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linuxkm rsa: fix ret value usage for crypto_sig_sign.

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This commit is contained in:
jordan
2025-05-29 16:22:40 -05:00
parent 2a9269e654
commit 0b64a5549c
1 changed files with 10 additions and 0 deletions
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10
linuxkm/lkcapi_rsa_glue.c
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@@ -1364,7 +1364,13 @@ static int km_pkcs1_sign(struct crypto_sig *tfm,
goto pkcs1_sign_out; goto pkcs1_sign_out;
} }
/* in 6.15 crypto_sig_sign switched from returning 0 on success to
* returning sig_len. */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 15, 0)
err = sig_len; err = sig_len;
#else
err = 0;
#endif /* linux >= 6.15.0 */
pkcs1_sign_out: pkcs1_sign_out:
if (msg != NULL) { free(msg); msg = NULL; } if (msg != NULL) { free(msg); msg = NULL; }
@@ -3107,12 +3113,16 @@ static int linuxkm_test_pkcs1_driver(const char * driver, int nbits,
goto test_pkcs1_end; goto test_pkcs1_end;
} }
/* in 6.15 crypto_sig_sign switched from returning 0 on success to
* returning sig_len. */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 15, 0)
if ((word32) ret != sig_len) { if ((word32) ret != sig_len) {
pr_err("error: crypto_sig_sign returned %d, expected %d\n", ret, pr_err("error: crypto_sig_sign returned %d, expected %d\n", ret,
sig_len); sig_len);
test_rc = BAD_FUNC_ARG; test_rc = BAD_FUNC_ARG;
goto test_pkcs1_end; goto test_pkcs1_end;
} }
#endif /* linux >= 6.15.0 */
n_diff = memcmp(km_sig, sig, sig_len); n_diff = memcmp(km_sig, sig, sig_len);
if (n_diff) { if (n_diff) {