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| author | Theodore Ts'o <tytso@mit.edu> | 2008-01-27 15:45:30 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-01-27 15:45:30 -0500 |
| commit | df200fffd5276d3c8ba201fd61858ba906b77cf6 (patch) | |
| tree | 1dace681e59f72da07ad6010988dae431c3d13d9 /misc | |
| parent | c2dbc18a9425815b6e93eb8b95d05a1168fb6e23 (diff) | |
| download | e2fsprogs-df200fffd5276d3c8ba201fd61858ba906b77cf6.tar.gz | |
e2image: Fix potential overflow if the device name is too long
Adapted from SLES's patch: e2fsprogs-strncat.patch
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'misc')
| -rw-r--r-- | misc/e2image.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/misc/e2image.c b/misc/e2image.c index f17b7849..4313cc0c 100644 --- a/misc/e2image.c +++ b/misc/e2image.c @@ -126,7 +126,7 @@ static void write_image_file(ext2_filsys fs, int fd) hdr.magic_number = EXT2_ET_MAGIC_E2IMAGE; strcpy(hdr.magic_descriptor, "Ext2 Image 1.0"); gethostname(hdr.fs_hostname, sizeof(hdr.fs_hostname)); - strncat(hdr.fs_device_name, device_name, sizeof(hdr.fs_device_name)); + strncpy(hdr.fs_device_name, device_name, sizeof(hdr.fs_device_name)-1); hdr.fs_device_name[sizeof(hdr.fs_device_name) - 1] = 0; hdr.fs_blocksize = fs->blocksize; |