Bug 4905

Summary:	glibc 2.6.1: nscd aborts at hstcache.c:389
Product:	glibc	Reporter:	Andreas Steinmetz <ast>
Component:	nscd	Assignee:	Ulrich Drepper <drepper.fsp>
Status:	RESOLVED FIXED
Severity:	normal	CC:	glibc-bugs
Priority:	P2	Flags:	fweimer: security-
Version:	unspecified
Target Milestone:	---
Host:	i686-pc-linux-gnu	Target:	i686-pc-linux-gnu
Build:	i686-pc-linux-gnu	Last reconfirmed:

Description Andreas Steinmetz 2007-08-08 16:06:37 UTC

nscd of glibc-2.6.1 terminates about once within 24 to 48 hours. Running it with
'-d' gives:

1359: handle_request: request received (Version = 2) from PID 993
1359:   GETFDPW
1359: handle_request: request received (Version = 2) from PID 993
1359:   GETPWBYUID (65534)
1359: handle_request: request received (Version = 2) from PID 993
1359:   GETFDHST
1359: handle_request: request received (Version = 2) from PID 993
1359:   GETHOSTBYNAME (zeus)
1359: Reloading "swupmf.adobe.com" in hosts cache!
nscd: hstcache.c:389: cache_addhst: Assertion `hst->h_addr_list[1] == ((void
*)0)' failed.

Compiler is vanilla gcc-4.1.2, binutils is vanilla binutils-2.17.

Comment 1 Ulrich Drepper 2007-08-22 03:31:46 UTC

You don't nearly give enough information for me to be sure what the problem is.
 I have found a path where this could happen and this is fixed in cvs.

Try this version.  If the problem should persist specify also what NSS services
you use and what they could have found (i.e., the info returned by the services).

Comment 2 Andreas Steinmetz 2007-08-22 07:40:01 UTC

Sorry, I didn't have more information.
I'm running nscd now with the modified hstcache.c. The fix looks reasonable. If
nscd doesn't abort during the next week I'll assume the fix as working.