CVE-2026-31714

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31714", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.133Z", "datePublished": "2026-05-01T13:56:09.925Z", "dateUpdated": "2026-06-14T17:44:19.741Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T17:44:19.741Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid memory leak in f2fs_rename()\n\nsyzbot reported a f2fs bug as below:\n\nBUG: memory leak\nunreferenced object 0xffff888127f70830 (size 16):\n comm \"syz.0.23\", pid 6144, jiffies 4294943712\n hex dump (first 16 bytes):\n 3c af 57 72 5b e6 8f ad 6e 8e fd 33 42 39 03 ff <.Wr[...n..3B9..\n backtrace (crc 925f8a80):\n kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]\n slab_post_alloc_hook mm/slub.c:4520 [inline]\n slab_alloc_node mm/slub.c:4844 [inline]\n __do_kmalloc_node mm/slub.c:5237 [inline]\n __kmalloc_noprof+0x3bd/0x560 mm/slub.c:5250\n kmalloc_noprof include/linux/slab.h:954 [inline]\n fscrypt_setup_filename+0x15e/0x3b0 fs/crypto/fname.c:364\n f2fs_setup_filename+0x52/0xb0 fs/f2fs/dir.c:143\n f2fs_rename+0x159/0xca0 fs/f2fs/namei.c:961\n f2fs_rename2+0xd5/0xf20 fs/f2fs/namei.c:1308\n vfs_rename+0x7ff/0x1250 fs/namei.c:6026\n filename_renameat2+0x4f4/0x660 fs/namei.c:6144\n __do_sys_renameat2 fs/namei.c:6173 [inline]\n __se_sys_renameat2 fs/namei.c:6168 [inline]\n __x64_sys_renameat2+0x59/0x80 fs/namei.c:6168\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nThe root cause is in commit 40b2d55e0452 (\"f2fs: fix to create selinux\nlabel during whiteout initialization\"), we added a call to\nf2fs_setup_filename() without a matching call to f2fs_free_filename(),\nfix it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/f2fs/namei.c"], "versions": [{"version": "7525dec4b34c80b3015c3f2ac143fd2bfc1febc3", "lessThan": "a76c1cad4e80a9802ef8048662255417e3ce5b79", "status": "affected", "versionType": "git"}, {"version": "40b2d55e045222dd6de2a54a299f682e0f954b03", "lessThan": "c78206dcb912ab60b8ee3cbe8c48d749a9a12e1e", "status": "affected", "versionType": "git"}, {"version": "40b2d55e045222dd6de2a54a299f682e0f954b03", "lessThan": "047c0aef6af37a2a35181aa085c616ad286386f1", "status": "affected", "versionType": "git"}, {"version": "40b2d55e045222dd6de2a54a299f682e0f954b03", "lessThan": "369eb2016d8e2f01931b3bad1cb9cefa83f44003", "status": "affected", "versionType": "git"}, {"version": "40b2d55e045222dd6de2a54a299f682e0f954b03", "lessThan": 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{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/f2fs/namei.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a76c1cad4e80a9802ef8048662255417e3ce5b79", "status": "affected", "version": "7525dec4b34c80b3015c3f2ac143fd2bfc1febc3", "versionType": "git"}, {"lessThan": "c78206dcb912ab60b8ee3cbe8c48d749a9a12e1e", "status": "affected", "version": "40b2d55e045222dd6de2a54a299f682e0f954b03", "versionType": "git"}, {"lessThan": "047c0aef6af37a2a35181aa085c616ad286386f1", "status": "affected", "version": "40b2d55e045222dd6de2a54a299f682e0f954b03", "versionType": "git"}, {"lessThan": "369eb2016d8e2f01931b3bad1cb9cefa83f44003", "status": "affected", "version": "40b2d55e045222dd6de2a54a299f682e0f954b03", "versionType": "git"}, {"lessThan": "3cf11e6f36c170050c12171dd6fd3142711478fc", "status": "affected", "version": "40b2d55e045222dd6de2a54a299f682e0f954b03", "versionType": "git"}, {"status": "affected", "version": "1d1b89c9846e6a550eca3d2ce9323fb591e4f321", "versionType": "git"}, {"status": "affected", "version": "64582cc5357cd984724cfb0835b4a34d9c279d31", "versionType": "git"}, {"lessThan": "6.6.136", "status": "affected", "version": "6.6.23", "versionType": "semver"}, {"lessThan": "6.8", "status": "affected", "version": "6.7.11", "versionType": "semver"}, {"lessThan": "6.9", "status": "affected", "version": "6.8.2", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/f2fs/namei.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.136", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.84", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.25", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "99A74472-B9EF-4BEF-A3D3-C4A49B46D936", "versionEndExcluding": "6.6.136", "versionStartIncluding": "6.6.23", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CD8383BB-B294-4F4D-996D-A780685E6362", "versionEndExcluding": "6.8", "versionStartIncluding": "6.7.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E9076253-5796-4E04-9AB4-42087B5524F4", "versionEndExcluding": "6.9", "versionStartIncluding": "6.8.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E8C01EA7-003E-4236-9C2D-0C2322FB0CE3", "versionEndExcluding": "6.12.84", "versionStartIncluding": "6.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8B0A7E0E-F6D8-45DB-8CD9-01839FE40A6C", "versionEndExcluding": "6.18.25", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1BD58F1E-7C20-4C0D-92A2-FAC5CBFBE8A8", "versionEndExcluding": "7.0.2", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid memory leak in f2fs_rename()\n\nsyzbot reported a f2fs bug as below:\n\nBUG: memory leak\nunreferenced object 0xffff888127f70830 (size 16):\n comm \"syz.0.23\", pid 6144, jiffies 4294943712\n hex dump (first 16 bytes):\n 3c af 57 72 5b e6 8f ad 6e 8e fd 33 42 39 03 ff <.Wr[...n..3B9..