{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-21692", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.742Z", "datePublished": "2025-02-10T15:58:48.087Z", "dateUpdated": "2025-02-10T15:58:48.087Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-02-10T15:58:48.087Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: fix ets qdisc OOB Indexing\n\nHaowei Yan <g1042620637@gmail.com> found that ets_class_from_arg() can\nindex an Out-Of-Bound class in ets_class_from_arg() when passed clid of\n0. The overflow may cause local privilege escalation.\n\n [ 18.852298] ------------[ cut here ]------------\n [ 18.853271] UBSAN: array-index-out-of-bounds in net/sched/sch_ets.c:93:20\n [ 18.853743] index 18446744073709551615 is out of range for type 'ets_class [16]'\n [ 18.854254] CPU: 0 UID: 0 PID: 1275 Comm: poc Not tainted 6.12.6-dirty #17\n [ 18.854821] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n [ 18.856532] Call Trace:\n [ 18.857441] <TASK>\n [ 18.858227] dump_stack_lvl+0xc2/0xf0\n [ 18.859607] dump_stack+0x10/0x20\n [ 18.860908] __ubsan_handle_out_of_bounds+0xa7/0xf0\n [ 18.864022] ets_class_change+0x3d6/0x3f0\n [ 18.864322] tc_ctl_tclass+0x251/0x910\n [ 18.864587] ? lock_acquire+0x5e/0x140\n [ 18.865113] ? __mutex_lock+0x9c/0xe70\n [ 18.866009] ? __mutex_lock+0xa34/0xe70\n [ 18.866401] rtnetlink_rcv_msg+0x170/0x6f0\n [ 18.866806] ? __lock_acquire+0x578/0xc10\n [ 18.867184] ? __pfx_rtnetlink_rcv_msg+0x10/0x10\n [ 18.867503] netlink_rcv_skb+0x59/0x110\n [ 18.867776] rtnetlink_rcv+0x15/0x30\n [ 18.868159] netlink_unicast+0x1c3/0x2b0\n [ 18.868440] netlink_sendmsg+0x239/0x4b0\n [ 18.868721] ____sys_sendmsg+0x3e2/0x410\n [ 18.869012] ___sys_sendmsg+0x88/0xe0\n [ 18.869276] ? rseq_ip_fixup+0x198/0x260\n [ 18.869563] ? rseq_update_cpu_node_id+0x10a/0x190\n [ 18.869900] ? trace_hardirqs_off+0x5a/0xd0\n [ 18.870196] ? syscall_exit_to_user_mode+0xcc/0x220\n [ 18.870547] ? do_syscall_64+0x93/0x150\n [ 18.870821] ? __memcg_slab_free_hook+0x69/0x290\n [ 18.871157] __sys_sendmsg+0x69/0xd0\n [ 18.871416] __x64_sys_sendmsg+0x1d/0x30\n [ 18.871699] x64_sys_call+0x9e2/0x2670\n [ 18.871979] do_syscall_64+0x87/0x150\n [ 18.873280] ? do_syscall_64+0x93/0x150\n [ 18.874742] ? lock_release+0x7b/0x160\n [ 18.876157] ? do_user_addr_fault+0x5ce/0x8f0\n [ 18.877833] ? irqentry_exit_to_user_mode+0xc2/0x210\n [ 18.879608] ? irqentry_exit+0x77/0xb0\n [ 18.879808] ? clear_bhb_loop+0x15/0x70\n [ 18.880023] ? clear_bhb_loop+0x15/0x70\n [ 18.880223] ? clear_bhb_loop+0x15/0x70\n [ 18.880426] entry_SYSCALL_64_after_hwframe+0x76/0x7e\n [ 18.880683] RIP: 0033:0x44a957\n [ 18.880851] Code: ff ff e8 fc 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 8974 24 10\n [ 18.881766] RSP: 002b:00007ffcdd00fad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\n [ 18.882149] RAX: ffffffffffffffda RBX: 00007ffcdd010db8 RCX: 000000000044a957\n [ 18.882507] RDX: 0000000000000000 RSI: 00007ffcdd00fb70 RDI: 0000000000000003\n [ 18.885037] RBP: 00007ffcdd010bc0 R08: 000000000703c770 R09: 000000000703c7c0\n [ 18.887203] R10: 0000000000000080 R11: 0000000000000246 R12: 0000000000000001\n [ 18.888026] R13: 00007ffcdd010da8 R14: 00000000004ca7d0 R15: 0000000000000001\n [ 18.888395] </TASK>\n [ 18.888610] ---[ end trace ]---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sched/sch_ets.c"], "versions": [{"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33", "lessThan": "03c56665dab1f4ac844bc156652d50d639093fa5", "status": "affected", "versionType": "git"}, {"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33", "lessThan": "bcf0d815e728a3a304b50455b32a3170c16e1eaa", "status": "affected", "versionType": "git"}, {"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33", "lessThan": "1332c6ed446be787f901ed1064ec6a3c694f028a", "status": "affected", "versionType": "git"}, {"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33", "lessThan": "f4168299e553f17aa2ba4016e77a9c38da40eb1d", "status": "affected", "versionType": "git"}, {"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33", "lessThan": "997f6ec4208b23c87daf9f044689685f091826f7", "status": "affected", "versionType": "git"}, {"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33", "lessThan": "f6b0f05fbfa4044f890e8a348288c0d9a20bd1d0", "status": "affected", "versionType": "git"}, {"version": "dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33", "lessThan": "d62b04fca4340a0d468d7853bd66e511935a18cb", "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_ets.c"], "versions": [{"version": "5.6", "status": "affected"}, {"version": "0", "lessThan": "5.6", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.234", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.178", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.128", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.75", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.12", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.1", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/03c56665dab1f4ac844bc156652d50d639093fa5"}, {"url": "https://git.kernel.org/stable/c/bcf0d815e728a3a304b50455b32a3170c16e1eaa"}, {"url": "https://git.kernel.org/stable/c/1332c6ed446be787f901ed1064ec6a3c694f028a"}, {"url": "https://git.kernel.org/stable/c/f4168299e553f17aa2ba4016e77a9c38da40eb1d"}, {"url": "https://git.kernel.org/stable/c/997f6ec4208b23c87daf9f044689685f091826f7"}, {"url": "https://git.kernel.org/stable/c/f6b0f05fbfa4044f890e8a348288c0d9a20bd1d0"}, {"url": "https://git.kernel.org/stable/c/d62b04fca4340a0d468d7853bd66e511935a18cb"}], "title": "net: sched: fix ets qdisc OOB Indexing", "x_generator": {"engine": "bippy-5f407fcff5a0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DA6AE325-9EBC-47AE-B596-CA86A578FA40", "versionEndExcluding": "5.10.234", "versionStartIncluding": "5.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "171159A1-9827-4C7B-821D-55398B837C49", "versionEndExcluding": "5.15.178", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EDB5047C-0330-407A-BE1B-513B5BF304DE", "versionEndExcluding": "6.1.128", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E8D39B53-7390-48BE-92FD-8846BE8E8430", "versionEndExcluding": "6.6.75", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B04C243A-753B-49A9-87C7-92FCC1425FB7", "versionEndExcluding": "6.12.12", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:-:*:*:*:*:*:*", "matchCriteriaId": "5A3F9505-6B98-4269-8B81-127E55A1BF00", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*", "matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*", "matchCriteriaId": "5A073481-106D-4B15-B4C7-FB0213B8E1D4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*", "matchCriteriaId": "DE491969-75AE-4A6B-9A58-8FC5AF98798F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*", "matchCriteriaId": "93C0660D-7FB8-4FBA-892A-B064BA71E49E", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*", "matchCriteriaId": "034C36A6-C481-41F3-AE9A-D116E5BE6895", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc6:*:*:*:*:*:*", "matchCriteriaId": "8AF9DC49-2085-4FFB-A7E3-73DFAFECC7F2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc7:*:*:*:*:*:*", "matchCriteriaId": "5DFCDFB8-4FD0-465A-9076-D813D78FE51B", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: fix ets qdisc OOB Indexing\n\nHaowei Yan <g1042620637@gmail.com> found that ets_class_from_arg() can\nindex an Out-Of-Bound class in ets_class_from_arg() when passed clid of\n0. The overflow may cause local privilege escalation.