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lsm: fix integer comparisons

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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner 2021-09-03 10:01:51 +02:00
parent 7e5a9e11e4
commit 961878dac1
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GPG Key ID: 8EB056D53EECB12D
2 changed files with 4 additions and 5 deletions
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7
src/lxc/lsm/apparmor.c
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@ -406,7 +406,7 @@ static int __apparmor_process_label_open(struct lsm_ops *ops, pid_t pid, int o_f
/* first try the apparmor subdir */
ret = snprintf(path, LXC_LSMATTRLEN, "/proc/%d/attr/apparmor/current", pid);
if (ret < 0 || ret >= LXC_LSMATTRLEN)
if (ret < 0 || (size_t)ret >= LXC_LSMATTRLEN)
return -1;
labelfd = open(path, o_flags);
@ -417,7 +417,7 @@ static int __apparmor_process_label_open(struct lsm_ops *ops, pid_t pid, int o_f
/* fallback to legacy global attr directory */
ret = snprintf(path, LXC_LSMATTRLEN, "/proc/%d/attr/current", pid);
if (ret < 0 || ret >= LXC_LSMATTRLEN)
if (ret < 0 || (size_t)ret >= LXC_LSMATTRLEN)
return -1;
labelfd = open(path, o_flags);
@ -721,13 +721,12 @@ static void append_all_remount_rules(char **profile, size_t *size)
const size_t buf_append_pos = strlen(buf);
const size_t opt_count = ARRAY_SIZE(REMOUNT_OPTIONS);
size_t opt_bits;
must_append_sized(profile, size,
"# allow various ro-bind-*re*mounts\n",
sizeof("# allow various ro-bind-*re*mounts\n")-1);
for (opt_bits = 0; opt_bits != 1 << opt_count; ++opt_bits) {
for (size_t opt_bits = 0; opt_bits != (size_t)1 << opt_count; ++opt_bits) {
size_t at = buf_append_pos;
unsigned bit = 1;
size_t o;

2
src/lxc/lsm/selinux.c
View File

@ -136,7 +136,7 @@ static int selinux_process_label_fd_get(struct lsm_ops *ops, pid_t pid, bool on_
ret = snprintf(path, LXC_LSMATTRLEN, "/proc/%d/attr/exec", pid);
else
ret = snprintf(path, LXC_LSMATTRLEN, "/proc/%d/attr/current", pid);
if (ret < 0 || ret >= LXC_LSMATTRLEN)
if (ret < 0 || (size_t)ret >= LXC_LSMATTRLEN)
return -1;
labelfd = open(path, O_RDWR);