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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/algs/modes/gcm.c
+17 -4
View File
@@ -348,8 +348,14 @@ gcm_mode_decrypt_contiguous_blocks(gcm_ctx_t *ctx, char *data, size_t length,
ctx->gcm_pt_buf = NULL;
return (CRYPTO_HOST_MEMORY);
}
bcopy(ctx->gcm_pt_buf, new, ctx->gcm_pt_buf_len);
vmem_free(ctx->gcm_pt_buf, ctx->gcm_pt_buf_len);
if (ctx->gcm_pt_buf != NULL) {
bcopy(ctx->gcm_pt_buf, new, ctx->gcm_pt_buf_len);
vmem_free(ctx->gcm_pt_buf, ctx->gcm_pt_buf_len);
} else {
ASSERT0(ctx->gcm_pt_buf_len);
}
ctx->gcm_pt_buf = new;
ctx->gcm_pt_buf_len = new_len;
bcopy(data, &ctx->gcm_pt_buf[ctx->gcm_processed_data_len],
@@ -554,8 +560,15 @@ gcm_init(gcm_ctx_t *ctx, unsigned char *iv, size_t iv_len,
* There's not a block full of data, pad rest of
* buffer with zero
*/
bzero(authp, block_size);
bcopy(&(auth_data[processed]), authp, remainder);
if (auth_data != NULL) {
bzero(authp, block_size);
bcopy(&(auth_data[processed]),
authp, remainder);
} else {
ASSERT0(remainder);
}
datap = (uint8_t *)authp;
remainder = 0;
} else {