CVE-2022-50076

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has been resolved:\n\ncifs: Fix memory leak on the deferred close\n\nxfstests on smb21 report kmemleak as below:\n\n unreferenced object 0xffff8881767d6200 (size 64):\n comm \"xfs_io\", pid 1284, jiffies 4294777434 (age 20.789s)\n hex dump (first 32 bytes):\n 80 5a d0 11 81 88 ff ff 78 8a aa 63 81 88 ff ff .Z......x..c....\n 00 71 99 76 81 88 ff ff 00 00 00 00 00 00 00 00 .q.v............\n backtrace:\n [<00000000ad04e6ea>] cifs_close+0x92/0x2c0\n [<0000000028b93c82>] __fput+0xff/0x3f0\n [<00000000d8116851>] task_work_run+0x85/0xc0\n [<0000000027e14f9e>] do_exit+0x5e5/0x1240\n [<00000000fb492b95>] do_group_exit+0x58/0xe0\n [<00000000129a32d9>] __x64_sys_exit_group+0x28/0x30\n [<00000000e3f7d8e9>] do_syscall_64+0x35/0x80\n [<00000000102e8a0b>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nWhen cancel the deferred close work, we should also cleanup the struct\ncifs_deferred_close."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cifs: Se corrige la p\u00e9rdida de memoria en el cierre diferido. xfstests en smb21 informa kmemleak como se muestra a continuaci\u00f3n: objeto sin referencia 0xffff8881767d6200 (tama\u00f1o 64): comm \"xfs_io\", pid 1284, jiffies 4294777434 (edad 20,789 s) volcado hexadecimal (primeros 32 bytes): 80 5a d0 11 81 88 ff ff 78 8a aa 63 81 88 ff ff .Z......x..c.... 00 71 99 76 81 88 ff ff 00 00 00 00 00 00 00 00 .qv........... backtrace: [&lt;00000000ad04e6ea&gt;] cifs_close+0x92/0x2c0 [&lt;0000000028b93c82&gt;] __fput+0xff/0x3f0 [&lt;00000000d8116851&gt;] task_work_run+0x85/0xc0 [&lt;0000000027e14f9e&gt;] do_exit+0x5e5/0x1240 [&lt;00000000fb492b95&gt;] do_group_exit+0x58/0xe0 [&lt;00000000129a32d9&gt;] __x64_sys_exit_group+0x28/0x30 [&lt;00000000e3f7d8e9&gt;] do_syscall_64+0x35/0x80 [&lt;00000000102e8a0b&gt;] entry_SYSCALL_64_after_hwframe+0x46/0xb0 Cuando cancelamos el trabajo de cierre diferido, tambi\u00e9n debemos limpiar la estructura cifs_deferred_close."}], "id": "CVE-2022-50076", "lastModified": "2026-11-05T20:17:22.583", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-50076", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T19:53:59.920129Z", "version": "2.0.3"}}]}, "published": "2025-06-18T11:15:36.513", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/60b6d38add7b9c17d6e5d49ee8e930ea1a5650c5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/860efae127888ae535bc4eda1b7f27642727c69e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ca08d0eac020d48a3141dbec0a3cf64fbdb17cde"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: cifs: Fix memory leak on the deferred close", "id": "2373647", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373647"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncifs: Fix memory leak on the deferred close\nxfstests on smb21 report kmemleak as below:\nunreferenced object 0xffff8881767d6200 (size 64):\ncomm \"xfs_io\", pid 1284, jiffies 4294777434 (age 20.789s)\nhex dump (first 32 bytes):\n80 5a d0 11 81 88 ff ff 78 8a aa 63 81 88 ff ff .Z......x..c....\n00 71 99 76 81 88 ff ff 00 00 00 00 00 00 00 00 .q.v............\nbacktrace:\n[<00000000ad04e6ea>] cifs_close+0x92/0x2c0\n[<0000000028b93c82>] __fput+0xff/0x3f0\n[<00000000d8116851>] task_work_run+0x85/0xc0\n[<0000000027e14f9e>] do_exit+0x5e5/0x1240\n[<00000000fb492b95>] do_group_exit+0x58/0xe0\n[<00000000129a32d9>] __x64_sys_exit_group+0x28/0x30\n[<00000000e3f7d8e9>] do_syscall_64+0x35/0x80\n[<00000000102e8a0b>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\nWhen cancel the deferred close work, we should also cleanup the struct\ncifs_deferred_close."], "name": "CVE-2022-50076", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50076\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50076\nhttps://lore.kernel.org/linux-cve-announce/2025061855-CVE-2022-50076-f930@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-06-23T08:36:33.904002+00:00", "updated": "2025-06-23T08:36:33.904073+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}