CVE-2022-49688

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-49688", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:21:30.442Z", "datePublished": "2025-02-26T02:24:13.686Z", "dateUpdated": "2026-05-23T15:22:44.050Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:22:44.050Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix dynamic root getattr\n\nThe recent patch to make afs_getattr consult the server didn't account\nfor the pseudo-inodes employed by the dynamic root-type afs superblock\nnot having a volume or a server to access, and thus an oops occurs if\nsuch a directory is stat'd.\n\nFix this by checking to see if the vnode->volume pointer actually points\nanywhere before following it in afs_getattr().\n\nThis can be tested by stat'ing a directory in /afs. It may be\nsufficient just to do \"ls /afs\" and the oops looks something like:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000020\n ...\n RIP: 0010:afs_getattr+0x8b/0x14b\n ...\n Call Trace:\n <TASK>\n vfs_statx+0x79/0xf5\n vfs_fstatat+0x49/0x62"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/afs/inode.c"], "versions": [{"version": "b76ea7c06b24dcf97ea3379b6957d5b99c346ea0", "lessThan": "65c24caf1b9f5b08397c6e805ec24ebc390c6e4d", "status": "affected", "versionType": "git"}, {"version": "dba1941f5bc3de6b460685155b89ae1182824fc8", "lessThan": "e3a232e5767051483ffad4cef7d0a89d292a192b", "status": "affected", "versionType": "git"}, {"version": "61a4cc41e5c1b77d05a12798f8032050aa75f3c8", "lessThan": "7b564e3254b7db5fbfbf11a824627a6c31b932b4", "status": "affected", "versionType": "git"}, {"version": "94bf8bfb009fad247d02f12e4c443411c8445412", "lessThan": "2b2bba96526f25f2eba74ecadb031de2e05a83ce", "status": "affected", "versionType": "git"}, {"version": "2aeb8c86d49967552394d5e723f87454cb53f501", "lessThan": "7844ceada44eca740d31beb3d97b8511b1ca0a9b", "status": "affected", "versionType": "git"}, {"version": "2aeb8c86d49967552394d5e723f87454cb53f501", "lessThan": "cb78d1b5efffe4cf97e16766329dd7358aed3deb", "status": "affected", "versionType": "git"}, {"version": "9e655a8b874d7c56e02938ddb221b16e293793df", "status": "affected", "versionType": "git"}, {"version": "4.19.245", "lessThan": "4.19.250", "status": "affected", "versionType": "semver"}, {"version": "5.4.196", "lessThan": "5.4.202", "status": "affected", "versionType": "semver"}, {"version": "5.10.118", "lessThan": "5.10.127", "status": "affected", "versionType": "semver"}, {"version": "5.15.42", "lessThan": "5.15.51", "status": "affected", "versionType": "semver"}, {"version": "5.17.10", "lessThan": "5.18", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/afs/inode.c"], "versions": [{"version": "5.18", "status": "affected"}, {"version": "0", "lessThan": "5.18", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.250", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.202", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.127", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.51", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.8", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "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": "4.19.245", "versionEndExcluding": "4.19.250"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.196", "versionEndExcluding": "5.4.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.118", "versionEndExcluding": "5.10.127"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.42", "versionEndExcluding": "5.15.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "5.18.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "5.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17.10"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/65c24caf1b9f5b08397c6e805ec24ebc390c6e4d"}, {"url": "https://git.kernel.org/stable/c/e3a232e5767051483ffad4cef7d0a89d292a192b"}, {"url": "https://git.kernel.org/stable/c/7b564e3254b7db5fbfbf11a824627a6c31b932b4"}, {"url": "https://git.kernel.org/stable/c/2b2bba96526f25f2eba74ecadb031de2e05a83ce"}, {"url": "https://git.kernel.org/stable/c/7844ceada44eca740d31beb3d97b8511b1ca0a9b"}, {"url": "https://git.kernel.org/stable/c/cb78d1b5efffe4cf97e16766329dd7358aed3deb"}], "title": "afs: Fix dynamic root getattr", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/afs/inode.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "65c24caf1b9f5b08397c6e805ec24ebc390c6e4d", "status": "affected", "version": "b76ea7c06b24dcf97ea3379b6957d5b99c346ea0", "versionType": "git"}, {"lessThan": "e3a232e5767051483ffad4cef7d0a89d292a192b", "status": "affected", "version": "dba1941f5bc3de6b460685155b89ae1182824fc8", "versionType": "git"}, {"lessThan": "7b564e3254b7db5fbfbf11a824627a6c31b932b4", "status": "affected", "version": "61a4cc41e5c1b77d05a12798f8032050aa75f3c8", "versionType": "git"}, {"lessThan": "2b2bba96526f25f2eba74ecadb031de2e05a83ce", "status": "affected", "version": "94bf8bfb009fad247d02f12e4c443411c8445412", "versionType": "git"}, {"lessThan": "7844ceada44eca740d31beb3d97b8511b1ca0a9b", "status": "affected", "version": "2aeb8c86d49967552394d5e723f87454cb53f501", "versionType": "git"}, {"lessThan": "cb78d1b5efffe4cf97e16766329dd7358aed3deb", "status": "affected", "version": "2aeb8c86d49967552394d5e723f87454cb53f501", "versionType": "git"}, {"status": "affected", "version": "9e655a8b874d7c56e02938ddb221b16e293793df", "versionType": "git"}, {"lessThan": "4.19.250", "status": "affected", "version": "4.19.245", "versionType": "semver"}, {"lessThan": "5.4.202", "status": "affected", "version": "5.4.196", "versionType": "semver"}, {"lessThan": "5.10.127", "status": "affected", "version": "5.10.118", "versionType": "semver"}, {"lessThan": "5.15.51", "status": "affected", "version": "5.15.42", "versionType": "semver"}, {"lessThan": "5.18", "status": "affected", "version": "5.17.10", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/afs/inode.