiling settings for tests explicit. 2021-12-22 20:10:28 -08:00
san.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
san.sh San: Rename 'guard' to 'san' 2021-12-15 10:39:17 -08:00
san_bump.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
sc.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
sec.c [SEC] Make SEC owned by hpa_shard, simplify the code, add stats, lock per bin 2026-03-10 18:14:33 -07:00
seq.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
SFMT.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
size_check.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
size_check.sh Add the profiling settings for tests explicit. 2021-12-22 20:10:28 -08:00
size_classes.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
size_classes.sh Renaming limit_usize_gap to disable_large_size_classes 2025-05-06 14:47:35 -07:00
slab.c Move bin inline functions from arena_inlines_b.h to bin_inlines.h 2026-03-10 18:14:33 -07:00
smoothstep.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
spin.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
stats.c Add a mallctl for users to get an approximate of active bytes. 2026-03-10 18:14:33 -07:00
stats_print.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
sz.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
tcache_init.c Handle tcache init failures gracefully 2026-03-10 18:14:33 -07:00
tcache_max.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
tcache_max.sh skip tcache GC for tcache_max unit test 2024-06-25 12:59:45 -07:00
test_hooks.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
thread_event.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
thread_event.sh Build a general purpose thread event handler 2019-11-04 11:15:50 -08:00
ticker.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
tsd.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
uaf.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
witness.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
zero.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
zero.sh Use MALLOC_CONF rather than malloc_conf for tests. 2017-02-23 08:57:02 -08:00
zero_realloc_abort.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
zero_realloc_abort.sh Realloc: Make behavior of realloc(ptr, 0) configurable. 2019-10-29 17:48:44 -07:00
zero_realloc_alloc.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
zero_realloc_alloc.sh Rename zero_realloc option "strict" to "alloc". 2022-04-20 10:27:25 -07:00
zero_realloc_free.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
zero_realloc_free.sh Realloc: Make behavior of realloc(ptr, 0) configurable. 2019-10-29 17:48:44 -07:00
zero_reallocs.c Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00
zero_reallocs.sh Add stats counters for number of zero reallocs 2019-10-29 17:48:44 -07:00