Attachment 585639 Details for Bug 823270 – grubby --default-kernel segault when run as user

grubby --default-kernel segault when run as user

grubby-default-kernel-segfault_as_user.txt (text/plain), 14.23 KB, created by Nicolas Chauvet (kwizart) on 2012-05-20 13:01:12 UTC

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Creator: Nicolas Chauvet (kwizart)

Created: 2012-05-20 13:01:12 UTC

Size: 14.23 KB

patch

obsolete

>$ gdb grubby
>GNU gdb (GDB) Fedora (7.4.50.20120120-46.fc17)
>Copyright (C) 2012 Free Software Foundation, Inc.
>License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
>This is free software: you are free to change and redistribute it.
>There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>and "show warranty" for details.
>This GDB was configured as "x86_64-redhat-linux-gnu".
>For bug reporting instructions, please see:
><http://www.gnu.org/software/gdb/bugs/>...
>Reading symbols from /usr/sbin/grubby...Reading symbols from /usr/lib/debug/sbin/grubby.debug...done.
>done.
>(gdb) run --default-kernel
>Starting program: /usr/sbin/grubby --default-kernel
>
>Program received signal SIGSEGV, Segmentation fault.
>readConfig (inName=0x0, cfi=cfi@entry=0x60ccc0) at grubby.c:933
>933	    if (!strcmp(inName, "-")) {
>(gdb) thread apply all bt full
>
>Thread 1 (process 6311):
>#0  readConfig (inName=0x0, cfi=cfi@entry=0x60ccc0) at grubby.c:933
>        __s1 = 0x0
>        __result = <error reading variable __result (Cannot access memory at address 0x0)>
>        in = <optimized out>
>        incoming = 0x0
>        head = <optimized out>
>        rc = 0
>        sawEntry = 0
>        movedLine = 0
>        cfg = <optimized out>
>        last = 0x0
>        line = <optimized out>
>        defaultLine = 0x0
>        end = <optimized out>
>        entry = 0x0
>        i = <optimized out>
>        len = <optimized out>
>        buf = <optimized out>
>#1  0x0000000000404232 in main (argc=<optimized out>, argv=<optimized out>) at grubby.c:3741
>        optCon = <optimized out>
>        grubConfig = 0x0
>        outputFile = 0x0
>        arg = <optimized out>
>        flags = 0
>        badImageOkay = 0
>        configureGrub2 = 0
>        configureLilo = 0
>        configureELilo = 0
>        configureGrub = 0
>        configureYaboot = 0
>        configureSilo = 0
>        configureZipl = 0
>        configureExtLinux = 0
>        bootloaderProbe = 0
>        extraInitrdCount = 0
>        updateKernelPath = 0x0
>        newKernelPath = 0x0
>        removeKernelPath = 0x0
>        newKernelArgs = 0x0
>        newKernelInitrd = 0x0
>        newKernelTitle = 0x0
>        newMBKernel = 0x0
>        newMBKernelArgs = 0x0
>        removeMBKernelArgs = 0x0
>        removeMBKernel = 0x0
>        bootPrefix = 0x60e3f0 "/boot"
>        defaultKernel = 0x0
>        removeArgs = 0x0
>        kernelInfo = 0x0
>        extraInitrds = {0x0 <repeats 16 times>}
>
>        chptr = <optimized out>
>        cfi = 0x60ccc0
>        config = <optimized out>
>        template = 0x0
>        copyDefault = 0
>        makeDefault = 0
>        displayDefault = 1
>        displayDefaultIndex = 0
>        displayDefaultTitle = 0
>        options = {{longName = 0x40999d "add-kernel", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd600, val = 0, 
>            descrip = 0x40a1e8 "add an entry for the specified kernel", argDescrip = 0x4099a8 "kernel-path"}, {
>            longName = 0x4099b4 "add-multiboot", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd628, val = 0, 
>            descrip = 0x40a210 "add an entry for the specified multiboot kernel", argDescrip = 0x0}, {longName = 0x409af7 "args", 
>            shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd610, val = 0, 
>            descrip = 0x40a240 "default arguments for the new kernel or new arguments for kernel being updated", 
