[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2025-38523":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":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-2025-38523","In the Linux kernel, the following vulnerability has been resolved:  cifs: Fix the smbd_response slab to allow usercopy  The handling of received data in the smbdirect client code involves using copy_to_iter() to copy data from the smbd_reponse struct's packet trailer to a folioq buffer provided by netfslib that encapsulates a chunk of pagecache.  If, however, CONFIG_HARDENED_USERCOPY=y, this will result in the checks then performed in copy_to_iter() oopsing with something like the following:   CIFS: Attempting to mount //172.31.9.1/test  CIFS: VFS: RDMA transport established  usercopy: Kernel memory exposure attempt detected from SLUB object 'smbd_response_0000000091e24ea1' (offset 81, size 63)!  ------------[ cut here ]------------  kernel BUG at mm/usercopy.c:102!  ...  RIP: 0010:usercopy_abort+0x6c/0x80  ...  Call Trace:   \u003CTASK>   __check_heap_object+0xe3/0x120   __check_object_size+0x4dc/0x6d0   smbd_recv+0x77f/0xfe0 [cifs]   cifs_readv_from_socket+0x276/0x8f0 [cifs]   cifs_read_from_socket+0xcd/0x120 [cifs]   cifs_demultiplex_thread+0x7e9/0x2d50 [cifs]   kthread+0x396/0x830   ret_from_fork+0x2b8/0x3b0   ret_from_fork_asm+0x1a/0x30  The problem is that the smbd_response slab's packet field isn't marked as being permitted for usercopy.  Fix this by passing parameters to kmem_slab_create() to indicate that copy_to_iter() is permitted from the packet region of the smbd_response slab objects, less the header space.",null,[],[],[],[14],{"_key":15},"CVE-2025-38523",[],[],[],"2025-08-16T12:15:27.667Z","2026-04-28T20:30:00.140270Z",{"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-2025-38523",[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},5.5,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",6,4.6,[40],{"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",[46,52],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":50,"version_end_type":51,"fixed_in":9},"lt6_12_37_1",true,"ecosystem","6.12.37-1","excluding",{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":50,"version_end_type":51,"fixed_in":9}]