diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-04-10 11:02:58 +0200 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2019-04-12 22:00:42 +0200 |
| commit | 74f5baa28bebf243b372d63a673ddf214cbc50b6 (patch) | |
| tree | 0970546084301513b98520040a2b0f423eee1d41 /lib/efi_loader/efi_device_path.c | |
| parent | 07805f203bec8e8e24837428c2fab39533168bf2 (diff) | |
efi_loader: add protection for block_dev
Check the value of block_dev before to use this pointer.
This patch solves problem for the command "load" when ubifs
is previously mounted: in this case the function
blk_get_device_part_str("ubi 0") don't return error but return
block_dev = NULL and then data abort.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'lib/efi_loader/efi_device_path.c')
| -rw-r--r-- | lib/efi_loader/efi_device_path.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c index 1b08ca8f62..d8c052d6ec 100644 --- a/lib/efi_loader/efi_device_path.c +++ b/lib/efi_loader/efi_device_path.c @@ -968,7 +968,7 @@ efi_status_t efi_dp_from_name(const char *dev, const char *devnr, if (!is_net) { part = blk_get_device_part_str(dev, devnr, &desc, &fs_partition, 1); - if (part < 0) + if (part < 0 || !desc) return EFI_INVALID_PARAMETER; if (device) |