>            argDescrip = 0x409af7 "args"}, {longName = 0x409b1b "mbargs", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd630, 
>            val = 0, 
>            descrip = 0x40a290 "default arguments for the new multiboot kernel or new arguments for multiboot kernel being updated", 
>            argDescrip = 0x0}, {longName = 0x4099c2 "bad-image-okay", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5ac, val = 0, 
>            descrip = 0x40a2f8 "don't sanity check images in boot entries (for testing only)", argDescrip = 0x0}, {
>            longName = 0x4099d1 "boot-filesystem", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd648, val = 0, 
>            descrip = 0x40a338 "filestystem which contains /boot directory (for testing only)", argDescrip = 0x4099e1 "bootfs"}, {
>            longName = 0x4099e8 "bootloader-probe", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5d0, val = 0, 
>            descrip = 0x40a378 "check if lilo is installed on lilo.conf boot sector", argDescrip = 0x0}, {
>            longName = 0x4099f9 "config-file", shortName = 99 'c', argInfo = 1, arg = 0x7fffffffd5e8, val = 0, 
>            descrip = 0x40a3b0 "path to grub config file to update (\"-\" for stdin)", argDescrip = 0x409aab "path"}, {
>            longName = 0x409a05 "copy-default", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5d4, val = 0, 
>            descrip = 0x40a3e8 "use the default boot entry as a template for the new entry being added; if the default is not a linux image, or if the kernel referenced by the default image does not exist, the first linux entry whos"..., argDescrip = 0x0}, {
>            longName = 0x409a12 "debug", shortName = 0 '\000', argInfo = 0, arg = 0x60ceac, val = 0, 
>            descrip = 0x40a4e0 "print debugging information for failures", argDescrip = 0x0}, {longName = 0x409a18 "default-kernel", 
>            shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5dc, val = 0, descrip = 0x40a510 "display the path of the default kernel", 
>            argDescrip = 0x0}, {longName = 0x409a27 "default-index", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5e0, val = 0, 
>            descrip = 0x40a538 "display the index of the default kernel", argDescrip = 0x0}, {longName = 0x409a35 "default-title", 
>            shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5e4, val = 0, 
>            descrip = 0x40a560 "display the title of the default kernel", argDescrip = 0x0}, {longName = 0x409a43 "elilo", 
>            shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5b8, val = 0, descrip = 0x409a49 "configure elilo bootloader", 
>            argDescrip = 0x0}, {longName = 0x409c84 "extlinux", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5cc, val = 0, 
>            descrip = 0x40a588 "configure extlinux bootloader (from syslinux)", argDescrip = 0x0}, {longName = 0x4098ea "grub", 
>            shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5bc, val = 0, descrip = 0x409a64 "configure grub bootloader", 
>            argDescrip = 0x0}, {longName = 0x409a7e "grub2", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5b0, val = 0, 
>            descrip = 0x409a84 "configure grub2 bootloader", argDescrip = 0x0}, {longName = 0x409a9f "info", shortName = 0 '\000', 
>            argInfo = 1, arg = 0x7fffffffd660, val = 0, descrip = 0x40a5b8 "display boot information for specified kernel", 
>            argDescrip = 0x4099a8 "kernel-path"}, {longName = 0x409ab6 "initrd", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd618, 
>            val = 0, descrip = 0x40a5e8 "initrd image for the new kernel", argDescrip = 0x409aa4 "initrd-path"}, {
>            longName = 0x409ab0 "extra-initrd", shortName = 105 'i', argInfo = 1, arg = 0x0, val = 105, 
