Bug#213721: marked as done (libc6: Translation gid->groupname hangs if groupname doesnt exists)
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From: Ian Hubbertz <ian@planet-school.de>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: libc6: Translation gid->groupname hangs if groupname doesnt exists
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Date: Thu, 02 Oct 2003 11:37:14 +0200
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Package: libc6
Version: 2.3.2-7
Severity: important
All programs trying to translate a GID to a groupname (like ls -l, but
also rsync) hangs when trying to resolve a gid that doesnt exists in
/etc/group. Even "chown 0:0 $DIR" hangs.
* strace shows that the programs are in an infinite loop trying to open
/etc/group.
* I found out, that this only happens if there is a large entry in
/etc/group.
* I had the following entry in /etc/group:
---------------------------
kunden:x:514:k2001-1,k2001-2,k2002-1,k2003-1,k2004-1,k2005-1,k2006-1,k2007-1,k2008-1,k2009-1,k2010-1,k2012-1,k2014-1,k2016-1,k2018-1,k2020-1,k2021-1,k2022-1,k2023-2,k2024-1,k2025-1,k2026-1,k2027-1,k2028-1,k2029-1,k2030-1,k2031-1,k2031-2,k2031-3,k2032-1,k2033-1,k2036-1,k2037-1,k2036-2,k2036-3,k2039-1,k2039-2,k2039-3,k2040-1,k2040-2,k2040-3,k2041-1,k2042-1,k2043-1,k2044-1,k2045-1,k2046-1,k2047-1,k2047-2,k2047-3,k2049-1,k2050-1,k2050-2,k2050-3,k2051-1,k2052-1,k2053-1,k2054-1,k2055-1,k2056-1,k2057-1,k2058-1,k2060-1,k2061-1,k2062-1,kk2063-1,k2063-1,k2065-1,k2066-1,k2067-1,k2068-1,k2069-1,k2070-1,k2071-1,k2072-1,k2073-1,k2073-2,k2073-3,k2073-4,k2073-5,k2076-1,k2077-1,k2078-1,k2079-1,k2080-1,k2081-1,k2082-1,k1999-1,k2083-1,k2084-1,k2085-1,k2086-1,k2087-1,k2088-1,k2091-1,k2092-1,k2093-1,k2094-1,k2095-1,k2096-1,k2097-1,k2098-1,k2099-1,k2100-1,k2098-2,k2098-3,k2101-1,k2102-1,k2103-1,k2104-1,k2105-1,k2106-1,k2107-1,k2108-1,k2109-1,k2110-1,k2112-1,k2113-1,k2114-1,k2115-1,k2116-1,k2117-1,
k2118-1,k2119-1,k2120-1,k2121-1,k2123-1,k2124-1,k2125-1,k2126-1,k2127-1,k2128-1,k2129-1,k2130-1,k2131-1,k2132-1,k2133-1,k2134-1,k2135-1,k2137-1,k2138-1,k2139-2,k2141-1,k2142-1,k2143-1,k2144-1,k2145-1,k2146-1,k2147-1,k2148-1,k2149-1,k2150-1,k2151-1,k2152-1,k2153-1,k2155-1,k2155-2,k2156-1,k2157-1,k2159-1,k2160-1,k2161-1,k2162-1,k2163-1,k2164-1,k2165-1,k2166-1,k2167-1,k2168-1,k2169-1,k2170-2,k2170-3,k2170-4,k2170-5,k2171-1,k2172-1,k2173-1,k2174-1,k2175-1,k2176-2,k2177-1,k2178-1,k2179-1,k2179-2,k2181-1,k2181-2,k2183-1,k2184-1,k2186-1,k2187-1,k2189-1,k2190-1,k2191-1,k2192-1,k2194-1,k2200-1,k2202-1,k2203-1,k2205-1,k2207-1,k2208-1,k2209-1,k2210-1,k2212-1,k1939-1,k1953-1,k1942-1,k1943-1,k2000-1,k1277-1,k2213-1,k2214-1,k2215-1,k2216-1,k2217-1,k2218-1,k2219-1,k2220-1,k2221-1,k2222-1,k2223-1,k2224-1,k2225-1,k2226-1,k2227-1,k2228-1,k2229-1,k2230-1,k2231-1,k2232-1,k2233-1,k2234-1,k2235-1,k2236-1,k2237-1,k2238-1,k2239-1,k2240-1,k2241-1,k2242-1,k2242-2,k2243-1,k2244-1,k2245-1,k2247-1,k2248