\n backtrace (crc 925f8a80):\n kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]\n slab_post_alloc_hook mm/slub.c:4520 [inline]\n slab_alloc_node mm/slub.c:4844 [inline]\n __do_kmalloc_node mm/slub.c:5237 [inline]\n __kmalloc_noprof+0x3bd/0x560 mm/slub.c:5250\n kmalloc_noprof include/linux/slab.h:954 [inline]\n fscrypt_setup_filename+0x15e/0x3b0 fs/crypto/fname.c:364\n f2fs_setup_filename+0x52/0xb0 fs/f2fs/dir.c:143\n f2fs_rename+0x159/0xca0 fs/f2fs/namei.c:961\n f2fs_rename2+0xd5/0xf20 fs/f2fs/namei.c:1308\n vfs_rename+0x7ff/0x1250 fs/namei.c:6026\n filename_renameat2+0x4f4/0x660 fs/namei.c:6144\n __do_sys_renameat2 fs/namei.c:6173 [inline]\n __se_sys_renameat2 fs/namei.c:6168 [inline]\n __x64_sys_renameat2+0x59/0x80 fs/namei.c:6168\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nThe root cause is in commit 40b2d55e0452 (\"f2fs: fix to create selinux\nlabel during whiteout initialization\"), we added a call to\nf2fs_setup_filename() without a matching call to f2fs_free_filename(),\nfix it."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nf2fs: correcci\u00f3n para evitar una fuga de memoria en f2fs_rename()\n\nsyzbot inform\u00f3 un error de f2fs como se detalla a continuaci\u00f3n:\n\nERROR: fuga de memoria\nobjeto sin referencia 0x ffff888127f70830 (tama\u00f1o 16):\n comm \u2019syz.0.23\u2019, pid 6144, jiffies 4294943712\n volcado hexadecimal (primeros 16 bytes):\n 3c af 57 72 5b e6 8f ad 6e 8e fd 33 42 39 03 ff <.Wr[...n..3B9..\n rastreo (crc 925f8a80):\n kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]\n slab_post_alloc_hook mm/slub.c:4520 [inline]\n slab_alloc_node mm/slub.c:4844 [inline]\n __do_kmalloc_node mm/slub.c:5237 [inline]\n __kmalloc_noprof+0x3bd/0x560 mm/slub.c:5250\n kmalloc_noprof include/linux/slab.h:954 [inline]\n fscrypt_setup_filename+0x15e/0x3b0 fs/crypto/fname.c:364\n f2fs_setup_filename+0x52/0xb0 fs/f2fs/dir.c:143\n f2fs_rename+0x159/0xca0 fs/f2fs/namei.c:961\n f2fs_rename2+0xd5/0xf20 fs/f2fs/namei.c:1308\n vfs_rename+0x7ff/0x 1250 fs/namei.c:6026\n filename_renameat2+0x4f4/0x660 fs/namei.c:6144\n __do_sys_renameat2 fs/namei.c:6173 [inline]\n __se_sys_renameat2 fs/namei.c:6168 [inline]\n __x64_sys_renameat2+0x59/0x80 fs/namei.c:6168\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nLa causa ra\u00edz se encuentra en el commit 40b2d55e0452 (\u2019f2fs: correcci\u00f3n para crear etiqueta selinux durante la inicializaci\u00f3n de whiteout\u2019), a\u00f1adimos una llamada a f2fs_setup_filename() sin una llamada correspondiente a f2fs_free_filename(), corregirlo."}], "id": "CVE-2026-31714", "lastModified": "2026-11-11T21:10:00.200", "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"}]}, "published": "2026-05-01T14:16:21.493", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/047c0aef6af37a2a35181aa085c616ad286386f1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/369eb2016d8e2f01931b3bad1cb9cefa83f44003"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3cf11e6f36c170050c12171dd6fd3142711478fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a76c1cad4e80a9802ef8048662255417e3ce5b79"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c78206dcb912ab60b8ee3cbe8c48d749a9a12e1e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: f2fs: fix to avoid memory leak in f2fs_rename()", "id": "2464386", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464386"}, "csaw": false, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's F2FS (Flash-Friendly File System) component. This vulnerability, a memory leak, occurs within the `f2fs_rename` function. A local attacker could exploit this by repeatedly performing file rename operations, leading to a gradual consumption of system memory. Over time, this could result in system instability or a denial of service (DoS) condition."], "name": "CVE-2026-31714", "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": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31714\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31714\nhttps://lore.kernel.org/linux-cve-announce/2026050123-CVE-2026-31714-88ae@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7525dec4b34c80b3015c3f2ac143fd2bfc1febc3,a76c1cad4e80a9802ef8048662255417e3ce5b79)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[40b2d55e045222dd6de2a54a299f682e0f954b03,c78206dcb912ab60b8ee3cbe8c48d749a9a12e1e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[40b2d55e045222dd6de2a54a299f682e0f954b03,047c0aef6af37a2a35181aa085c616ad286386f1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[40b2d55e045222dd6de2a54a299f682e0f954b03,369eb2016d8e2f01931b3bad1cb9cefa83f44003)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[40b2d55e045222dd6de2a54a299f682e0f954b03,3cf11e6f36c170050c12171dd6fd3142711478fc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "1d1b89c9846e6a550eca3d2ce9323fb591e4f321"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "64582cc5357cd984724cfb0835b4a34d9c279d31"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.136,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.84,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.25,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.2,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-01T21:30:14.955458+00:00", "updated": "2026-05-06T22:45:13.829949+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}