The following commit has been merged into the efi/urgent branch of tip:
Commit-ID: d6c066fda90d578aacdf19771a027ed484a79825 Gitweb: https://git.kernel.org/tip/d6c066fda90d578aacdf19771a027ed484a79825 Author: Vladis Dronov vdronov@redhat.com AuthorDate: Sun, 08 Mar 2020 09:08:55 +01:00 Committer: Ingo Molnar mingo@kernel.org CommitterDate: Sun, 08 Mar 2020 09:56:48 +01:00
efi: Add a sanity check to efivar_store_raw()
Add a sanity check to efivar_store_raw() the same way efivar_{attr,size,data}_read() and efivar_show_raw() have it.
Signed-off-by: Vladis Dronov vdronov@redhat.com Signed-off-by: Ard Biesheuvel ardb@kernel.org Signed-off-by: Ingo Molnar mingo@kernel.org Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200305084041.24053-3-vdronov@redhat.com Link: https://lore.kernel.org/r/20200308080859.21568-25-ardb@kernel.org --- drivers/firmware/efi/efivars.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c index 69f13bc..aff3dfb 100644 --- a/drivers/firmware/efi/efivars.c +++ b/drivers/firmware/efi/efivars.c @@ -208,6 +208,9 @@ efivar_store_raw(struct efivar_entry *entry, const char *buf, size_t count) u8 *data; int err;
+ if (!entry || !buf) + return -EINVAL; + if (in_compat_syscall()) { struct compat_efi_variable *compat;