{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-50127", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.954Z", "datePublished": "2024-11-05T17:10:54.385Z", "dateUpdated": "2024-11-08T15:58:38.153Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-08T15:58:38.153Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: fix use-after-free in taprio_change()\n\nIn 'taprio_change()', 'admin' pointer may become dangling due to sched\nswitch / removal caused by 'advance_sched()', and critical section\nprotected by 'q->current_entry_lock' is too small to prevent from such\na scenario (which causes use-after-free detected by KASAN). Fix this\nby prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update\n'admin' immediately before an attempt to schedule freeing."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sched/sch_taprio.c"], "versions": [{"version": "a3d43c0d56f1", "lessThan": "2f868ce60135", "status": "affected", "versionType": "git"}, {"version": "a3d43c0d56f1", "lessThan": "8a283a19026a", "status": "affected", "versionType": "git"}, {"version": "a3d43c0d56f1", "lessThan": "999612996df2", "status": "affected", "versionType": "git"}, {"version": "a3d43c0d56f1", "lessThan": "fe371f084073", "status": "affected", "versionType": "git"}, {"version": "a3d43c0d56f1", "lessThan": "0d4c0d2844e4", "status": "affected", "versionType": "git"}, {"version": "a3d43c0d56f1", "lessThan": "2240f9376f20", "status": "affected", "versionType": "git"}, {"version": "a3d43c0d56f1", "lessThan": "f504465970ae", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sched/sch_taprio.c"], "versions": [{"version": "5.2", "status": "affected"}, {"version": "0", "lessThan": "5.2", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.285", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.229", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.170", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.115", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.59", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.6", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12-rc5", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/2f868ce6013548a713c431c679ef73747a66fcf3"}, {"url": "https://git.kernel.org/stable/c/8a283a19026aaae8a773fd8061263cfa315b127f"}, {"url": "https://git.kernel.org/stable/c/999612996df28d81f163dad530d7f8026e03aec6"}, {"url": "https://git.kernel.org/stable/c/fe371f084073e8672a2d7d46b335c3c060d1e301"}, {"url": "https://git.kernel.org/stable/c/0d4c0d2844e4eac3aed647f948fd7e60eea56a61"}, {"url": "https://git.kernel.org/stable/c/2240f9376f20f8b6463232b4ca7292569217237f"}, {"url": "https://git.kernel.org/stable/c/f504465970aebb2467da548f7c1efbbf36d0f44b"}], "title": "net: sched: fix use-after-free in taprio_change()", "x_generator": {"engine": "bippy-9e1c9544281a"}}}}

{}

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{"bugzilla": {"description": "kernel: net: sched: fix use-after-free in taprio_change()", "id": "2323927", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2323927"}, "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:\nnet: sched: fix use-after-free in taprio_change()\nIn 'taprio_change()', 'admin' pointer may become dangling due to sched\nswitch / removal caused by 'advance_sched()', and critical section\nprotected by 'q->current_entry_lock' is too small to prevent from such\na scenario (which causes use-after-free detected by KASAN). Fix this\nby prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update\n'admin' immediately before an attempt to schedule freeing."], "name": "CVE-2024-50127", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-11-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50127\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50127\nhttps://lore.kernel.org/linux-cve-announce/2024110557-CVE-2024-50127-c0b5@gregkh/T"], "threat_severity": "Moderate"}