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| author | Thomas Weißschuh <thomas@t-8ch.de> | 2022-05-06 01:06:08 +0200 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2022-05-06 06:48:51 +0200 |
| commit | 15d4c239f45c59b77e50701f43443eb33601a5e8 (patch) | |
| tree | 0b7d7a63c5869e50fa24c7f682057764aee5ba35 /src/userdb | |
| parent | Merge pull request #23277 from keszybz/news-and-hwdb-update (diff) | |
| download | systemd-15d4c239f45c59b77e50701f43443eb33601a5e8.tar.xz systemd-15d4c239f45c59b77e50701f43443eb33601a5e8.zip | |
userdbctl: initialize parameter `n` for uid_range_load_userns()
uid_range_load_userns() dereferences the n parameter.
Passing unitialized memory may lead to crashes, for example with version
251rc2-1 on ArchLinux.
Diffstat (limited to 'src/userdb')
| -rw-r--r-- | src/userdb/userdbctl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/userdb/userdbctl.c b/src/userdb/userdbctl.c index b299bb8e11..9effb3c61e 100644 --- a/src/userdb/userdbctl.c +++ b/src/userdb/userdbctl.c @@ -431,7 +431,7 @@ static int display_user(int argc, char *argv[], void *userdata) { if (table) { _cleanup_free_ UidRange *uid_range = NULL; int boundary_lines, uid_map_lines; - size_t n_uid_range; + size_t n_uid_range = 0; r = uid_range_load_userns(&uid_range, &n_uid_range, "/proc/self/uid_map"); if (r < 0) @@ -740,7 +740,7 @@ static int display_group(int argc, char *argv[], void *userdata) { if (table) { _cleanup_free_ UidRange *gid_range = NULL; int boundary_lines, gid_map_lines; - size_t n_gid_range; + size_t n_gid_range = 0; r = uid_range_load_userns(&gid_range, &n_gid_range, "/proc/self/gid_map"); if (r < 0) |