| commit | 62b71cd73d41ddac6b1760402bbe8c4932e23531 | [log] [tgz] |
|---|---|---|
| author | Oleksandr Tymoshenko <ovt@google.com> | Sat Mar 23 06:33:33 2024 +0000 |
| committer | Ard Biesheuvel <ardb@kernel.org> | Sun Mar 24 09:28:33 2024 +0100 |
| tree | 09e447a00f1f8a8b0f83dcf9de72955a1798c1b1 | |
| parent | df7ecce842b846a04d087ba85fdb79a90e26a1b0 [diff] |
efi: fix panic in kdump kernel
Check if get_next_variable() is actually valid pointer before
calling it. In kdump kernel this method is set to NULL that causes
panic during the kexec-ed kernel boot.
Tested with QEMU and OVMF firmware.
Fixes: bad267f9e18f ("efi: verify that variable services are supported")
Signed-off-by: Oleksandr Tymoshenko <ovt@google.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>