>            descrip = 0x40a608 "auxilliary initrd image for things other than the new kernel", argDescrip = 0x409aa4 "initrd-path"}, {
>            longName = 0x409a44 "lilo", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5b4, val = 0, 
>            descrip = 0x409abd "configure lilo bootloader", argDescrip = 0x0}, {longName = 0x409ad7 "make-default", shortName = 0 '\000', 
>            argInfo = 0, arg = 0x7fffffffd5d8, val = 0, descrip = 0x40a648 "make the newly added entry the default boot entry", 
>            argDescrip = 0x0}, {longName = 0x409ae4 "output-file", shortName = 111 'o', argInfo = 1, arg = 0x7fffffffd5f0, val = 0, 
>            descrip = 0x40a680 "path to output updated config file (\"-\" for stdout)", argDescrip = 0x409aab "path"}, {
>            longName = 0x4099e8 "bootloader-probe", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5d0, val = 0, 
>            descrip = 0x40a378 "check if lilo is installed on lilo.conf boot sector", argDescrip = 0x0}, {
>            longName = 0x4099f9 "config-file", shortName = 99 'c', argInfo = 1, arg = 0x7fffffffd5e8, val = 0, 
>            descrip = 0x40a3b0 "path to grub config file to update (\"-\" for stdin)", argDescrip = 0x409aab "path"}, {
>            longName = 0x409a05 "copy-default", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5d4, val = 0, 
>            descrip = 0x40a3e8 "use the default boot entry as a template for the new entry being added; if the default is not a linux image, or if the kernel referenced by the default image does not exist, the first linux entry whos"..., argDescrip = 0x0}, {
>            longName = 0x409a12 "debug", shortName = 0 '\000', argInfo = 0, arg = 0x60ceac, val = 0, 
>            descrip = 0x40a4e0 "print debugging information for failures", argDescrip = 0x0}, {longName = 0x409a18 "default-kernel", 
>            shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5dc, val = 0, descrip = 0x40a510 "display the path of the default kernel", 
>            argDescrip = 0x0}, {longName = 0x409a27 "default-index", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5e0, val = 0, 
>            descrip = 0x40a538 "display the index of the default kernel", argDescrip = 0x0}, {longName = 0x409a35 "default-title", 
>            shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5e4, val = 0, 
>            descrip = 0x40a560 "display the title of the default kernel", argDescrip = 0x0}, {longName = 0x409a43 "elilo", 
>            shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5b8, val = 0, descrip = 0x409a49 "configure elilo bootloader", 
>            argDescrip = 0x0}, {longName = 0x409c84 "extlinux", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5cc, val = 0, 
>            descrip = 0x40a588 "configure extlinux bootloader (from syslinux)", argDescrip = 0x0}, {longName = 0x4098ea "grub", 
>            shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5bc, val = 0, descrip = 0x409a64 "configure grub bootloader", 
>            argDescrip = 0x0}, {longName = 0x409a7e "grub2", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5b0, val = 0, 
>            descrip = 0x409a84 "configure grub2 bootloader", argDescrip = 0x0}, {longName = 0x409a9f "info", shortName = 0 '\000', 
>            argInfo = 1, arg = 0x7fffffffd660, val = 0, descrip = 0x40a5b8 "display boot information for specified kernel", 
>            argDescrip = 0x4099a8 "kernel-path"}, {longName = 0x409ab6 "initrd", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd618, 
>            val = 0, descrip = 0x40a5e8 "initrd image for the new kernel", argDescrip = 0x409aa4 "initrd-path"}, {
>            longName = 0x409ab0 "extra-initrd", shortName = 105 'i', argInfo = 1, arg = 0x0, val = 105, 
>            descrip = 0x40a608 "auxilliary initrd image for things other than the new kernel", argDescrip = 0x409aa4 "initrd-path"}, {
