{"cve":{"cve_id":"CVE-2026-52930","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":null,"epss_percentile":null,"epss_as_of":null,"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipc/shm: serialize orphan cleanup with shm_nattch updates\n\nshm_destroy_orphaned() walks the shm idr under shm_ids(ns).rwsem, but that\ndoes not serialize all fields tested by shm_may_destroy().  In particular,\nshm_nattch is updated while holding shm_perm.lock, and attach paths can do\nthat without holding the rwsem.\n\nDo not decide that an orphaned segment is unused before taking the object\nlock.  Move the shm_may_destroy() check under shm_perm.lock, matching the\nother destroy paths, and unlock the segment when it no longer qualifies\nfor removal.","published_at":"2026-06-24T07:14:22.704000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/b1e9aef48e4d8a0c1b54fb913077b0824ed7d650","https://git.kernel.org/stable/c/92cda2593cf2ed25b0e9d78e5e6d8303bba1a064","https://git.kernel.org/stable/c/1f0d01e35dbb228084d5187212e32c91a30dcbeb","https://git.kernel.org/stable/c/6560be3f6a5bb84f006f184f0c966747bb58e1a3","https://git.kernel.org/stable/c/b5107b4ce3ad45fcf369ee2058c8910620f4b5a8","https://git.kernel.org/stable/c/db752ebfdaf2c7f27cd9690ef48b616af068319c","https://git.kernel.org/stable/c/030bbc857bd51d4b25a90d931d3f8775ef22823a","https://git.kernel.org/stable/c/2e5c6f4fd4001562781e99bbfc7f1f0127187542"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-28T17:55:22.518073Z","updated_at":"2026-06-28T23:30:49.088205Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d","version_start_inclusive":true,"version_end":"b1e9aef48e4d8a0c1b54fb913077b0824ed7d650","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d:b1e9aef48e4d8a0c1b54fb913077b0824ed7d650"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d","version_start_inclusive":true,"version_end":"92cda2593cf2ed25b0e9d78e5e6d8303bba1a064","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d:92cda2593cf2ed25b0e9d78e5e6d8303bba1a064"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d","version_start_inclusive":true,"version_end":"1f0d01e35dbb228084d5187212e32c91a30dcbeb","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d:1f0d01e35dbb228084d5187212e32c91a30dcbeb"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d","version_start_inclusive":true,"version_end":"6560be3f6a5bb84f006f184f0c966747bb58e1a3","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d:6560be3f6a5bb84f006f184f0c966747bb58e1a3"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d","version_start_inclusive":true,"version_end":"b5107b4ce3ad45fcf369ee2058c8910620f4b5a8","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d:b5107b4ce3ad45fcf369ee2058c8910620f4b5a8"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d","version_start_inclusive":true,"version_end":"db752ebfdaf2c7f27cd9690ef48b616af068319c","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d:db752ebfdaf2c7f27cd9690ef48b616af068319c"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d","version_start_inclusive":true,"version_end":"030bbc857bd51d4b25a90d931d3f8775ef22823a","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d:030bbc857bd51d4b25a90d931d3f8775ef22823a"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d","version_start_inclusive":true,"version_end":"2e5c6f4fd4001562781e99bbfc7f1f0127187542","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d:2e5c6f4fd4001562781e99bbfc7f1f0127187542"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"3.1","version_start_inclusive":true,"version_end":"3.1","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:3.1:3.1"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"3.1","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:3.1"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.10.259","version_start_inclusive":true,"version_end":"5.10.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.10.259:5.10.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.15.210","version_start_inclusive":true,"version_end":"5.15.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.15.210:5.15.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.1.176","version_start_inclusive":true,"version_end":"6.1.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.1.176:6.1.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.6.143","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.143:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.94","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.94:6.12.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.36","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.36:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.13","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.13:7.0.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.1","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.1:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/b1e9aef48e4d8a0c1b54fb913077b0824ed7d650","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/92cda2593cf2ed25b0e9d78e5e6d8303bba1a064","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1f0d01e35dbb228084d5187212e32c91a30dcbeb","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/6560be3f6a5bb84f006f184f0c966747bb58e1a3","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/b5107b4ce3ad45fcf369ee2058c8910620f4b5a8","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/db752ebfdaf2c7f27cd9690ef48b616af068319c","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/030bbc857bd51d4b25a90d931d3f8775ef22823a","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/2e5c6f4fd4001562781e99bbfc7f1f0127187542","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T07:14:22.704000Z","label":"CVE published","source":null}]}