\n\n [ 18.852298] ------------[ cut here ]------------\n [ 18.853271] UBSAN: array-index-out-of-bounds in net/sched/sch_ets.c:93:20\n [ 18.853743] index 18446744073709551615 is out of range for type 'ets_class [16]'\n [ 18.854254] CPU: 0 UID: 0 PID: 1275 Comm: poc Not tainted 6.12.6-dirty #17\n [ 18.854821] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n [ 18.856532] Call Trace:\n [ 18.857441] <TASK>\n [ 18.858227] dump_stack_lvl+0xc2/0xf0\n [ 18.859607] dump_stack+0x10/0x20\n [ 18.860908] __ubsan_handle_out_of_bounds+0xa7/0xf0\n [ 18.864022] ets_class_change+0x3d6/0x3f0\n [ 18.864322] tc_ctl_tclass+0x251/0x910\n [ 18.864587] ? lock_acquire+0x5e/0x140\n [ 18.865113] ? __mutex_lock+0x9c/0xe70\n [ 18.866009] ? __mutex_lock+0xa34/0xe70\n [ 18.866401] rtnetlink_rcv_msg+0x170/0x6f0\n [ 18.866806] ? __lock_acquire+0x578/0xc10\n [ 18.867184] ? __pfx_rtnetlink_rcv_msg+0x10/0x10\n [ 18.867503] netlink_rcv_skb+0x59/0x110\n [ 18.867776] rtnetlink_rcv+0x15/0x30\n [ 18.868159] netlink_unicast+0x1c3/0x2b0\n [ 18.868440] netlink_sendmsg+0x239/0x4b0\n [ 18.868721] ____sys_sendmsg+0x3e2/0x410\n [ 18.869012] ___sys_sendmsg+0x88/0xe0\n [ 18.869276] ? rseq_ip_fixup+0x198/0x260\n [ 18.869563] ? rseq_update_cpu_node_id+0x10a/0x190\n [ 18.869900] ? trace_hardirqs_off+0x5a/0xd0\n [ 18.870196] ? syscall_exit_to_user_mode+0xcc/0x220\n [ 18.870547] ? do_syscall_64+0x93/0x150\n [ 18.870821] ? __memcg_slab_free_hook+0x69/0x290\n [ 18.871157] __sys_sendmsg+0x69/0xd0\n [ 18.871416] __x64_sys_sendmsg+0x1d/0x30\n [ 18.871699] x64_sys_call+0x9e2/0x2670\n [ 18.871979] do_syscall_64+0x87/0x150\n [ 18.873280] ? do_syscall_64+0x93/0x150\n [ 18.874742] ? lock_release+0x7b/0x160\n [ 18.876157] ? do_user_addr_fault+0x5ce/0x8f0\n [ 18.877833] ? irqentry_exit_to_user_mode+0xc2/0x210\n [ 18.879608] ? irqentry_exit+0x77/0xb0\n [ 18.879808] ? clear_bhb_loop+0x15/0x70\n [ 18.880023] ? clear_bhb_loop+0x15/0x70\n [ 18.880223] ? clear_bhb_loop+0x15/0x70\n [ 18.880426] entry_SYSCALL_64_after_hwframe+0x76/0x7e\n [ 18.880683] RIP: 0033:0x44a957\n [ 18.880851] Code: ff ff e8 fc 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 8974 24 10\n [ 18.881766] RSP: 002b:00007ffcdd00fad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\n [ 18.882149] RAX: ffffffffffffffda RBX: 00007ffcdd010db8 RCX: 000000000044a957\n [ 18.882507] RDX: 0000000000000000 RSI: 00007ffcdd00fb70 RDI: 0000000000000003\n [ 18.885037] RBP: 00007ffcdd010bc0 R08: 000000000703c770 R09: 000000000703c7c0\n [ 18.887203] R10: 0000000000000080 R11: 0000000000000246 R12: 0000000000000001\n [ 18.888026] R13: 00007ffcdd010da8 R14: 00000000004ca7d0 R15: 0000000000000001\n [ 18.888395] </TASK>\n [ 18.888610] ---[ end trace ]---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: sched: fix ets qdisc OOB Indexing Haowei Yan descubri\u00f3 que ets_class_from_arg() puede indexar una clase fuera de los l\u00edmites en ets_class_from_arg() cuando se le pasa un clid de 0. El desbordamiento puede provocar una escalada de privilegios locales. [ 18.852298] ------------[ cut here ]------------ [ 18.853271] UBSAN: array-index-out-of-bounds in net/sched/sch_ets.c:93:20 [ 18.853743] index 18446744073709551615 is out of range for type 'ets_class [16]' [ 18.854254] CPU: 0 UID: 0 PID: 1275 Comm: poc Not tainted 6.12.6-dirty #17 [ 