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Add --enable-asan and --enable-ubsan switches

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`configure` now accepts `--enable-asan` and `--enable-ubsan` switches
which results in passing `-fsanitize=address`
and `-fsanitize=undefined`, respectively, to the compiler. Those
flags are enabled in GitHub workflows for ZTS and zloop. Errors
reported by both instrumentations are corrected, except for:

- Memory leak reporting is (temporarily) suppressed. The cost of
  fixing them is relatively high compared to the gains.

- Checksum computing functions in `module/zcommon/zfs_fletcher*`
  have UBSan errors suppressed. It is completely impractical
  to enforce 64-byte payload alignment there due to performance
  impact.

- There's no ASan heap poisoning in `module/zstd/lib/zstd.c`. A custom
  memory allocator is used there rendering that measure
  unfeasible.

- Memory leaks detection has to be suppressed for `cmd/zvol_id`.
  `zvol_id` is run by udev with the help of `ptrace(2)`. Tracing is
  incompatible with memory leaks detection.

Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #12928
This commit is contained in:
Damian Szuberski
2022-02-03 23:35:38 +01:00
committed by GitHub
parent aa9905d89b
commit 63652e1546
50 changed files with 253 additions and 62 deletions
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module/icp/io/sha2_mod.c
+7 -2
View File
@@ -710,8 +710,13 @@ sha2_mac_init_ctx(sha2_hmac_ctx_t *ctx, void *keyval, uint_t length_in_bytes)
(void) bzero(ipad, block_size);
(void) bzero(opad, block_size);
(void) bcopy(keyval, ipad, length_in_bytes);
(void) bcopy(keyval, opad, length_in_bytes);
if (keyval != NULL) {
(void) bcopy(keyval, ipad, length_in_bytes);
(void) bcopy(keyval, opad, length_in_bytes);
} else {
ASSERT0(length_in_bytes);
}
/* XOR key with ipad (0x36) and opad (0x5c) */
for (i = 0; i < blocks_per_int64; i ++) {