CVE-2026-23205

{"id": "CVE-2026-23205", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2026-02-14T17:15:58.403", "references": [{"url": "https://git.kernel.org/stable/c/3a6d6b332f92990958602c1e35ce0173e2dd62e9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/743f70406264348c0830f38409eb6c40a42fb2db", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b64e3b5d8d759dd4333992e4ba4dadf9359952c8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e3a43633023e3cacaca60d4b8972d084a2b06236", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: fix memory leak in smb2_open_file()\n\nReproducer:\n\n 1. server: directories are exported read-only\n 2. client: mount -t cifs //${server_ip}/export /mnt\n 3. client: dd if=/dev/zero of=/mnt/file bs=512 count=1000 oflag=direct\n 4. client: umount /mnt\n 5. client: sleep 1\n 6. client: modprobe -r cifs\n\nThe error message is as follows:\n\n =============================================================================\n BUG cifs_small_rq (Not tainted): Objects remaining on __kmem_cache_shutdown()\n -----------------------------------------------------------------------------\n\n Object 0x00000000d47521be @offset=14336\n ...\n WARNING: mm/slub.c:1251 at __kmem_cache_shutdown+0x34e/0x440, CPU#0: modprobe/1577\n ...\n Call Trace:\n <TASK>\n kmem_cache_destroy+0x94/0x190\n cifs_destroy_request_bufs+0x3e/0x50 [cifs]\n cleanup_module+0x4e/0x540 [cifs]\n __se_sys_delete_module+0x278/0x400\n __x64_sys_delete_module+0x5f/0x70\n x64_sys_call+0x2299/0x2ff0\n do_syscall_64+0x89/0x350\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n ...\n kmem_cache_destroy cifs_small_rq: Slab cache still has objects when called from cifs_destroy_request_bufs+0x3e/0x50 [cifs]\n WARNING: mm/slab_common.c:532 at kmem_cache_destroy+0x16b/0x190, CPU#0: modprobe/1577"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nsmb/cliente: corrige una fuga de memoria en smb2_open_file()\n\nReproductor:\n\n 1. servidor: los directorios se exportan de solo lectura\n 2. cliente: mount -t cifs //${server_ip}/export /mnt\n 3. cliente: dd if=/dev/zero of=/mnt/file bs=512 count=1000 oflag=direct\n 4. cliente: umount /mnt\n 5. cliente: sleep 1\n 6. cliente: modprobe -r cifs\n\nEl mensaje de error es el siguiente:\n\n =============================================================================\n BUG cifs_small_rq (No contaminado): Objetos restantes en __kmem_cache_shutdown()\n -----------------------------------------------------------------------------\n\n Object 0x00000000d47521be @offset=14336\n ...\n ADVERTENCIA: mm/slub.c:1251 en __kmem_cache_shutdown+0x34e/0x440, CPU#0: modprobe/1577\n ...\n Traza de Llamada:\n \n kmem_cache_destroy+0x94/0x190\n cifs_destroy_request_bufs+0x3e/0x50 [cifs]\n cleanup_module+0x4e/0x540 [cifs]\n __se_sys_delete_module+0x278/0x400\n __x64_sys_delete_module+0x5f/0x70\n x64_sys_call+0x2299/0x2ff0\n do_syscall_64+0x89/0x350\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n ...\n kmem_cache_destroy cifs_small_rq: La cach\u00e9 de slab a\u00fan tiene objetos cuando se llama desde cifs_destroy_request_bufs+0x3e/0x50 [cifs]\n ADVERTENCIA: mm/slab_common.c:532 en kmem_cache_destroy+0x16b/0x190, CPU#0: modprobe/1577"}], "lastModified": "2026-03-18T17:10:59.223", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "00623C11-0443-4B37-8CA8-ED9E2C277A00", "versionEndExcluding": "6.1.163", "versionStartIncluding": "6.1.141"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "256DA482-7687-4432-B13E-8503C2B68F90", "versionEndExcluding": "6.6.124", "versionStartIncluding": "6.6.93"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "046F65ED-1039-4099-926A-7D989329B28C", "versionEndExcluding": "6.12.70", "versionStartIncluding": "6.12.31"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A420E6FD-A5EF-4EB6-991E-DA6CB5C3316F", "versionEndExcluding": "6.18.10", "versionStartIncluding": "6.14.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EB5B7DFC-C36B-45D8-922C-877569FDDF43"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}