{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-48996", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-22T01:27:53.637Z", "datePublished": "2024-10-21T20:06:12.122Z", "dateUpdated": "2024-12-19T08:12:07.190Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T08:12:07.190Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes()\n\nCommit da87878010e5 (\"mm/damon/sysfs: support online inputs update\") made\n'damon_sysfs_set_schemes()' to be called for running DAMON context, which\ncould have schemes. In the case, DAMON sysfs interface is supposed to\nupdate, remove, or add schemes to reflect the sysfs files. However, the\ncode is assuming the DAMON context wouldn't have schemes at all, and\ntherefore creates and adds new schemes. As a result, the code doesn't\nwork as intended for online schemes tuning and could have more than\nexpected memory footprint. The schemes are all in the DAMON context, so\nit doesn't leak the memory, though.\n\nRemove the wrong asssumption (the DAMON context wouldn't have schemes) in\n'damon_sysfs_set_schemes()' to fix the bug."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/sysfs.c"], "versions": [{"version": "da87878010e59869d4d27b3c01ecc8ec06ff4a20", "lessThan": "f98d1f2a36ad7ab48fb4cf73ca14e7b19482fd4d", "status": "affected", "versionType": "git"}, {"version": "da87878010e59869d4d27b3c01ecc8ec06ff4a20", "lessThan": "95bc35f9bee5220dad4e8567654ab3288a181639", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/sysfs.c"], "versions": [{"version": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.12", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/f98d1f2a36ad7ab48fb4cf73ca14e7b19482fd4d"}, {"url": "https://git.kernel.org/stable/c/95bc35f9bee5220dad4e8567654ab3288a181639"}], "title": "mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48996", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:15:49.578394Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:18:41.449Z"}}]}}

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{"bugzilla": {"description": "kernel: mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes()", "id": "2320737", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320737"}, "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"}, "cwe": "CWE-672", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes()\nCommit da87878010e5 (\"mm/damon/sysfs: support online inputs update\") made\n'damon_sysfs_set_schemes()' to be called for running DAMON context, which\ncould have schemes. In the case, DAMON sysfs interface is supposed to\nupdate, remove, or add schemes to reflect the sysfs files. However, the\ncode is assuming the DAMON context wouldn't have schemes at all, and\ntherefore creates and adds new schemes. As a result, the code doesn't\nwork as intended for online schemes tuning and could have more than\nexpected memory footprint. The schemes are all in the DAMON context, so\nit doesn't leak the memory, though.\nRemove the wrong asssumption (the DAMON context wouldn't have schemes) in\n'damon_sysfs_set_schemes()' to fix the bug."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2022-48996", "package_state": [{"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": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48996\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48996\nhttps://lore.kernel.org/linux-cve-announce/2024102149-CVE-2022-48996-e9ca@gregkh/T"], "statement": "Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.", "threat_severity": "Moderate"}