http://bugzilla.opensuse.org/show_bug.cgi?id=1187360 Bug ID: 1187360 Summary: tpm2_eventlog cannot read /sys/kernel/security/tpm0/binary_bios_measurements Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: aplanas@suse.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- (Note, I think that this is a kernel issue because after fixing bsc#1185869, this was working. See c11 in the previous report for confirmation) In Tumbleweed tpm2_eventlog do not work when pointed to the securefs: # uname -a Linux dhcp189 5.12.9-1-default #1 SMP Thu Jun 3 07:44:58 UTC 2021 (f17eb01) x86_64 x86_64 x86_64 GNU/Linux # tpm2_eventlog /sys/kernel/security/tpm0/binary_bios_measurements ERROR: Unable to run tpm2_eventlog But works when reading the copied file: # cp /sys/kernel/security/tpm0/binary_bios_measurements binary_bios_measurements # tpm2_eventlog binary_bios_measurements | head --- version: 1 events: - EventNum: 0 PCRIndex: 0 EventType: EV_NO_ACTION Digest: "0000000000000000000000000000000000000000" EventSize: 37 SpecID: - Signature: Spec ID Event03 Running strace shows this: # strace tpm2_eventlog /sys/kernel/security/tpm0/binary_bios_measurements ... futex(0x7fba8bafbe18, FUTEX_WAKE_PRIVATE, 2147483647) = 0 openat(AT_FDCWD, "/sys/kernel/security/tpm0/binary_bios_measurements", O_RDONLY) = 3 lseek(3, 0, SEEK_CUR) = 0 newfstatat(3, "", {st_mode=S_IFREG|0440, st_size=0, ...}, AT_EMPTY_PATH) = 0 newfstatat(3, "", {st_mode=S_IFREG|0440, st_size=0, ...}, AT_EMPTY_PATH) = 0 lseek(3, 0, SEEK_SET) = 0 lseek(3, 0, SEEK_SET) = 0 close(3) = 0 write(2, "ERROR: ", 7ERROR: ) = 7 write(2, "Unable to run eventlog", 22Unable to run eventlog) = 22 write(2, "\n", 1 ) = 1 exit_group(1) = ? +++ exited with 1 +++ # strace tpm2_eventlog binary_bios_measurements ... futex(0x7fb147cede18, FUTEX_WAKE_PRIVATE, 2147483647) = 0 openat(AT_FDCWD, "binary_bios_measurements", O_RDONLY) = 3 lseek(3, 0, SEEK_CUR) = 0 newfstatat(3, "", {st_mode=S_IFREG|0440, st_size=10494, ...}, AT_EMPTY_PATH) = 0 newfstatat(3, "", {st_mode=S_IFREG|0440, st_size=10494, ...}, AT_EMPTY_PATH) = 0 lseek(3, 8192, SEEK_SET) = 8192 read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 2302) = 2302 lseek(3, 0, SEEK_SET) = 0 close(3) = 0 openat(AT_FDCWD, "binary_bios_measurements", O_RDONLY) = 3 newfstatat(3, "", {st_mode=S_IFREG|0440, st_size=10494, ...}, AT_EMPTY_PATH) = 0 read(3, "\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0%\0\0\0"..., 8192) = 8192 read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 4096) = 2302 close(3) = 0 write(1, "---", 3) = 3 ... -- You are receiving this mail because: You are the assignee for the bug.