On Wed, 12 Jun 2019, Milan Broz wrote: > If clk_enable is not defined and chip initialization > is canceled code hits null dereference. > > Easily reproducible with vTPM init fail: > swtpm chardev --tpmstate dir=nonexistent_dir --tpm2 --vtpm-proxy > > BUG: kernel NULL pointer dereference, address: 00000000 > ... > Call Trace: > tpm_chip_start+0x9d/0xa0 [tpm] > tpm_chip_register+0x10/0x1a0 [tpm] > vtpm_proxy_work+0x11/0x30 [tpm_vtpm_proxy] > process_one_work+0x214/0x5a0 > worker_thread+0x134/0x3e0 > ? process_one_work+0x5a0/0x5a0 > kthread+0xd4/0x100 > ? process_one_work+0x5a0/0x5a0 > ? kthread_park+0x90/0x90 > ret_from_fork+0x19/0x24 > > Signed-off-by: Milan Broz <gmazyland@xxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx Reviewed-by: James Morris <jamorris@xxxxxxxxxxxxxxxxxxx> -- James Morris <jmorris@xxxxxxxxx>
