CVE-2022-50003

{"id": "CVE-2022-50003", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-06-18T11:15:28.173", "references": [{"url": "https://git.kernel.org/stable/c/03a3f29fe5b1751ad9b5c892c894183e75a6e4c4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1bfdcde723d8ceb2d73291b0415767e7c1cc1d8a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5a42f112d367bb4700a8a41f5c12724fde6bfbb9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fe76b3e674665ea4059337f8f66d20cdfb0168eb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: xsk: prohibit usage of non-balanced queue id\n\nFix the following scenario:\n1. ethtool -L $IFACE rx 8 tx 96\n2. xdpsock -q 10 -t -z\n\nAbove refers to a case where user would like to attach XSK socket in\ntxonly mode at a queue id that does not have a corresponding Rx queue.\nAt this moment ice's XSK logic is tightly bound to act on a \"queue pair\",\ne.g. both Tx and Rx queues at a given queue id are disabled/enabled and\nboth of them will get XSK pool assigned, which is broken for the presented\nqueue configuration. This results in the splat included at the bottom,\nwhich is basically an OOB access to Rx ring array.\n\nTo fix this, allow using the ids only in scope of \"combined\" queues\nreported by ethtool. However, logic should be rewritten to allow such\nconfigurations later on, which would end up as a complete rewrite of the\ncontrol path, so let us go with this temporary fix.\n\n[420160.558008] BUG: kernel NULL pointer dereference, address: 0000000000000082\n[420160.566359] #PF: supervisor read access in kernel mode\n[420160.572657] #PF: error_code(0x0000) - not-present page\n[420160.579002] PGD 0 P4D 0\n[420160.582756] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[420160.588396] CPU: 10 PID: 21232 Comm: xdpsock Tainted: G OE 5.19.0-rc7+ #10\n[420160.597893] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019\n[420160.609894] RIP: 0010:ice_xsk_pool_setup+0x44/0x7d0 [ice]\n[420160.616968] Code: f3 48 83 ec 40 48 8b 4f 20 48 8b 3f 65 48 8b 04 25 28 00 00 00 48 89 44 24 38 31 c0 48 8d 04 ed 00 00 00 00 48 01 c1 48 8b 11 <0f> b7 92 82 00 00 00 48 85 d2 0f 84 2d 75 00 00 48 8d 72 ff 48 85\n[420160.639421] RSP: 0018:ffffc9002d2afd48 EFLAGS: 00010282\n[420160.646650] RAX: 0000000000000050 RBX: ffff88811d8bdd00 RCX: ffff888112c14ff8\n[420160.655893] RDX: 0000000000000000 RSI: ffff88811d8bdd00 RDI: ffff888109861000\n[420160.665166] RBP: 000000000000000a R08: 000000000000000a R09: 0000000000000000\n[420160.674493] R10: 000000000000889f R11: 0000000000000000 R12: 000000000000000a\n[420160.683833] R13: 000000000000000a R14: 0000000000000000 R15: ffff888117611828\n[420160.693211] FS: 00007fa869fc1f80(0000) GS:ffff8897e0880000(0000) knlGS:0000000000000000\n[420160.703645] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[420160.711783] CR2: 0000000000000082 CR3: 00000001d076c001 CR4: 00000000007706e0\n[420160.721399] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[420160.731045] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[420160.740707] PKRU: 55555554\n[420160.745960] Call Trace:\n[420160.750962] <TASK>\n[420160.755597] ? kmalloc_large_node+0x79/0x90\n[420160.762703] ? __kmalloc_node+0x3f5/0x4b0\n[420160.769341] xp_assign_dev+0xfd/0x210\n[420160.775661] ? shmem_file_read_iter+0x29a/0x420\n[420160.782896] xsk_bind+0x152/0x490\n[420160.788943] __sys_bind+0xd0/0x100\n[420160.795097] ? exit_to_user_mode_prepare+0x20/0x120\n[420160.802801] __x64_sys_bind+0x16/0x20\n[420160.809298] do_syscall_64+0x38/0x90\n[420160.815741] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[420160.823731] RIP: 0033:0x7fa86a0dd2fb\n[420160.830264] Code: c3 66 0f 1f 44 00 00 48 8b 15 69 8b 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 0f 1f 44 00 00 f3 0f 1e fa b8 31 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d 8b 0c 00 f7 d8 64 89 01 48\n[420160.855410] RSP: 002b:00007ffc1146f618 EFLAGS: 00000246 ORIG_RAX: 0000000000000031\n[420160.866366] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa86a0dd2fb\n[420160.876957] RDX: 0000000000000010 RSI: 00007ffc1146f680 RDI: 0000000000000003\n[420160.887604] RBP: 000055d7113a0520 R08: 00007fa868fb8000 R09: 0000000080000000\n[420160.898293] R10: 0000000000008001 R11: 0000000000000246 R12: 000055d7113a04e0\n[420160.909038] R13: 000055d7113a0320 R14: 000000000000000a R15: 0000000000000000\n[420160.919817] </TASK>\n[420160.925659] Modules linked in: ice(OE) af_packet binfmt_misc\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ice: xsk: prohibir