CVE-2025-40362

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-40362", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.187Z", "datePublished": "2025-12-16T13:40:02.467Z", "dateUpdated": "2026-10-15T22:02:46.619Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:09:54.515Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix multifs mds auth caps issue\n\nThe mds auth caps check should also validate the\nfsname along with the associated caps. Not doing\nso would result in applying the mds auth caps of\none fs on to the other fs in a multifs ceph cluster.\nThe bug causes multiple issues w.r.t user\nauthentication, following is one such example.\n\nSteps to Reproduce (on vstart cluster):\n1. Create two file systems in a cluster, say 'fsname1' and 'fsname2'\n2. Authorize read only permission to the user 'client.usr' on fs 'fsname1'\n $ceph fs authorize fsname1 client.usr / r\n3. Authorize read and write permission to the same user 'client.usr' on fs 'fsname2'\n $ceph fs authorize fsname2 client.usr / rw\n4. Update the keyring\n $ceph auth get client.usr >> ./keyring\n\nWith above permssions for the user 'client.usr', following is the\nexpectation.\n a. The 'client.usr' should be able to only read the contents\n and not allowed to create or delete files on file system 'fsname1'.\n b. The 'client.usr' should be able to read/write on file system 'fsname2'.\n\nBut, with this bug, the 'client.usr' is allowed to read/write on file\nsystem 'fsname1'. See below.\n\n5. Mount the file system 'fsname1' with the user 'client.usr'\n $sudo bin/mount.ceph usr@.fsname1=/ /kmnt_fsname1_usr/\n6. Try creating a file on file system 'fsname1' with user 'client.usr'. This\n should fail but passes with this bug.\n $touch /kmnt_fsname1_usr/file1\n7. Mount the file system 'fsname1' with the user 'client.admin' and create a\n file.\n $sudo bin/mount.ceph admin@.fsname1=/ /kmnt_fsname1_admin\n $echo \"data\" > /kmnt_fsname1_admin/admin_file1\n8. Try removing an existing file on file system 'fsname1' with the user\n 'client.usr'. This shoudn't succeed but succeeds with the bug.\n $rm -f /kmnt_fsname1_usr/admin_file1\n\nFor more information, please take a look at the corresponding mds/fuse patch\nand tests added by looking into the tracker mentioned below.\n\nv2: Fix a possible null dereference in doutc\nv3: Don't store fsname from mdsmap, validate against\n ceph_mount_options's fsname and use it\nv4: Code refactor, better warning message and\n fix possible compiler warning\n\n[ Slava.Dubeyko: \"fsname check failed\" -> \"fsname mismatch\" ]"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The broken check is reached through ordinary local syscalls (`open`, `openat(O_CREAT)`, `unlink`, `rmdir`, `setattr`) on an already-mounted CephFS; the attacker acts on the client host, not over the wire.\nAC:L - No race, no memory-layout dependency \u2014 the attacker simply performs the file operation and the mismatched cap entry is applied deterministically; the multi-filesystem/`ceph fs authorize` configuration is a standard supported multi-tenant CephFS deployment.\nPR:L - Any unprivileged local user with access to the CephFS mount can trigger it; no capability, no user-namespace trick, and no cluster-side privilege is needed because the mount's cephx key is shared by all local users.\nUI:N - Exploitation requires no action by any other user or administrator beyond the mount already existing; the attacker's own file operations are sufficient.\nS:C - The kernel client enforces the Ceph cluster's cephx MDS auth policy on the cluster's behalf (the MDS delegates async-dirop authorization to it via CEPHFS_FEATURE_MDS_AUTH_CAPS_CHECK), so the bypass grants access to data in a different filesystem/tenant governed by the Ceph cluster's separate security authority.\nC:H - A cap entry belonging to another filesystem (e.g. `allow rw fsname=fs2 path=/`) is applied to the mounted filesystem, defeating `path=` and uid/gid read restrictions and exposing the contents of files the key was never authorized to read.\nI:H - The commit's reproducer shows a read-only-authorized user creating files and deleting an admin-written file on the restricted filesystem; root_squash and writeable=false restrictions are both defeated, giving unauthorized write over the tree.\nA:H - The same bypass permits unlink/rmdir and overwrite of other tenants' data on shared cluster storage, destroying data that legitimate users depend on."