Date: Wed, 29 Jul 2026 17:49:01 +0000 From: Mark Johnston <markj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: John Baldwin <jhb@FreeBSD.org> Subject: git: 4cb888c9ec4b - stable/14 - wg(4): Check for crypto operation errors Message-ID: <6a6a3d0d.3a5d4.293122d1@gitrepo.freebsd.org>
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The branch stable/14 has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=4cb888c9ec4b8704f1789701b27a0901879cdc6d commit 4cb888c9ec4b8704f1789701b27a0901879cdc6d Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2026-07-27 15:36:55 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2026-07-29 17:48:54 +0000 wg(4): Check for crypto operation errors In particular, handle authentication errors due to bad MACs when decrypting packets. Since the current dispatch code assumes synchronous OCF sessions by design, explicitly reject any created OCF session that is not synchronous. Software sessions are always synchronous in practice, so this should be a nop. Approved by: so Security: FreeBSD-SA-26:52.if_wg Security: CVE-2026-58085 Reviewed by: markj Sponsored by: Chelsio Communications --- sys/dev/wg/wg_crypto.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/sys/dev/wg/wg_crypto.c b/sys/dev/wg/wg_crypto.c index 53441ef25b40..82b80c7fd451 100644 --- a/sys/dev/wg/wg_crypto.c +++ b/sys/dev/wg/wg_crypto.c @@ -230,6 +230,8 @@ chacha20poly1305_encrypt_mbuf(struct mbuf *m, const uint64_t nonce, crp.crp_cipher_key = key; crp.crp_callback = crypto_callback; ret = crypto_dispatch(&crp); + if (ret == 0) + ret = crp.crp_etype; crypto_destroyreq(&crp); return (ret); } @@ -253,6 +255,8 @@ chacha20poly1305_decrypt_mbuf(struct mbuf *m, const uint64_t nonce, crp.crp_cipher_key = key; crp.crp_callback = crypto_callback; ret = crypto_dispatch(&crp); + if (ret == 0) + ret = crp.crp_etype; crypto_destroyreq(&crp); if (ret) return (ret); @@ -270,9 +274,14 @@ crypto_init(void) .csp_cipher_klen = CHACHA20POLY1305_KEY_SIZE, .csp_flags = CSP_F_SEPARATE_AAD | CSP_F_SEPARATE_OUTPUT }; - int ret = crypto_newsession(&chacha20_poly1305_sid, &csp, CRYPTOCAP_F_SOFTWARE); + int ret = crypto_newsession(&chacha20_poly1305_sid, &csp, + CRYPTOCAP_F_SOFTWARE); if (ret != 0) return (ret); + if (!CRYPTO_SESS_SYNC(chacha20_poly1305_sid)) { + crypto_freesession(chacha20_poly1305_sid); + return (ENXIO); + } return (0); }home | help
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