Re: [Libguestfs] [PATCH v1] ldmtool: fix NULL pointer dereference

2023-06-19 Thread Laszlo Ersek
On 6/19/23 16:36, Vincent Mailhol wrote: > If /sys/block can not be opened, get_devices() returns NULL. > > cmdline() does not check this result and below code snippet: > > scanned = get_devices(); > devices = (gchar **) scanned->data; > > results in a segmentation fault. >

[Libguestfs] [PATCH v1] ldmtool: fix NULL pointer dereference

2023-06-19 Thread Vincent Mailhol
If /sys/block can not be opened, get_devices() returns NULL. cmdline() does not check this result and below code snippet: scanned = get_devices(); devices = (gchar **) scanned->data; results in a segmentation fault. Add a check on scanned. Relevant logs: Unable to open /