diff options
| author | Karel Zak | 2014-07-14 14:53:41 +0200 |
|---|---|---|
| committer | Karel Zak | 2014-07-14 15:05:22 +0200 |
| commit | 7c2cfb18964b00881e65c461742af9038bd5b287 (patch) | |
| tree | 03881cd0a38bab944fd9d84df86ce62f90dc1162 /libfdisk/src/sgi.c | |
| parent | build-sys: release++ (v2.25-rc2) (diff) | |
| download | kernel-qcow2-util-linux-7c2cfb18964b00881e65c461742af9038bd5b287.tar.gz kernel-qcow2-util-linux-7c2cfb18964b00881e65c461742af9038bd5b287.tar.xz kernel-qcow2-util-linux-7c2cfb18964b00881e65c461742af9038bd5b287.zip | |
libfdisk: make first sector buffer usage more robust
$ ~/util-linux/fdisk -b 4096 xxx
..
Segmentation fault
The buffer has to be reinitialized always when we apply a new
device properties (e.g. sector size).
Reported-by: Bernhard Voelker <mail@bernhard-voelker.de>
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'libfdisk/src/sgi.c')
| -rw-r--r-- | libfdisk/src/sgi.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libfdisk/src/sgi.c b/libfdisk/src/sgi.c index cd12d8049..cf1354132 100644 --- a/libfdisk/src/sgi.c +++ b/libfdisk/src/sgi.c @@ -908,6 +908,7 @@ static int sgi_create_disklabel(struct fdisk_context *cxt) { struct fdisk_sgi_label *sgi; struct sgi_disklabel *sgilabel; + int rc; assert(cxt); assert(cxt->label); @@ -936,7 +937,10 @@ static int sgi_create_disklabel(struct fdisk_context *cxt) } } #endif - fdisk_zeroize_firstsector(cxt); + rc = fdisk_init_firstsector_buffer(cxt); + if (rc) + return rc; + sgi = (struct fdisk_sgi_label *) cxt->label; sgi->header = (struct sgi_disklabel *) cxt->firstsector; |