[LU-17718] Coverity: 424705 (String overflow) under upcall_cache.c

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.16.0
• Labels: patch
• Severity: 3
• Assignee: Sebastien Buisson
• Reporter: Sebastien Buisson

Description

CID 424705: Security best practices violations (STRING_OVERFLOW)
/lustre/obdclass/upcall_cache.c: 187 in upcall_cache_set_upcall()

181     invalid:
182         OBD_FREE(upcall, count + 1);
183         return -EINVAL;
184     
185     valid:
186         down_write(&cache->uc_upcall_rwsem);
  CID 424705:  Security best practices violations  (STRING_OVERFLOW)
  You might overrun the 1024-character fixed-size string "cache->uc_upcall" by copying "upcall" without checking the length.
187         strcpy(cache->uc_upcall, upcall);
188         up_write(&cache->uc_upcall_rwsem);
189     
190         OBD_FREE(upcall, count + 1);
191         return 0;
192     }

Issue Links

• is related to: LU-17724 sanity-sec test_69: crash the setting sptlrpc.gss.rsi_upcall=prog