18.854821] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 [ 18.856532] Call Trace: [ 18.857441] [ 18.858227] dump_stack_lvl+0xc2/0xf0 [ 18.859607] dump_stack+0x10/0x20 [ 18.860908] __ubsan_handle_out_of_bounds+0xa7/0xf0 [ 18.864022] ets_class_change+0x3d6/0x3f0 [ 18.864322] tc_ctl_tclass+0x251/0x910 [ 18.864587] ? lock_acquire+0x5e/0x140 [ 18.865113] ? __mutex_lock+0x9c/0xe70 [ 18.866009] ? __mutex_lock+0xa34/0xe70 [ 18.866401] rtnetlink_rcv_msg+0x170/0x6f0 [ 18.866806] ? __lock_acquire+0x578/0xc10 [ 18.867184] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 18.867503] netlink_rcv_skb+0x59/0x110 [ 18.867776] rtnetlink_rcv+0x15/0x30 [ 18.868159] netlink_unicast+0x1c3/0x2b0 [ 18.868440] netlink_sendmsg+0x239/0x4b0 [ 18.868721] ____sys_sendmsg+0x3e2/0x410 [ 18.869012] ___sys_sendmsg+0x88/0xe0 [ 18.869276] ? rseq_ip_fixup+0x198/0x260 [ 18.869563] ? rseq_update_cpu_node_id+0x10a/0x190 [ 18.869900] ? trace_hardirqs_off+0x5a/0xd0 [ 18.870196] ? syscall_exit_to_user_mode+0xcc/0x220 [ 18.870547] ? do_syscall_64+0x93/0x150 [ 18.870821] ? __memcg_slab_free_hook+0x69/0x290 [ 18.871157] __sys_sendmsg+0x69/0xd0 [ 18.871416] __x64_sys_sendmsg+0x1d/0x30 [ 18.871699] x64_sys_call+0x9e2/0x2670 [ 18.871979] do_syscall_64+0x87/0x150 [ 18.873280] ? do_syscall_64+0x93/0x150 [ 18.874742] ? lock_release+0x7b/0x160 [ 18.876157] ? do_user_addr_fault+0x5ce/0x8f0 [ 18.877833] ? irqentry_exit_to_user_mode+0xc2/0x210 [ 18.879608] ? irqentry_exit+0x77/0xb0 [ 18.879808] ? clear_bhb_loop+0x15/0x70 [ 18.880023] ? clear_bhb_loop+0x15/0x70 [ 18.880223] ? clear_bhb_loop+0x15/0x70 [ 18.880426] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 18.880683] RIP: 0033:0x44a957 [ 18.880851] Code: ff ff e8 fc 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 &lt;48&gt; 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 8974 24 10 [ 18.881766] RSP: 002b:00007ffcdd00fad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.882149] RAX: ffffffffffffffda RBX: 00007ffcdd010db8 RCX: 000000000044a957 [ 18.882507] RDX: 0000000000000000 RSI: 00007ffcdd00fb70 RDI: 0000000000000003 [ 18.885037] RBP: 00007ffcdd010bc0 R08: 000000000703c770 R09: 000000000703c7c0 [ 18.887203] R10: 0000000000000080 R11: 0000000000000246 R12: 0000000000000001 [ 18.888026] R13: 00007ffcdd010da8 R14: 00000000004ca7d0 R15: 0000000000000001 [ 18.888395] [ 18.888610] ---[ end trace ]---"}], "id": "CVE-2025-21692", "lastModified": "2025-02-21T15:59:44.317", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-10T16:15:38.763", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/03c56665dab1f4ac844bc156652d50d639093fa5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1332c6ed446be787f901ed1064ec6a3c694f028a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/997f6ec4208b23c87daf9f044689685f091826f7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bcf0d815e728a3a304b50455b32a3170c16e1eaa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d62b04fca4340a0d468d7853bd66e511935a18cb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f4168299e553f17aa2ba4016e77a9c38da40eb1d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f6b0f05fbfa4044f890e8a348288c0d9a20bd1d0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-129"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: sched: fix ets qdisc OOB Indexing", "id": "2344686", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2344686"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.6", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: sched: fix ets qdisc OOB Indexing\nHaowei Yan <g1042620637@gmail.com> found that ets_class_from_arg() can\nindex an Out-Of-Bound class in ets_class_from_arg() when passed clid of\n0. The overflow may cause local privilege escalation.