[PATCH 04/19] sysfs_unique_holder(): Check read() return value before using as buffer index
From: <hidden>
Date: 2011-11-01 15:09:20
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Jes Sorensen <redacted> Signed-off-by: Jes Sorensen <redacted> --- sysfs.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/sysfs.c b/sysfs.c
index 05f0118..10e1597 100644
--- a/sysfs.c
+++ b/sysfs.c@@ -804,6 +804,8 @@ int sysfs_unique_holder(int devnum, long rdev) } n = read(fd, buf, sizeof(buf)-1); close(fd); + if (n < 0) + continue; buf[n] = 0; if (sscanf(buf, "%d:%d%c", &mj, &mn, &c) != 3 || c != '\n') {
--
1.7.6.4