>            longName = 0x409a44 "lilo", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5b4, val = 0, 
>            descrip = 0x409abd "configure lilo bootloader", argDescrip = 0x0}, {longName = 0x409ad7 "make-default", shortName = 0 '\000', 
>            argInfo = 0, arg = 0x7fffffffd5d8, val = 0, descrip = 0x40a648 "make the newly added entry the default boot entry", 
>            argDescrip = 0x0}, {longName = 0x409ae4 "output-file", shortName = 111 'o', argInfo = 1, arg = 0x7fffffffd5f0, val = 0, 
>            descrip = 0x40a680 "path to output updated config file (\"-\" for stdout)", argDescrip = 0x409aab "path"}, {
>---Type <return> to continue, or q <return> to quit---
>            longName = 0x409af0 "remove-args", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd658, val = 0, 
>            descrip = 0x409afc "remove kernel arguments", argDescrip = 0x0}, {longName = 0x409b14 "remove-mbargs", shortName = 0 '\000', 
>            argInfo = 1, arg = 0x7fffffffd638, val = 0, descrip = 0x40a6b8 "remove multiboot kernel arguments", argDescrip = 0x0}, {
>            longName = 0x409b22 "remove-kernel", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd608, val = 0, 
>            descrip = 0x40a6e0 "remove all entries for the specified kernel", argDescrip = 0x4099a8 "kernel-path"}, {
>            longName = 0x409b30 "remove-multiboot", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd640, val = 0, 
>            descrip = 0x40a710 "remove all entries for the specified multiboot kernel", argDescrip = 0x0}, {
>            longName = 0x409b41 "set-default", shortName = 0 '\000', argInfo = 1, arg = 0x7fffffffd650, val = 0, 
>            descrip = 0x40a748 "make the first entry referencing the specified kernel the default", argDescrip = 0x4099a8 "kernel-path"}, {
>            longName = 0x409b4d "silo", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5c4, val = 0, 
>            descrip = 0x409b52 "configure silo bootloader", argDescrip = 0x0}, {longName = 0x409a3d "title", shortName = 0 '\000', 
>            argInfo = 1, arg = 0x7fffffffd620, val = 0, descrip = 0x40a790 "title to use for the new kernel entry", 
>            argDescrip = 0x409b6c "entry-title"}, {longName = 0x409b78 "update-kernel", shortName = 0 '\000', argInfo = 1, 
>            arg = 0x7fffffffd5f8, val = 0, descrip = 0x40a7b8 "updated information for the specified kernel", 
>            argDescrip = 0x4099a8 "kernel-path"}, {longName = 0x409b86 "version", shortName = 118 'v', argInfo = 0, arg = 0x0, val = 118, 
>            descrip = 0x40a7e8 "print the version of this program and exit", argDescrip = 0x0}, {longName = 0x409b8e "yaboot", 
>            shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5c0, val = 0, descrip = 0x409b95 "configure yaboot bootloader", 
>            argDescrip = 0x0}, {longName = 0x409bb1 "zipl", shortName = 0 '\000', argInfo = 0, arg = 0x7fffffffd5c8, val = 0, 
>            descrip = 0x409bb6 "configure zipl bootloader", argDescrip = 0x0}, {longName = 0x0, shortName = 0 '\000', argInfo = 4, 
>            arg = 0x60cde0, val = 0, descrip = 0x409bd0 "Help options:", argDescrip = 0x0}, {longName = 0x0, shortName = 0 '\000', 
>            argInfo = 0, arg = 0x0, val = 0, descrip = 0x0, argDescrip = 0x0}}
>(gdb) continue
>Continuing.
>grubby recieved SIGSEGV!  Backtrace (6):
>/usr/sbin/grubby[0x40525f]
>/lib64/libc.so.6[0x38ffc359e0]
>/usr/sbin/grubby[0x401bc9]
>/usr/sbin/grubby[0x404232]
>/lib64/libc.so.6(__libc_start_main+0xf5)[0x38ffc21735]
>/usr/sbin/grubby[0x404691]
>[Inferior 1 (process 6311) exited with code 01]
>Missing separate debuginfos, use: debuginfo-install libgcc-4.7.0-5.fc17.x86_64
>

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Attachments on bug 823270: 585639