[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2026-31787":6},{"stargazers_count":4,"fetched_at":5},7,"2026-07-31T03:17:55.401Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":39},"DEBIAN-CVE-2026-31787","In the Linux kernel, the following vulnerability has been resolved:  xen/privcmd: fix double free via VMA splitting  privcmd_vm_ops defines .close (privcmd_close), but neither .may_split nor .open. When userspace does a partial munmap() on a privcmd mapping, the kernel splits the VMA via __split_vma(). Since may_split is NULL, the split is allowed. vm_area_dup() copies vm_private_data (a pages array allocated in alloc_empty_pages()) into the new VMA without any fixup, because there is no .open callback.  Both VMAs now point to the same pages array. When the unmapped portion is closed, privcmd_close() calls:     - xen_unmap_domain_gfn_range()     - xen_free_unpopulated_pages()     - kvfree(pages)  The surviving VMA still holds the dangling pointer. When it is later destroyed, the same sequence runs again, which leads to a double free.  Fix this issue by adding a .may_split callback denying the VMA split.  This is XSA-487 / CVE-2026-31787",null,[],[],[],[14],{"_key":15},"CVE-2026-31787",[],[],[],"2026-04-30T11:16:21.087Z","2026-06-15T09:00:25.788722068Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2026-31787",[27],"osv_debian",[29],"Advisory",[],[],[33],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":34,"cvss_v4_0":9},{"baseScore":35,"baseSeverity":9,"vectorString":36,"impactScore":37,"exploitabilityScore":38},7.8,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",9.8,4.6,[40,66],{"ecosystem":41,"name":42,"vendor":43,"product":42,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":42,"source":9,"versions":45},"Debian","linux","debian","deb",[46,50,51,52,53,57,60,63],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":54,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":55,"version_end_type":56,"fixed_in":9},"lt5_10_257_1","5.10.257-1","excluding",{"version":58,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":59,"version_end_type":56,"fixed_in":9},"lt6_1_170_1","6.1.170-1",{"version":61,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":62,"version_end_type":56,"fixed_in":9},"lt6_12_85_1","6.12.85-1",{"version":64,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":65,"version_end_type":56,"fixed_in":9},"lt7_0_3_1","7.0.3-1",{"ecosystem":41,"name":67,"vendor":43,"product":67,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":67,"source":9,"versions":68},"linux-6.1",[69],{"version":70,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":71,"version_end_type":56,"fixed_in":9},"lt6_1_170_1~deb11u1","6.1.170-1~deb11u1"]