From d85279e3bec7578f8c238aec92539985c2032616 Mon Sep 17 00:00:00 2001 From: Stephan Mueller Date: Thu, 30 Jul 2026 08:38:10 +0200 Subject: [PATCH] Fix potential infinite loop Signed-off-by: Zoltan Fridrich Signed-off-by: Stephan Mueller CVE: CVE-2026-71227 Upstream-Status: Backport [https://github.com/smuellerDD/libkcapi/commit/9a29cc2ce0fa87ec212d58118402eafe07db3f60] Dropped changes to the CHANGES.md file. Signed-off-by: Ankur Tyagi --- lib/kcapi-kernel-if.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/kcapi-kernel-if.c b/lib/kcapi-kernel-if.c index 8a12c09..a54cdaa 100644 --- a/lib/kcapi-kernel-if.c +++ b/lib/kcapi-kernel-if.c @@ -436,6 +436,8 @@ int _kcapi_aio_read_all(struct kcapi_handle *handle, size_t toread, if (rc < 0) return err == 0 ? rc : err; + if (rc == 0) + return err == 0 ? -ETIMEDOUT : err; for (i = 0; i < rc; i++) { struct iocb *cb; @@ -509,7 +511,7 @@ int _kcapi_aio_read_iov(struct kcapi_handle *handle, timeout.tv_sec = 0; timeout.tv_nsec = 10000; ret = _kcapi_aio_read_all(handle, iovlen, &timeout); - if (ret < 0) + if (ret < 0 && ret != -ETIMEDOUT) return ret; }