[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2025-39817":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T14:53:31.930Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":25,"related":26,"reserved_at":9,"published_at":27,"modified_at":28,"state":9,"summary":29,"references_raw":31,"kevs":38,"epss":9,"epss_history":39,"metrics":40,"affected":47},"DEBIAN-CVE-2025-39817","In the Linux kernel, the following vulnerability has been resolved:  efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare  Observed on kernel 6.6 (present on master as well):    BUG: KASAN: slab-out-of-bounds in memcmp+0x98/0xd0   Call trace:    kasan_check_range+0xe8/0x190    __asan_loadN+0x1c/0x28    memcmp+0x98/0xd0    efivarfs_d_compare+0x68/0xd8    __d_lookup_rcu_op_compare+0x178/0x218    __d_lookup_rcu+0x1f8/0x228    d_alloc_parallel+0x150/0x648    lookup_open.isra.0+0x5f0/0x8d0    open_last_lookups+0x264/0x828    path_openat+0x130/0x3f8    do_filp_open+0x114/0x248    do_sys_openat2+0x340/0x3c0    __arm64_sys_openat+0x120/0x1a0  If dentry->d_name.len \u003C EFI_VARIABLE_GUID_LEN , 'guid' can become negative, leadings to oob. The issue can be triggered by parallel lookups using invalid filename:    T1\t\t\tT2   lookup_open    ->lookup     simple_lookup      d_add      // invalid dentry is added to hash list  \t\t\tlookup_open \t\t\t d_alloc_parallel \t\t\t  __d_lookup_rcu \t\t\t   __d_lookup_rcu_op_compare \t\t\t    hlist_bl_for_each_entry_rcu \t\t\t    // invalid dentry can be retrieved \t\t\t     ->d_compare \t\t\t      efivarfs_d_compare \t\t\t      // oob  Fix it by checking 'guid' before cmp.",null,[],[],[],[14],{"_key":15},"CVE-2025-39817",[17,19,21,23],{"_key":18},"DLA-4327-1",{"_key":20},"DLA-4328-1",{"_key":22},"DSA-6008-1",{"_key":24},"DSA-6009-1",[],[],"2025-09-16T13:15:57.187Z","2026-04-28T20:30:06.134641Z",{"cisa_kev":30,"cisa_ransomware":30,"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,[32],{"url":33,"sources":34,"tags":36},"https://security-tracker.debian.org/tracker/CVE-2025-39817",[35],"osv_debian",[37],"Advisory",[],[],[41],{"source":35,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":42,"cvss_v4_0":9},{"baseScore":43,"baseSeverity":9,"vectorString":44,"impactScore":45,"exploitabilityScore":46},7.1,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",8.7,4.6,[48,69],{"ecosystem":49,"name":50,"vendor":51,"product":50,"cpe_part":9,"purl_type":52,"purl_namespace":51,"purl_name":50,"source":9,"versions":53},"Debian","linux","debian","deb",[54,60,63,66],{"version":55,"is_range":56,"range_type":57,"version_start":9,"version_start_type":9,"version_end":58,"version_end_type":59,"fixed_in":9},"lt5_10_244_1",true,"ecosystem","5.10.244-1","excluding",{"version":61,"is_range":56,"range_type":57,"version_start":9,"version_start_type":9,"version_end":62,"version_end_type":59,"fixed_in":9},"lt6_1_153_1","6.1.153-1",{"version":64,"is_range":56,"range_type":57,"version_start":9,"version_start_type":9,"version_end":65,"version_end_type":59,"fixed_in":9},"lt6_12_48_1","6.12.48-1",{"version":67,"is_range":56,"range_type":57,"version_start":9,"version_start_type":9,"version_end":68,"version_end_type":59,"fixed_in":9},"lt6_16_5_1","6.16.5-1",{"ecosystem":49,"name":70,"vendor":51,"product":70,"cpe_part":9,"purl_type":52,"purl_namespace":51,"purl_name":70,"source":9,"versions":71},"linux-6.1",[72],{"version":73,"is_range":56,"range_type":57,"version_start":9,"version_start_type":9,"version_end":74,"version_end_type":59,"fixed_in":9},"lt6_1_153_1~deb11u1","6.1.153-1~deb11u1"]