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ceph/mds_client.c", "fs/ceph/mdsmap.c", "fs/ceph/super.c", "fs/ceph/super.h"], "versions": [{"version": "596afb0b8933ba6ed7227adcc538db26feb25c74", "lessThan": "07640d34a781bb2e39020a39137073c03c4aa932", "status": "affected", "versionType": "git"}, {"version": "596afb0b8933ba6ed7227adcc538db26feb25c74", "lessThan": "ca3da8b27ab9a0923ad477447cfb8fc7f4b4c523", "status": "affected", "versionType": "git"}, {"version": "596afb0b8933ba6ed7227adcc538db26feb25c74", "lessThan": "22c73d52a6d05c5a2053385c0d6cd9984732799d", "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/ceph/mds_client.c", "fs/ceph/mdsmap.c", "fs/ceph/super.c", "fs/ceph/super.h"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.58", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.8", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18", "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": "6.10", "versionEndExcluding": "6.12.58"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.17.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/07640d34a781bb2e39020a39137073c03c4aa932"}, {"url": "https://git.kernel.org/stable/c/ca3da8b27ab9a0923ad477447cfb8fc7f4b4c523"}, {"url": "https://git.kernel.org/stable/c/22c73d52a6d05c5a2053385c0d6cd9984732799d"}], "title": "ceph: fix multifs mds auth caps issue", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-40362", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:59:40.317622Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T22:02:46.619Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-40362", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:59:40.317622Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T21:59:41.303Z"}}], "cna": {"title": "ceph: fix multifs mds auth caps issue", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The broken check is reached through ordinary local syscalls (`open`, `openat(O_CREAT)`, `unlink`, `rmdir`, `setattr`) on an already-mounted CephFS; the attacker acts on the client host, not over the wire.\nAC:L - No race, no memory-layout dependency \u2014 the attacker simply performs the file operation and the mismatched cap entry is applied deterministically; the multi-filesystem/`ceph fs authorize` configuration is a standard supported multi-tenant CephFS deployment.\nPR:L - Any unprivileged local user with access to the CephFS mount can trigger it; no capability, no user-namespace trick, and no cluster-side privilege is needed because the mount's cephx key is shared by all local users.\nUI:N - Exploitation requires no action by any other user or administrator beyond the mount already existing; the attacker's own file operations are sufficient.\nS:C - The kernel client enforces the Ceph cluster's cephx MDS auth policy on the cluster's behalf (the MDS delegates async-dirop authorization to it via CEPHFS_FEATURE_MDS_AUTH_CAPS_CHECK), so the bypass grants access to data in a different filesystem/tenant governed by the Ceph cluster's separate security authority.\nC:H - A cap entry belonging to another filesystem (e.g. `allow rw fsname=fs2 path=/`) is applied to the mounted filesystem, defeating `path=` and uid/gid read restrictions and exposing the contents of files the key was never authorized to read.\nI:H - The commit's reproducer shows a read-only-authorized user creating files and deleting an admin-written file on the restricted filesystem; root_squash and writeable=false restrictions are both defeated, giving unauthorized write over the tree.\nA:H - The same bypass permits unlink/rmdir and overwrite of other tenants' data on shared cluster storage, destroying data that legitimate users depend on."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "596afb0b8933ba6ed7227adcc538db26feb25c74", "lessThan": "07640d34a781bb2e39020a39137073c03c4aa932", "versionType": "git"}, {"status": "affected", "version": "596afb0b8933ba6ed7227adcc538db26feb25c74", "lessThan": "ca3da8b27ab9a0923ad477447cfb8fc7f4b4c523", "versionType": "git"}, {"status": "affected", "version": "596afb0b8933ba6ed7227adcc538db26feb25c74", "lessThan": "22c73d52a6d05c5a2053385c0d6cd9984732799d", "versionType": "git"}], "programFiles": ["fs/ceph/mds_client.c", "fs/ceph/mdsmap.c", "fs/ceph/super.c", "fs/ceph/super.h"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"status": "unaffected", "version": "0", "lessThan": "6.10", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.58", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.17.8", "versionType": "semver", "lessThanOrEqual": "6.17.*"}, {"status": "unaffected", "version": "6.18", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/ceph/mds_client.c", "fs/ceph/mdsmap.c", "fs/ceph/super.c", "fs/ceph/super.h"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/07640d34a781bb2e39020a39137073c03c4aa932"}, {"url": "https://git.kernel.org/stable/c/ca3da8b27ab9a0923ad477447cfb8fc7f4b4c523"}, {"url": "https://git.kernel.org/stable/c/22c73d52a6d05c5a2053385c0d6cd9984732799d"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix multifs mds auth caps issue\n\nThe mds auth caps check should also validate the\nfsname along with the associated caps. Not doing\nso would result in applying the mds auth caps of\none fs on to the other fs in a multifs ceph cluster.