{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23205", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.986Z", "datePublished": "2026-02-14T16:27:28.409Z", "dateUpdated": "2026-02-14T16:27:28.409Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-02-14T16:27:28.409Z"}, "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"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/smb2file.c"], "versions": [{"version": "17e53a15e64b65623b8f2b1185d27d7b1cbf69ab", "lessThan": "743f70406264348c0830f38409eb6c40a42fb2db", "status": "affected", "versionType": "git"}, {"version": "18066188eb90cc0c798f3370a8078a79ddb73f70", "lessThan": "3a6d6b332f92990958602c1e35ce0173e2dd62e9", "status": "affected", "versionType": "git"}, {"version": "6ebb9d54eccc8026b386e76eff69364d33373da5", "lessThan": "b64e3b5d8d759dd4333992e4ba4dadf9359952c8", "status": "affected", "versionType": "git"}, {"version": "e255612b5ed9f179abe8196df7c2ba09dd227900", "lessThan": "9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5", "status": "affected", "versionType": "git"}, {"version": "e255612b5ed9f179abe8196df7c2ba09dd227900", "lessThan": "e3a43633023e3cacaca60d4b8972d084a2b06236", "status": "affected", "versionType": "git"}, {"version": "bcd15f06c7e8904116cfb06526bcc189b86aff85", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/smb2file.c"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.163", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.124", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.70", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.10", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.141", "versionEndExcluding": "6.1.163"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.93", "versionEndExcluding": "6.6.124"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.31", "versionEndExcluding": "6.12.70"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.18.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14.9"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/743f70406264348c0830f38409eb6c40a42fb2db"}, {"url": "https://git.kernel.org/stable/c/3a6d6b332f92990958602c1e35ce0173e2dd62e9"}, {"url": "https://git.kernel.org/stable/c/b64e3b5d8d759dd4333992e4ba4dadf9359952c8"}, {"url": "https://git.kernel.org/stable/c/9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5"}, {"url": "https://git.kernel.org/stable/c/e3a43633023e3cacaca60d4b8972d084a2b06236"}], "title": "smb/client: fix memory leak in smb2_open_file()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "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"}], "id": "CVE-2026-23205", "lastModified": "2026-02-14T17:15:58.403", "metrics": {}, "published": "2026-02-14T17:15:58.403", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3a6d6b332f92990958602c1e35ce0173e2dd62e9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/743f70406264348c0830f38409eb6c40a42fb2db"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b64e3b5d8d759dd4333992e4ba4dadf9359952c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e3a43633023e3cacaca60d4b8972d084a2b06236"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}