-1,k2250-1,k2251-1,k2252-1,k2253-1,k2254-1,k2255-1,k2256-1,k2257-1,k2258-1,k2259-1,k2260-1,k2261-1,k2262-1,k2263-1,k2264-1,k2265-1,k2266-1,k2267-1,k2268-1,k2269-1,k2270-1,k2271-1,k2272-1,k2273-1,k2274-1,k2275-1,k2276-1,k2277-1,k2278-1,k2279-1,k2280-1,k2281-1,k2282-1,k2283-1,k2284-1,k2285-1,k2286-1,k2287-1,k2288-1,k2289-1,k2290-1,k2291-1,k2292-1,k2293-1,k2294-1,k2295-1,k2296-1,k2297-1,k2298-1,k2299-1,k2300-1,k2301-1,k2302-1,k2303-1,k2305-1,k2306-1,k2307-1,k2308-1,k2309-1,k2310-1,k2311-1,k2312-1,k2313-1,k2314-1,k2315-1,k2316-1,k1042-1,k2317-1,k2318-1,k2319-1,k2320-1,k2321-1,k2322-1,k2323-1,k2324-1,k2325-1,k2326-1,k2327-1,k2328-1,k2329-1,k2330-1,k2331-1,k2332-1,k2333-1,k2334-1,k2335-1,k2336-1,k2337-1,k2338-1,k2339-1,k2340-1,k2341-1,k2342-1,k2343-1,k2344-1,k2345-1,k2346-1,k2347-1,k2349-1,k2350-1,k2352-1,k2353-1,k2354-1,k2355-1,k2356-1,k2357-1,k2358-1,k2359-1,k2360-1,k2361-1,k2362-1,k2363-1,k2364-1,k2365-1,k2367-1,k2368-1,k2369-1,k2370-1,k2371-1,k2372-1,k2373-1,k2374-1,k2375-1,k2
376-1,k2377-1,k1997-1,k2378-1,k1990-1,k1989-1,k1977-1,k2379-1,k2380-1,k2381-1,k2382-1,k2383-1,k2385-1,k2386-1,k2387-1,k2388-1,k2389-1,k2390-1,k2391-1,k2393-1,k2394-1,k2395-1,k2396-1,k2397-1,k2398-1,k2399-1,k2400-1,k2401-1,k2402-1,k2403-1,k2404-1,k2405-1,k2406-1,k2407-1,k2408-1,k2409-1,k2410-1,k2411-1,k2412-1,k2413-1,k2414-1,k2415-1,k2416-1,k2417-1,k2418-1,k2419-1,k2420-1,k2421-1,k2422-1,k2423-1,k2424-1,k2425-1,k2426-1,k2427-1,k2428-1,k2429-1,k2430-1,k2431-1,k2433-1,k2434-1,k2435-1,k2436-1,k2437-1,k2438-1,k2439-1,k2440-1,k1221-1,k2441-1,k2442-1,k2443-1,k2444-1,k2446-1,k2445-1,k2447-1,k2448-1,k2449-1,k2450-1,k2451-1,k2452-1,k2453-1,k2454-1,k2455-1,k2456-1,k2457-1,k2458-1,k2459-1,k1005-1,k2460-1,k2461-1,k2462-1,k2463-1,k2464-1,k2465-1,k2466-1,k2467-1,k2468-1,k2469-1,k2470-1,k2471-1,k2472-1,k2473-1,k2474-1,k2475-1,k2476-1,k2477-1,k2478-1,k1994-1,k1932-1,k2479-1,k1862-1,k2480-1,k2481-1,k2482-1,k2483-1,k2484-1,k2485-1,k2486-1,k2487-1,k2488-1,k2489-1,k2490-1,k2491-1,k2493-1,k2494-1
,k2495-1,k2496-1,k2497-1,k1958-1,k1959-1,k2498-1,k2500-1,k2501-1,k2502-1,k2503-1,k2504-1,k2505-1,k2506-1,k2507-1,k2508-1,k2509-1,k1634-1,k2530-1,k2724-1,k2725-1,k2726-1,k2727-1,k2728-1,k2730-1,k2731-1,k2732-1,k2738-1,k2739-1,k2740-1,k2745-1
---------------------------
That are 4198 characters and 523 users in group.
* This line is unchanged since a long time, it worked fine with older
versions of libc.
* /etc/nsswitch.conf is at default
-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux turboliesel 2.4.22-rc2 #1 Thu Aug 21 18:20:33 CEST 2003 i686
Locale: LANG=C, LC_CTYPE=C
Versions of packages libc6 depends on:
ii libdb1-compat 2.1.3-7 The Berkeley database routines [gl
-- no debconf information
---------------------------------------
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Date: Fri, 31 Oct 2003 10:25:03 -0500
From: Daniel Jacobowitz <dan@debian.org>
To: Ian Hubbertz <ian@planet-school.de>, 213721-done@bugs.debian.org
Subject: Re: Bug#213721: libc6: Translation gid->groupname hangs if groupname doesnt exists
Message-ID: <20031031152503.GA512@nevyn.them.org>
References: <[🔎] 20031002093714.2862.qmail@turboliesel.planet-school.de>
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On Thu, Oct 02, 2003 at 11:37:14AM +0200, Ian Hubbertz wrote:
> Package: libc6
> Version: 2.3.2-7
> Severity: important
>
>
> All programs trying to translate a GID to a groupname (like ls -l, but
> also rsync) hangs when trying to resolve a gid that doesnt exists in
> /etc/group. Even "chown 0:0 $DIR" hangs.
This is now fixed in unstable.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer
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