\nThe bug causes multiple issues w.r.t user\nauthentication, following is one such example.\n\nSteps to Reproduce (on vstart cluster):\n1. Create two file systems in a cluster, say 'fsname1' and 'fsname2'\n2. Authorize read only permission to the user 'client.usr' on fs 'fsname1'\n $ceph fs authorize fsname1 client.usr / r\n3. Authorize read and write permission to the same user 'client.usr' on fs 'fsname2'\n $ceph fs authorize fsname2 client.usr / rw\n4. Update the keyring\n $ceph auth get client.usr >> ./keyring\n\nWith above permssions for the user 'client.usr', following is the\nexpectation.\n a. The 'client.usr' should be able to only read the contents\n and not allowed to create or delete files on file system 'fsname1'.\n b. The 'client.usr' should be able to read/write on file system 'fsname2'.\n\nBut, with this bug, the 'client.usr' is allowed to read/write on file\nsystem 'fsname1'. See below.\n\n5. Mount the file system 'fsname1' with the user 'client.usr'\n $sudo bin/mount.ceph usr@.fsname1=/ /kmnt_fsname1_usr/\n6. Try creating a file on file system 'fsname1' with user 'client.usr'. This\n should fail but passes with this bug.\n $touch /kmnt_fsname1_usr/file1\n7. Mount the file system 'fsname1' with the user 'client.admin' and create a\n file.\n $sudo bin/mount.ceph admin@.fsname1=/ /kmnt_fsname1_admin\n $echo \"data\" > /kmnt_fsname1_admin/admin_file1\n8. Try removing an existing file on file system 'fsname1' with the user\n 'client.usr'. This shoudn't succeed but succeeds with the bug.\n $rm -f /kmnt_fsname1_usr/admin_file1\n\nFor more information, please take a look at the corresponding mds/fuse patch\nand tests added by looking into the tracker mentioned below.\n\nv2: Fix a possible null dereference in doutc\nv3: Don't store fsname from mdsmap, validate against\n ceph_mount_options's fsname and use it\nv4: Code refactor, better warning message and\n fix possible compiler warning\n\n[ Slava.Dubeyko: \"fsname check failed\" -> \"fsname mismatch\" ]"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.58", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.17.8", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18", "versionStartIncluding": "6.10"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:09:54.515Z"}}}, "cveMetadata": {"cveId": "CVE-2025-40362", "state": "PUBLISHED", "dateUpdated": "2026-10-15T22:02:46.619Z", "dateReserved": "2025-04-16T07:20:57.187Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-12-16T13:40:02.467Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/ceph/mds_client.c", "fs/ceph/mdsmap.c", "fs/ceph/super.c", "fs/ceph/super.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "07640d34a781bb2e39020a39137073c03c4aa932", "status": "affected", "version": "596afb0b8933ba6ed7227adcc538db26feb25c74", "versionType": "git"}, {"lessThan": "ca3da8b27ab9a0923ad477447cfb8fc7f4b4c523", "status": "affected", "version": "596afb0b8933ba6ed7227adcc538db26feb25c74", "versionType": "git"}, {"lessThan": "22c73d52a6d05c5a2053385c0d6cd9984732799d", "status": "affected", "version": "596afb0b8933ba6ed7227adcc538db26feb25c74", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/ceph/mds_client.c", "fs/ceph/mdsmap.c", "fs/ceph/super.c", "fs/ceph/super.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"lessThan": "6.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.58", "versionType": "semver"}, {"lessThanOrEqual": "6.17.*", "status": "unaffected", "version": "6.17.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.18", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix multifs mds auth caps issue\n\nThe mds auth caps check should also validate the\nfsname along with the associated caps. Not doing\nso would result in applying the mds auth caps of\none fs on to the other fs in a multifs ceph cluster.\nThe bug causes multiple issues w.r.t user\nauthentication, following is one such example.\n\nSteps to Reproduce (on vstart cluster):\n1. Create two file systems in a cluster, say 'fsname1' and 'fsname2'\n2. Authorize read only permission to the user 'client.usr' on fs 'fsname1'\n $ceph fs authorize fsname1 client.usr / r\n3. Authorize read and write permission to the same user 'client.usr' on fs 'fsname2'\n $ceph fs authorize fsname2 client.usr / rw\n4. Update the keyring\n $ceph auth get client.usr >> ./keyring\n\nWith above permssions for the user 'client.usr', following is the\nexpectation.\n a. The 'client.usr' should be able to only read the contents\n and not allowed to create or delete files on file system 'fsname1'.\n b. The 'client.usr' should be able to read/write on file system 'fsname2'.\n\nBut, with this bug, the 'client.usr' is allowed to read/write on file\nsystem 'fsname1'. See below.