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nconfig segfaults when help text contains the character '%'. For a quick example, navigate to the kernel compression options and get the help for bzip2. Doing so triggers a call to mvwprintw() with a string containing '%' and no extra arguments to fill in the specifier's value. Fix this case by printing the literal string retrieved from the kconfig. #0 0x00002b52b6b11d83 in vfprintf () from /lib/libc.so.6 #1 0x00002b52b6bad010 in __vsnprintf_chk () from /lib/libc.so.6 #2 0x00002b52b623991b in _nc_printf_string () from /lib/libncursesw.so.5 #3 0x00002b52b6234cff in vwprintw () from /lib/libncursesw.so.5 #4 0x00002b52b6234db9 in mvwprintw () from /lib/libncursesw.so.5 #5 0x00000000004151d8 in fill_window (win=0x21b64c0, text=0x21b62b0 "CONFIG_KERNEL_BZIP2:\n\nIts compression ratio and speed is intermediate.\nDecompression speed is slowest among the three. The kernel\nsize is about 10% smaller with bzip2, in comparison to gzip.\nBzip2 us"...) at scripts/kconfig/nconf.gui.c:229 #6 0x0000000000416335 in show_scroll_win (main_window=0x21a5630, title=0x157fa30 "Bzip2", text=0x21b62b0 "CONFIG_KERNEL_BZIP2:\n\nIts compression ratio and speed is intermediate.\nDecompression speed is slowest among the three. The kernel\nsize is about 10% smaller with bzip2, in comparison to gzip.\nBzip2 us"...) at scripts/kconfig/nconf.gui.c:535 #7 0x00000000004055b2 in show_help (menu=0x157f9d0) at scripts/kconfig/nconf.c:1257 #8 0x0000000000405897 in conf_choice (menu=0x157f130) at scripts/kconfig/nconf.c:1321 #9 0x0000000000405326 in conf (menu=0x157d130) at scripts/kconfig/nconf.c:1208 #10 0x00000000004052e8 in conf (menu=0xb434a0) at scripts/kconfig/nconf.c:1203 #11 0x0000000000406092 in main (ac=2, av=0x7fff96a93c38) Cc: Michal Marek <mmarek@suse.cz> Cc: Nir Tzachar <nir.tzachar@gmail.com> Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz> |
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.. | ||
basic | ||
dtc | ||
genksyms | ||
kconfig | ||
ksymoops | ||
mod | ||
package | ||
rt-tester | ||
selinux | ||
tracing | ||
.gitignore | ||
bin2c.c | ||
bloat-o-meter | ||
bootgraph.pl | ||
checkincludes.pl | ||
checkkconfigsymbols.sh | ||
checkpatch.pl | ||
checkstack.pl | ||
checksyscalls.sh | ||
checkversion.pl | ||
cleanfile | ||
cleanpatch | ||
config | ||
conmakehash.c | ||
decodecode | ||
diffconfig | ||
export_report.pl | ||
extract-ikconfig | ||
gcc-version.sh | ||
gcc-x86_32-has-stack-protector.sh | ||
gcc-x86_64-has-stack-protector.sh | ||
gen_initramfs_list.sh | ||
get_maintainer.pl | ||
gfp-translate | ||
headerdep.pl | ||
headers_check.pl | ||
headers_install.pl | ||
headers.sh | ||
kallsyms.c | ||
Kbuild.include | ||
kernel-doc | ||
Lindent | ||
Makefile | ||
Makefile.build | ||
Makefile.clean | ||
Makefile.fwinst | ||
Makefile.headersinst | ||
Makefile.host | ||
Makefile.lib | ||
Makefile.modbuiltin | ||
Makefile.modinst | ||
Makefile.modpost | ||
makelst | ||
markup_oops.pl | ||
mkcompile_h | ||
mkmakefile | ||
mksysmap | ||
mkuboot.sh | ||
mkversion | ||
module-common.lds | ||
namespace.pl | ||
patch-kernel | ||
pnmtologo.c | ||
profile2linkerlist.pl | ||
recordmcount.pl | ||
setlocalversion | ||
show_delta | ||
tags.sh | ||
unifdef.c | ||
ver_linux |