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machine: fix crash on update from older than v258

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UID entry in the machine state file is introduced in v258,
hence when a host is upgraded to v258, the field does not exist in the
file, thus the variable 'uid' is NULL.

Follow-up for 276d200186.
Fixes #39061.
This commit is contained in:
Yu Watanabe
2025-09-22 00:45:14 +09:00
parent 9b89aee4af
commit 43cea09f95
1 changed files with 5 additions and 3 deletions
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8
src/machine/machine.c
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@@ -403,9 +403,11 @@ int machine_load(Machine *m) {
log_warning_errno(r, "Failed to parse AF_VSOCK CID, ignoring: %s", vsock_cid);
}
r = parse_uid(uid, &m->uid);
if (r < 0)
log_warning_errno(r, "Failed to parse owning UID, ignoring: %s", uid);
if (uid) {
r = parse_uid(uid, &m->uid);
if (r < 0)
log_warning_errno(r, "Failed to parse owning UID, ignoring: %s", uid);
}
return r;
}