\n\n5. Mount the file system 'fsname1' with the user 'client.usr'\n $sudo bin/mount.ceph usr@.fsname1=/ /kmnt_fsname1_usr/\n6. Try creating a file on file system 'fsname1' with user 'client.usr'. This\n should fail but passes with this bug.\n $touch /kmnt_fsname1_usr/file1\n7. Mount the file system 'fsname1' with the user 'client.admin' and create a\n file.\n $sudo bin/mount.ceph admin@.fsname1=/ /kmnt_fsname1_admin\n $echo \"data\" > /kmnt_fsname1_admin/admin_file1\n8. Try removing an existing file on file system 'fsname1' with the user\n 'client.usr'. This shoudn't succeed but succeeds with the bug.\n $rm -f /kmnt_fsname1_usr/admin_file1\n\nFor more information, please take a look at the corresponding mds/fuse patch\nand tests added by looking into the tracker mentioned below.\n\nv2: Fix a possible null dereference in doutc\nv3: Don't store fsname from mdsmap, validate against\n ceph_mount_options's fsname and use it\nv4: Code refactor, better warning message and\n fix possible compiler warning\n\n[ Slava.Dubeyko: \"fsname check failed\" -> \"fsname mismatch\" ]"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nceph: corrige problema de capacidades de autenticaci\u00f3n mds multifs\n\nLa verificaci\u00f3n de capacidades de autenticaci\u00f3n mds tambi\u00e9n deber\u00eda validar el fsname junto con las capacidades asociadas. No hacerlo resultar\u00eda en la aplicaci\u00f3n de las capacidades de autenticaci\u00f3n mds de un fs en el otro fs en un cl\u00faster ceph multifs. El error causa m\u00faltiples problemas con respecto a la autenticaci\u00f3n de usuario, el siguiente es un ejemplo.\n\nPasos para Reproducir (en cl\u00faster vstart):\n1. Cree dos sistemas de archivos en un cl\u00faster, por ejemplo 'fsname1' y 'fsname2'\n2. Autorice permiso de solo lectura al usuario 'client.usr' en el fs 'fsname1'\n $ceph fs authorize fsname1 client.usr / r\n3. Autorice permiso de lectura y escritura al mismo usuario 'client.usr' en el fs 'fsname2'\n $ceph fs authorize fsname2 client.usr / rw\n4. Actualice el keyring\n $ceph auth get client.usr >> ./keyring\n\nCon los permisos anteriores para el usuario 'client.usr', la siguiente es la expectativa.\n a. El 'client.usr' deber\u00eda poder solo leer los contenidos y no tener permitido crear o eliminar archivos en el sistema de archivos 'fsname1'.\n b. El 'client.usr' deber\u00eda poder leer/escribir en el sistema de archivos 'fsname2'.\n\nPero, con este error, al 'client.usr' se le permite leer/escribir en el sistema de archivos 'fsname1'. Vea a continuaci\u00f3n.\n\n5. Monte el sistema de archivos 'fsname1' con el usuario 'client.usr'\n $sudo bin/mount.ceph usr@.fsname1=/ /kmnt_fsname1_usr/\n6. Intente crear un archivo en el sistema de archivos 'fsname1' con el usuario 'client.usr'. Esto deber\u00eda fallar pero pasa con este error.\n $touch /kmnt_fsname1_usr/file1\n7. Monte el sistema de archivos 'fsname1' con el usuario 'client.admin' y cree un archivo.\n $sudo bin/mount.ceph admin@.fsname1=/ /kmnt_fsname1_admin\n $echo \u201cdata\u201d > /kmnt_fsname1_admin/admin_file1\n8. Intente eliminar un archivo existente en el sistema de archivos 'fsname1' con el usuario 'client.usr'. Esto no deber\u00eda tener \u00e9xito pero tiene \u00e9xito con el error.\n $rm -f /kmnt_fsname1_usr/admin_file1\n\nPara m\u00e1s informaci\u00f3n, por favor, eche un vistazo al parche mds/fuse correspondiente y las pruebas a\u00f1adidas consultando el rastreador mencionado a continuaci\u00f3n.\n\nv2: Corrige una posible desreferencia nula en doutc\nv3: No almacene fsname de mdsmap, valide contra el fsname de ceph_mount_options y \u00faselo\nv4: Refactorizaci\u00f3n de c\u00f3digo, mejor mensaje de advertencia y corrige posible advertencia del compilador\n\n[ Slava.Dubeyko: 'fsname check failed' -> 'fsname mismatch' ]"}], "id": "CVE-2025-40362", "lastModified": "2026-10-15T22:19:09.207", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-40362", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:59:40.317622Z", "version": "2.0.3"}}]}, "published": "2025-12-16T14:15:48.217", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/07640d34a781bb2e39020a39137073c03c4aa932"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/22c73d52a6d05c5a2053385c0d6cd9984732799d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ca3da8b27ab9a0923ad477447cfb8fc7f4b4c523"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: ceph: fix multifs mds auth caps issue", "id": "2422727", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2422727"}, "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": ["No description is available for this CVE."], "name": "CVE-2025-40362", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "2025-12-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-40362\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-40362\nhttps://lore.kernel.org/linux-cve-announce/2025121645-CVE-2025-40362-c4d6@gregkh/T"], "threat_severity": "Moderate"}

{}