\n[ 18.852298] ------------[ cut here ]------------\n[ 18.853271] UBSAN: array-index-out-of-bounds in net/sched/sch_ets.c:93:20\n[ 18.853743] index 18446744073709551615 is out of range for type 'ets_class [16]'\n[ 18.854254] CPU: 0 UID: 0 PID: 1275 Comm: poc Not tainted 6.12.6-dirty #17\n[ 18.854821] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n[ 18.856532] Call Trace:\n[ 18.857441] <TASK>\n[ 18.858227] dump_stack_lvl+0xc2/0xf0\n[ 18.859607] dump_stack+0x10/0x20\n[ 18.860908] __ubsan_handle_out_of_bounds+0xa7/0xf0\n[ 18.864022] ets_class_change+0x3d6/0x3f0\n[ 18.864322] tc_ctl_tclass+0x251/0x910\n[ 18.864587] ? lock_acquire+0x5e/0x140\n[ 18.865113] ? __mutex_lock+0x9c/0xe70\n[ 18.866009] ? __mutex_lock+0xa34/0xe70\n[ 18.866401] rtnetlink_rcv_msg+0x170/0x6f0\n[ 18.866806] ? __lock_acquire+0x578/0xc10\n[ 18.867184] ? __pfx_rtnetlink_rcv_msg+0x10/0x10\n[ 18.867503] netlink_rcv_skb+0x59/0x110\n[ 18.867776] rtnetlink_rcv+0x15/0x30\n[ 18.868159] netlink_unicast+0x1c3/0x2b0\n[ 18.868440] netlink_sendmsg+0x239/0x4b0\n[ 18.868721] ____sys_sendmsg+0x3e2/0x410\n[ 18.869012] ___sys_sendmsg+0x88/0xe0\n[ 18.869276] ? rseq_ip_fixup+0x198/0x260\n[ 18.869563] ? rseq_update_cpu_node_id+0x10a/0x190\n[ 18.869900] ? trace_hardirqs_off+0x5a/0xd0\n[ 18.870196] ? syscall_exit_to_user_mode+0xcc/0x220\n[ 18.870547] ? do_syscall_64+0x93/0x150\n[ 18.870821] ? __memcg_slab_free_hook+0x69/0x290\n[ 18.871157] __sys_sendmsg+0x69/0xd0\n[ 18.871416] __x64_sys_sendmsg+0x1d/0x30\n[ 18.871699] x64_sys_call+0x9e2/0x2670\n[ 18.871979] do_syscall_64+0x87/0x150\n[ 18.873280] ? do_syscall_64+0x93/0x150\n[ 18.874742] ? lock_release+0x7b/0x160\n[ 18.876157] ? do_user_addr_fault+0x5ce/0x8f0\n[ 18.877833] ? irqentry_exit_to_user_mode+0xc2/0x210\n[ 18.879608] ? irqentry_exit+0x77/0xb0\n[ 18.879808] ? clear_bhb_loop+0x15/0x70\n[ 18.880023] ? clear_bhb_loop+0x15/0x70\n[ 18.880223] ? clear_bhb_loop+0x15/0x70\n[ 18.880426] entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[ 18.880683] RIP: 0033:0x44a957\n[ 18.880851] Code: ff ff e8 fc 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 8974 24 10\n[ 18.881766] RSP: 002b:00007ffcdd00fad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\n[ 18.882149] RAX: ffffffffffffffda RBX: 00007ffcdd010db8 RCX: 000000000044a957\n[ 18.882507] RDX: 0000000000000000 RSI: 00007ffcdd00fb70 RDI: 0000000000000003\n[ 18.885037] RBP: 00007ffcdd010bc0 R08: 000000000703c770 R09: 000000000703c7c0\n[ 18.887203] R10: 0000000000000080 R11: 0000000000000246 R12: 0000000000000001\n[ 18.888026] R13: 00007ffcdd010da8 R14: 00000000004ca7d0 R15: 0000000000000001\n[ 18.888395] </TASK>\n[ 18.888610] ---[ end trace ]---"], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, prevent module sch_ets from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."}, "name": "CVE-2025-21692", "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": "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-21692\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-21692\nhttps://lore.kernel.org/linux-cve-announce/2025021056-CVE-2025-21692-9c7f@gregkh/T"], "statement": "The bug could happen only if The Enhanced Transmission Selection scheduler being used (as part of qdisc). This module being supported only in latest versions of Red Hat Enterprise Linux 9 and higher, so not affected before. The security impact is limited (selected Moderate), because only privileged user can enable this scheduler (and it is disabled by default).", "threat_severity": "Moderate"}