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bash
bash-4.2-nscdunmap.dif
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File bash-4.2-nscdunmap.dif of Package bash
--- shell.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) --- shell.c +++ shell.c 2018-09-20 08:08:34.242204532 +0000 @@ -43,6 +43,8 @@ #endif #if defined (HAVE_UNISTD_H) +# include <sys/mman.h> +# include <sys/types.h> # include <unistd.h> #endif @@ -1888,6 +1894,28 @@ init_interactive_script () #endif } +static void +maybe_unmap_nscd (void) +{ + unsigned long start, end, off; + char path[PATH_MAX]; + FILE *maps; + + if (getppid() != 1) + return; + if ((maps = fopen("/proc/self/maps", "r")) == NULL) + return; + + while (fscanf(maps, "%lx-%lx %*s %lx %*x:%*x %*lu %s", &start, &end, &off, &path[0]) == 4) + { + if (strncmp(path, "/var/run/nscd/", 14) != 0) + continue; + munmap((void*)start, end - start); + } + + fclose(maps); +} + void get_current_user_info () { @@ -1919,6 +1946,7 @@ get_current_user_info () #if defined (HAVE_GETPWENT) endpwent (); #endif + maybe_unmap_nscd (); } }
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