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.18"}, {"lessThan": "5.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.250", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.202", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.127", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.51", "versionType": "semver"}, {"lessThanOrEqual": "5.18.*", "status": "unaffected", "version": "5.18.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.19", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D8FD9183-1FC9-40F6-886E-563AC17B7EC0", "versionEndExcluding": "4.19.250", "versionStartIncluding": "4.19.245", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D64CA5C6-AF30-4737-84B0-A565BA88B0A6", "versionEndExcluding": "5.4.202", "versionStartIncluding": "5.4.196", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "70A026F4-75A8-4616-9F13-BC7FD79CDEC2", "versionEndExcluding": "5.10.127", "versionStartIncluding": "5.10.118", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D21EEE37-4E3D-4BA6-B9F9-0A4DA6D6B362", "versionEndExcluding": "5.15.51", "versionStartIncluding": "5.15.42", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E648BBD2-268B-4150-94DA-5E0D23BF336E", "versionEndExcluding": "5.18", "versionStartIncluding": "5.17.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9B968257-D7C0-48F8-BF31-CC9A6BBD21DB", "versionEndExcluding": "5.18.8", "versionStartIncluding": "5.18.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.18:-:*:*:*:*:*:*", "matchCriteriaId": "0384FA0A-DE99-48D7-84E3-46ED0C3B5E03", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*", "matchCriteriaId": "A8C30C2D-F82D-4D37-AB48-D76ABFBD5377", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*", "matchCriteriaId": "BF8547FC-C849-4F1B-804B-A93AE2F04A92", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*", "matchCriteriaId": "F3068028-F453-4A1C-B80F-3F5609ACEF60", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix dynamic root getattr\n\nThe recent patch to make afs_getattr consult the server didn't account\nfor the pseudo-inodes employed by the dynamic root-type afs superblock\nnot having a volume or a server to access, and thus an oops occurs if\nsuch a directory is stat'd.\n\nFix this by checking to see if the vnode->volume pointer actually points\nanywhere before following it in afs_getattr().\n\nThis can be tested by stat'ing a directory in /afs. It may be\nsufficient just to do \"ls /afs\" and the oops looks something like:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000020\n ...\n RIP: 0010:afs_getattr+0x8b/0x14b\n ...\n Call Trace:\n <TASK>\n vfs_statx+0x79/0xf5\n vfs_fstatat+0x49/0x62"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: afs: Fix dynamic root getattr El parche reciente para hacer que afs_getattr consulte al servidor no tuvo en cuenta los pseudoinodos empleados por el superbloque afs de tipo ra\u00edz din\u00e1mico que no tienen un volumen o un servidor al que acceder, y por lo tanto ocurre un error si se agrega una estad\u00edstica a dicho directorio. Arregle esto verificando si el puntero vnode-&gt;volume realmente apunta a alg\u00fan lugar antes de seguirlo en afs_getattr(). Esto se puede probar agregando una estad\u00edstica a un directorio en /afs. Puede ser suficiente con hacer \"ls /afs\" y el error se ver\u00e1 as\u00ed: ERROR: desreferencia de puntero NULL del n\u00facleo, direcci\u00f3n: 0000000000000020 ... RIP: 0010:afs_getattr+0x8b/0x14b ... Seguimiento de llamadas: vfs_statx+0x79/0xf5 vfs_fstatat+0x49/0x62"}], "id": "CVE-2022-49688", "lastModified": "2026-06-17T05:18:52.167", "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": "2025-02-26T07:01:43.617", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2b2bba96526f25f2eba74ecadb031de2e05a83ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/65c24caf1b9f5b08397c6e805ec24ebc390c6e4d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7844ceada44eca740d31beb3d97b8511b1ca0a9b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b564e3254b7db5fbfbf11a824627a6c31b932b4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cb78d1b5efffe4cf97e16766329dd7358aed3deb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e3a232e5767051483ffad4cef7d0a89d292a192b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2023:2458", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}, {"advisory": "RHSA-2023:2458", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}], "bugzilla": {"description": "kernel: afs: Fix dynamic root getattr", "id": "2347700", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347700"}, "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": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nafs: Fix dynamic root getattr\nThe recent patch to make afs_getattr consult the server didn't account\nfor the pseudo-inodes employed by the dynamic root-type afs superblock\nnot having a volume or a server to access, and thus an oops occurs if\nsuch a directory is stat'd.\nFix this by checking to see if the vnode->volume pointer actually points\nanywhere before following it in afs_getattr().\nThis can be tested by stat'ing a directory in /afs. It may be\nsufficient just to do \"ls /afs\" and the oops looks something like:\nBUG: kernel NULL pointer dereference, address: 0000000000000020\n...\nRIP: 0010:afs_getattr+0x8b/0x14b\n...\nCall Trace:\n<TASK>\nvfs_statx+0x79/0xf5\nvfs_fstatat+0x49/0x62"], "name": "CVE-2022-49688", "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": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49688\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49688\nhttps://lore.kernel.org/linux-cve-announce/2025022627-CVE-2022-49688-5c71@gregkh/T"], "threat_severity": "Low"}

{}