{"id":"CVE-2026-53261","summary":"devlink: Release nested relation on devlink free","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndevlink: Release nested relation on devlink free\n\ndevlink relation state is normally released from devl_unregister(), which\ncalls devlink_rel_put(). This misses devlink instances that get a nested\nrelation before registration and then fail probe before devl_register() is\nreached.\n\nThat flow can happen for SFs. The child devlink gets linked to its\nparent before registration, then a later probe error calls devlink_free()\ndirectly. Since the instance was never registered, devl_unregister() is not\ncalled and devlink-\u003erel is leaked.\n\nRelease any pending relation from devlink_free() as well. The registered\npath is unchanged because devl_unregister() already clears devlink-\u003erel\nbefore devlink_free() runs.","modified":"2026-06-27T12:02:21.184502773Z","published":"2026-06-25T08:39:49.891Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53261.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/11324d52b0c63f4f202b35793c6507a575e9a689"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3522b21fd7e1863d0734537737bd59f1b90d0190"},{"type":"WEB","url":"https://git.kernel.org/stable/c/927f96861f939c0b517d13ed27bf4fabbfc1cfb3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a9137286884703113b1c9e6403bd6d7d97b14754"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53261.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53261"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c137743bce02b18c1537d4681aa515f7b80bf0a8"},{"fixed":"a9137286884703113b1c9e6403bd6d7d97b14754"},{"fixed":"927f96861f939c0b517d13ed27bf4fabbfc1cfb3"},{"fixed":"11324d52b0c63f4f202b35793c6507a575e9a689"},{"fixed":"3522b21fd7e1863d0734537737bd59f1b90d0190"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53261.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.94"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.36"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.13"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53261.json"}}],"schema_version":"1.7.5"}