| Summary: | Conditional jump or move depends on uninitialised value | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Nikola Pajkovsky <npajkovs> |
| Component: | valgrind | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | rawhide | CC: | dhoward, dodji, jakub, schwab |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-01-28 14:55:09 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
Yeah, valgrind needs to be rebuilt against glibc 2.13, as it suppressions are currently for 2.12* instead of 2.13*. Should be fixed with valgrind-3.6.0-2.fc15. |
Description of problem: There is condition jump in function *getline* Version-Release number of selected component (if applicable): $ rpm -q glibc glibc-2.13.90-1.x86_64 How reproducible: $ cat getline.c #include <stdio.h> #include <stdlib.h> int main(void) { char *l = NULL; size_t len = 0; ssize_t read; FILE *fp = fopen("/etc/ethers", "r"); while ((read = getline(&l, &len, fp)) != -1) { } free(l); fclose(fp); } $ cat Makefile PROGRAM = getline CFLAGS = -std=gnu99 -pedantic -Wall -g -ggdb CC = gcc SRCS += $(PROGRAM).c OBJS += $(addsuffix .o, $(basename $(SRCS))) .PHONY: build .PHONY: clean build: $(PROGRAM) $(PROGRAM): $(OBJS) $(CC) $(CFLAGS) $(OBJS) -o $@ clean: rm -f *.o $(PROGRAM) Steps to Reproduce: 1. just run it under valgrind Actual results: $ valgrind ./getline ==329== Memcheck, a memory error detector ==329== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==329== Using Valgrind-3.6.0 and LibVEX; rerun with -h for copyright info ==329== Command: ./getline ==329== ==329== Conditional jump or move depends on uninitialised value(s) ==329== at 0x3437E16FD6: index (strchr.S:56) ==329== by 0x3437E0776A: expand_dynamic_string_token (dl-load.c:324) ==329== by 0x3437E080B1: _dl_map_object (dl-load.c:2179) ==329== by 0x3437E017DD: map_doit (rtld.c:629) ==329== by 0x3437E0E515: _dl_catch_error (dl-error.c:178) ==329== by 0x3437E00F16: do_preload (rtld.c:813) ==329== by 0x3437E044A7: dl_main (rtld.c:1696) ==329== by 0x3437E14B23: _dl_sysdep_start (dl-sysdep.c:244) ==329== by 0x3437E04F8E: _dl_start (rtld.c:334) ==329== by 0x3437E01607: ??? (in /lib64/ld-2.13.90.so) ==329== ==329== Conditional jump or move depends on uninitialised value(s) ==329== at 0x3437E16FDB: index (strchr.S:59) ==329== by 0x3437E0776A: expand_dynamic_string_token (dl-load.c:324) ==329== by 0x3437E080B1: _dl_map_object (dl-load.c:2179) ==329== by 0x3437E017DD: map_doit (rtld.c:629) ==329== by 0x3437E0E515: _dl_catch_error (dl-error.c:178) ==329== by 0x3437E00F16: do_preload (rtld.c:813) ==329== by 0x3437E044A7: dl_main (rtld.c:1696) ==329== by 0x3437E14B23: _dl_sysdep_start (dl-sysdep.c:244) ==329== by 0x3437E04F8E: _dl_start (rtld.c:334) ==329== by 0x3437E01607: ??? (in /lib64/ld-2.13.90.so) ==329== ==329== ==329== HEAP SUMMARY: ==329== in use at exit: 0 bytes in 0 blocks ==329== total heap usage: 2 allocs, 2 frees, 688 bytes allocated ==329== ==329== All heap blocks were freed -- no leaks are possible ==329== ==329== For counts of detected and suppressed errors, rerun with: -v ==329== Use --track-origins=yes to see where uninitialised values come from ==329== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 4 from 4) Expected results: be silent