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132ddc42c7
The shim_lock module registers a verifier to call shim's verify, but the handler is registered even when the shim_lock protocol was not installed. This doesn't cause a NULL pointer dereference in shim_lock_write() because the shim_lock_init() function just returns GRUB_ERR_NONE if sl isn't set. But in that case there's no point to even register the shim_lock verifier since won't do anything. Additionally, it is only useful when Secure Boot is enabled. Finally, don't assume that the shim_lock protocol will always be present when the shim_lock_write() function is called, and check for it on every call to this function. Reported-by: Michael Chang <mchang@suse.com> Reported-by: Peter Jones <pjones@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> |
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| .. | ||
| efifwsetup.c | ||
| fixvideo.c | ||
| loadbios.c | ||
| lsefi.c | ||
| lsefimmap.c | ||
| lsefisystab.c | ||
| lssal.c | ||
| shim_lock.c | ||
| smbios.c | ||
| tpm.c | ||