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caps: fix illegal access to array bound

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Signed-off-by: 2xsec <dh48.jeong@samsung.com>
This commit is contained in:
2xsec 2018-09-03 15:10:05 +09:00
parent d3aba1db25
commit 22b67bfa96
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GPG Key ID: 0BE2750EE612F372
1 changed files with 2 additions and 4 deletions
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6
src/lxc/caps.c
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@ -296,15 +296,13 @@ static long int _real_caps_last_cap(void)
if (fd >= 0) {
ssize_t n;
char *ptr;
char buf[INTTYPE_TO_STRLEN(int)];
char buf[INTTYPE_TO_STRLEN(int)] = {0};
again:
n = read(fd, buf, sizeof(buf));
n = read(fd, buf, sizeof(buf) - 1);
if (n < 0 && errno == EINTR) {
goto again;
} else if (n >= 0) {
buf[n] = '\0';
errno = 0;
result = strtol(buf, &ptr, 10);
if (!ptr || (*ptr != '\0' && *ptr != '\n') || errno != 0)