{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49890", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-01T14:05:17.242Z", "datePublished": "2025-05-01T14:10:34.481Z", "dateUpdated": "2025-05-04T08:47:53.416Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:47:53.416Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncapabilities: fix potential memleak on error path from vfs_getxattr_alloc()\n\nIn cap_inode_getsecurity(), we will use vfs_getxattr_alloc() to\ncomplete the memory allocation of tmpbuf, if we have completed\nthe memory allocation of tmpbuf, but failed to call handler->get(...),\nthere will be a memleak in below logic:\n\n |-- ret = (int)vfs_getxattr_alloc(mnt_userns, ...)\n | /* ^^^ alloc for tmpbuf */\n |-- value = krealloc(*xattr_value, error + 1, flags)\n | /* ^^^ alloc memory */\n |-- error = handler->get(handler, ...)\n | /* error! */\n |-- *xattr_value = value\n | /* xattr_value is &tmpbuf (memory leak!) */\n\nSo we will try to free(tmpbuf) after vfs_getxattr_alloc() fails to fix it.\n\n[PM: subject line and backtrace tweaks]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/commoncap.c"], "versions": [{"version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "lessThan": "6bb00eb21c0fbf18e5d3538c9ff0cf63fd0ace85", "status": "affected", "versionType": "git"}, {"version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "lessThan": "90577bcc01c4188416a47269f8433f70502abe98", "status": "affected", "versionType": "git"}, {"version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "lessThan": "0c3e6288da650d1ec911a259c77bc2d88e498603", "status": "affected", "versionType": "git"}, {"version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "lessThan": "cdf01c807e974048c43c7fd3ca574f6086a57906", "status": "affected", "versionType": "git"}, {"version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "lessThan": "2de8eec8afb75792440b8900a01d52b8f6742fd1", "status": "affected", "versionType": "git"}, {"version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "lessThan": "7480aeff0093d8c54377553ec6b31110bea37b4d", "status": "affected", "versionType": "git"}, {"version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "lessThan": "8cf0a1bc12870d148ae830a4ba88cfdf0e879cee", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/commoncap.c"], "versions": [{"version": "4.14", "status": "affected"}, {"version": "0", "lessThan": "4.14", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.299", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.265", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.224", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.154", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.78", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.8", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "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": "4.14", "versionEndExcluding": "4.14.299"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "4.19.265"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.4.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.10.154"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.15.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.0.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6bb00eb21c0fbf18e5d3538c9ff0cf63fd0ace85"}, {"url": "https://git.kernel.org/stable/c/90577bcc01c4188416a47269f8433f70502abe98"}, {"url": "https://git.kernel.org/stable/c/0c3e6288da650d1ec911a259c77bc2d88e498603"}, {"url": "https://git.kernel.org/stable/c/cdf01c807e974048c43c7fd3ca574f6086a57906"}, {"url": "https://git.kernel.org/stable/c/2de8eec8afb75792440b8900a01d52b8f6742fd1"}, {"url": "https://git.kernel.org/stable/c/7480aeff0093d8c54377553ec6b31110bea37b4d"}, {"url": "https://git.kernel.org/stable/c/8cf0a1bc12870d148ae830a4ba88cfdf0e879cee"}], "title": "capabilities: fix potential memleak on error path from vfs_getxattr_alloc()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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[MP: l\u00ednea de asunto y ajustes de backtrace]"}], "id": "CVE-2022-49890", "lastModified": "2025-05-07T13:19:54.100", "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": "[email protected]", "type": "Primary"}]}, "published": "2025-05-01T15:16:14.000", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0c3e6288da650d1ec911a259c77bc2d88e498603"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2de8eec8afb75792440b8900a01d52b8f6742fd1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6bb00eb21c0fbf18e5d3538c9ff0cf63fd0ace85"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7480aeff0093d8c54377553ec6b31110bea37b4d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8cf0a1bc12870d148ae830a4ba88cfdf0e879cee"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/90577bcc01c4188416a47269f8433f70502abe98"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cdf01c807e974048c43c7fd3ca574f6086a57906"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: capabilities: fix potential memleak on error path from vfs_getxattr_alloc()", "id": "2363448", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363448"}, "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:\ncapabilities: fix potential memleak on error path from vfs_getxattr_alloc()\nIn cap_inode_getsecurity(), we will use vfs_getxattr_alloc() to\ncomplete the memory allocation of tmpbuf, if we have completed\nthe memory allocation of tmpbuf, but failed to call handler->get(...),\nthere will be a memleak in below logic:\n|-- ret = (int)vfs_getxattr_alloc(mnt_userns, ...)\n| /* ^^^ alloc for tmpbuf */\n|-- value = krealloc(*xattr_value, error + 1, flags)\n| /* ^^^ alloc memory */\n|-- error = handler->get(handler, ...)\n| /* error! */\n|-- *xattr_value = value\n| /* xattr_value is &tmpbuf (memory leak!) */\nSo we will try to free(tmpbuf) after vfs_getxattr_alloc() fails to fix it.\n[PM: subject line and backtrace tweaks]"], "name": "CVE-2022-49890", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "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": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49890\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49890\nhttps://lore.kernel.org/linux-cve-announce/2025050157-CVE-2022-49890-345f@gregkh/T"], "threat_severity": "Moderate"}