{"id":"AZL-69653","summary":"CVE-2025-23131 affecting package kernel 5.15.200.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndlm: prevent NPD when writing a positive value to event_done\n\ndo_uevent returns the value written to event_done. In case it is a\npositive value, new_lockspace would undo all the work, and lockspace\nwould not be set. __dlm_new_lockspace, however, would treat that\npositive value as a success due to commit 8511a2728ab8 (\"dlm: fix use\ncount with multiple joins\").\n\nDown the line, device_create_lockspace would pass that NULL lockspace to\ndlm_find_lockspace_local, leading to a NULL pointer dereference.\n\nTreating such positive values as successes prevents the problem. Given\nthis has been broken for so long, this is unlikely to break userspace\nexpectations.","modified":"2026-04-01T05:20:44.346521Z","published":"2025-04-16T15:16:07Z","upstream":["CVE-2025-23131"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-23131"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.15.200.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-69653.json"}}],"schema_version":"1.7.5"}