On Sat, 22 Dec 2007 23:30:56 PST, Andrew Morton said: > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.24-rc6/2.6.24-rc6-mm1/ Looks like an uninitialized variable dereference for SEPARATOR events: # mount -t securityfs none /sys/kernel/security/ # ls /sys/kernel/security/ tpm0 # l /sys/kernel/security/tpm0/ total 0 0 -r--r----- 1 root root 0 2007-12-26 23:28 ascii_bios_measurements 0 -r--r----- 1 root root 0 2007-12-26 23:28 binary_bios_measurements # cat /sys/kernel/security/tpm0/ascii_bios_measurements 0 0000000000000000000000000000000000000000 07 [S-CRTM Contents] 0 0000000000000000000000000000000000000000 07 [S-CRTM Contents] 0 0000000000000000000000000000000000000000 07 [S-CRTM Contents] 0 0000000000000000000000000000000000000000 07 [S-CRTM Contents] 4 c1e25c3f6b0dc78d57296aa2870ca6f782ccf80f 05 [Calling INT 19h] 0 85e53271e14006f0265921d02d4d736cdc580b0b 04 [ÿ] 1 85e53271e14006f0265921d02d4d736cdc580b0b 04 [ÿ] 2 85e53271e14006f0265921d02d4d736cdc580b0b 04 [ÿ] 3 85e53271e14006f0265921d02d4d736cdc580b0b 04 [ÿ] 4 85e53271e14006f0265921d02d4d736cdc580b0b 04 [ÿ] 5 85e53271e14006f0265921d02d4d736cdc580b0b 04 [ÿ] 6 85e53271e14006f0265921d02d4d736cdc580b0b 04 [ÿ] 7 85e53271e14006f0265921d02d4d736cdc580b0b 04 [ÿ] 4 38f30a0a967fcf2bfee1e3b2971de540115048c8 05 [Returned INT 19h] 4 f9d3a33e4ba6109fb60e8df6ec0f10330733c8b2 0c [Compact Hash] 5 9bd5c812613f67ce1c75d0ea48b9933a547683cb 0c [Compact Hash] Looks like the problem is likely in get_event_name: case NONHOST_INFO: name = tcpa_event_type_strings[event->event_type]; n_len = strlen(name); break; case SEPARATOR: case ACTION: if (MAX_TEXT_EVENT > event->event_size) { name = event_entry; n_len = event->event_size; } break; Should there be a 'break;' after the SEPARATOR line? Given the name, it probably doesn't have a name/length pair attached to an event, right?
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- From: Andrew Morton <[email protected]>
- 2.6.24-rc6-mm1
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