el uso de un id de cola no balanceado Corrija el siguiente escenario: 1. ethtool -L $IFACE rx 8 tx 96 2. xdpsock -q 10 -t -z Lo anterior se refiere a un caso en el que el usuario desea adjuntar un socket XSK en modo txonly a un id de cola que no tiene una cola Rx correspondiente. En este momento, la l\u00f3gica XSK de ice est\u00e1 estrechamente ligada a actuar en un \"par de colas\", por ejemplo, las colas Tx y Rx en un id de cola dado est\u00e1n deshabilitadas/habilitadas y a ambas se les asignar\u00e1 un grupo XSK, lo cual no funciona para la configuraci\u00f3n de cola presentada. Esto da como resultado el splat incluido en la parte inferior, que es b\u00e1sicamente un acceso OOB a la matriz de anillo Rx. Para solucionar esto, permita el uso de los id solo en el \u00e1mbito de las colas \"combinadas\" reportadas por ethtool. Sin embargo, la l\u00f3gica debe reescribirse para permitir tales configuraciones m\u00e1s adelante, lo que terminar\u00eda como una reescritura completa de la ruta de control, as\u00ed que sigamos con esta soluci\u00f3n temporal. [420160.558008] ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000082 [420160.566359] #PF: acceso de lectura del supervisor en modo kernel [420160.572657] #PF: error_code(0x0000) - p\u00e1gina no presente [420160.579002] PGD 0 P4D 0 [420160.582756] Oops: 0000 [#1] PREEMPT SMP NOPTI [420160.588396] CPU: 10 PID: 21232 Comm: xdpsock Tainted: G OE 5.19.0-rc7+ #10 [420160.597893] Nombre del hardware: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 19/03/2019 [420160.609894] RIP: 0010:ice_xsk_pool_setup+0x44/0x7d0 [ice] [420160.616968] C\u00f3digo: f3 48 83 ec 40 48 8b 4f 20 48 8b 3f 65 48 8b 04 25 28 00 00 00 48 89 44 24 38 31 c0 48 8d 04 ed 00 00 00 00 48 01 c1 48 8b 11 &lt;0f&gt; b7 92 82 00 00 00 48 85 d2 0f 84 2d 75 00 00 48 8d 72 ff 48 85 [420160.639421] RSP: 0018:ffffc9002d2afd48 EFLAGS: 00010282 [420160.646650] RAX: 0000000000000050 RBX: ffff88811d8bdd00 RCX: ffff888112c14ff8 [420160.655893] RDX: 000000000000000 RSI: ffff88811d8bdd00 RDI: ffff888109861000 [420160.665166] RBP: 000000000000000a R08: 000000000000000a R09: 0000000000000000 [420160.674493] R10: 000000000000889f R11: 0000000000000000 R12: 000000000000000a [420160.683833] R13: 00000000000000a R14: 0000000000000000 R15: ffff888117611828 [420160.693211] FS: 00007fa869fc1f80(0000) GS:ffff8897e0880000(0000) knlGS:0000000000000000 [420160.703645] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [420160.711783] CR2: 000000000000082 CR3: 00000001d076c001 CR4: 00000000007706e0 [420160.721399] DR0: 00000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [420160.731045] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [420160.740707] PKRU: 55555554 [420160.745960] Rastreo de llamadas: [420160.750962] [420160.755597] ? kmalloc_large_node+0x79/0x90 [420160.762703] ? __kmalloc_node+0x3f5/0x4b0 [420160.769341] xp_assign_dev+0xfd/0x210 [420160.775661] ? shmem_file_read_iter+0x29a/0x420 [420160.782896] xsk_bind+0x152/0x490 [420160.788943] __sys_bind+0xd0/0x100 [420160.795097] ? exit_to_user_mode_prepare+0x20/0x120 [420160.802801] __x64_sys_bind+0x16/0x20 [420160.809298] do_syscall_64+0x38/0x90 [420160.815741] entry_SYSCALL_64_after_hwframe+0x63/0xcd [420160.823731] RIP: 0033:0x7fa86a0dd2fb [420160.830264] Code: c3 66 0f 1f 44 00 00 48 8b 15 69 8b 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 0f 1f 44 00 00 f3 0f 1e fa b8 31 00 00 00 0f 05 &lt;48&gt; 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d 8b 0c 00 f7 d8 64 89 01 48 [420160.855410] RSP: 002b:00007ffc1146f618 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [420160.866366] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa86a0dd2fb [420160.876957] RDX: 0000000000000010 RSI: 00007ffc1146f680 RDI: 0000000000000003 [420160.887604] RBP: 000055d7113a0520 R08: 00007fa868fb8000 R09: 0000000080000000 [420160.898293] R10: 0000000000008001 R11: 0000000000000246 R12: 000055d7113a04e0 [420160.909038] R13: 000055d7113a0320 R14: 000000000000000a R15: 0000000000000000 [420160.91 ---truncado---"}], "lastModified": "2025-11-14T16:04:44.827", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A26216A8-920B-4892-A1EB-143451AFFC31", "versionEndExcluding": "5.10.140", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "292F3687-ADC2-4F3D-9710-3BCAD11A52BE", "versionEndExcluding": "5.15.64", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "89E99903-E16D-475D-954B-2BAC46C98262", "versionEndExcluding": "5.19.6", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}