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efi: Add a sanity check to efivar_store_raw()

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commit d6c066fda90d578aacdf19771a027ed484a79825 upstream.

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 <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Vladis Dronov 2020-03-08 09:08:55 +01:00 • committed by Greg Kroah-Hartman
commit 849233b742
1 changed files with 3 additions and 0 deletions
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3
drivers/firmware/efi/efivars.c
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@ -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;