CVE-2022-48662

{"id": "CVE-2022-48662", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2024-04-28T13:15:07.937", "references": [{"url": "https://git.kernel.org/stable/c/713fa3e4591f65f804bdc88e8648e219fabc9ee1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d119888b09bd567e07c6b93a07f175df88857e02", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f799e0568d6c153368b177e0bbbde7dcc4ce7f1d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/713fa3e4591f65f804bdc88e8648e219fabc9ee1", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/d119888b09bd567e07c6b93a07f175df88857e02", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/f799e0568d6c153368b177e0bbbde7dcc4ce7f1d", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-119"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gem: Really move i915_gem_context.link under ref protection\n\ni915_perf assumes that it can use the i915_gem_context reference to\nprotect its i915->gem.contexts.list iteration. However, this requires\nthat we do not remove the context from the list until after we drop the\nfinal reference and release the struct. If, as currently, we remove the\ncontext from the list during context_close(), the link.next pointer may\nbe poisoned while we are holding the context reference and cause a GPF:\n\n[ 4070.573157] i915 0000:00:02.0: [drm:i915_perf_open_ioctl [i915]] filtering on ctx_id=0x1fffff ctx_id_mask=0x1fffff\n[ 4070.574881] general protection fault, probably for non-canonical address 0xdead000000000100: 0000 [#1] PREEMPT SMP\n[ 4070.574897] CPU: 1 PID: 284392 Comm: amd_performance Tainted: G E 5.17.9 #180\n[ 4070.574903] Hardware name: Intel Corporation NUC7i5BNK/NUC7i5BNB, BIOS BNKBL357.86A.0052.2017.0918.1346 09/18/2017\n[ 4070.574907] RIP: 0010:oa_configure_all_contexts.isra.0+0x222/0x350 [i915]\n[ 4070.574982] Code: 08 e8 32 6e 10 e1 4d 8b 6d 50 b8 ff ff ff ff 49 83 ed 50 f0 41 0f c1 04 24 83 f8 01 0f 84 e3 00 00 00 85 c0 0f 8e fa 00 00 00 <49> 8b 45 50 48 8d 70 b0 49 8d 45 50 48 39 44 24 10 0f 85 34 fe ff\n[ 4070.574990] RSP: 0018:ffffc90002077b78 EFLAGS: 00010202\n[ 4070.574995] RAX: 0000000000000002 RBX: 0000000000000002 RCX: 0000000000000000\n[ 4070.575000] RDX: 0000000000000001 RSI: ffffc90002077b20 RDI: ffff88810ddc7c68\n[ 4070.575004] RBP: 0000000000000001 R08: ffff888103242648 R09: fffffffffffffffc\n[ 4070.575008] R10: ffffffff82c50bc0 R11: 0000000000025c80 R12: ffff888101bf1860\n[ 4070.575012] R13: dead0000000000b0 R14: ffffc90002077c04 R15: ffff88810be5cabc\n[ 4070.575016] FS: 00007f1ed50c0780(0000) GS:ffff88885ec80000(0000) knlGS:0000000000000000\n[ 4070.575021] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 4070.575025] CR2: 00007f1ed5590280 CR3: 000000010ef6f005 CR4: 00000000003706e0\n[ 4070.575029] Call Trace:\n[ 4070.575033] <TASK>\n[ 4070.575037] lrc_configure_all_contexts+0x13e/0x150 [i915]\n[ 4070.575103] gen8_enable_metric_set+0x4d/0x90 [i915]\n[ 4070.575164] i915_perf_open_ioctl+0xbc0/0x1500 [i915]\n[ 4070.575224] ? asm_common_interrupt+0x1e/0x40\n[ 4070.575232] ? i915_oa_init_reg_state+0x110/0x110 [i915]\n[ 4070.575290] drm_ioctl_kernel+0x85/0x110\n[ 4070.575296] ? update_load_avg+0x5f/0x5e0\n[ 4070.575302] drm_ioctl+0x1d3/0x370\n[ 4070.575307] ? i915_oa_init_reg_state+0x110/0x110 [i915]\n[ 4070.575382] ? gen8_gt_irq_handler+0x46/0x130 [i915]\n[ 4070.575445] __x64_sys_ioctl+0x3c4/0x8d0\n[ 4070.575451] ? __do_softirq+0xaa/0x1d2\n[ 4070.575456] do_syscall_64+0x35/0x80\n[ 4070.575461] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ 4070.575467] RIP: 0033:0x7f1ed5c10397\n[ 4070.575471] Code: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a9 da 0d 00 f7 d8 64 89 01 48\n[ 4070.575478] RSP: 002b:00007ffd65c8d7a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\n[ 4070.575484] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f1ed5c10397\n[ 4070.575488] RDX: 00007ffd65c8d7c0 RSI: 0000000040106476 RDI: 0000000000000006\n[ 4070.575492] RBP: 00005620972f9c60 R08: 000000000000000a R09: 0000000000000005\n[ 4070.575496] R10: 000000000000000d R11: 0000000000000246 R12: 000000000000000a\n[ 4070.575500] R13: 000000000000000d R14: 0000000000000000 R15: 00007ffd65c8d7c0\n[ 4070.575505] </TASK>\n[ 4070.575507] Modules linked in: nls_ascii(E) nls_cp437(E) vfat(E) fat(E) i915(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) aesni_intel(E) crypto_simd(E) intel_gtt(E) cryptd(E) ttm(E) rapl(E) intel_cstate(E) drm_kms_helper(E) cfbfillrect(E) syscopyarea(E) cfbimgblt(E) intel_uncore(E) sysfillrect(E) mei_me(E) sysimgblt(E) i2c_i801(E) fb_sys_fops(E) mei(E) intel_pch_thermal(E) i2c_smbus\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/i915/gem: realmente mueva i915_gem_context.link bajo protecci\u00f3n de referencia. i915_perf supone que puede usar la referencia i915_gem_context para proteger su iteraci\u00f3n i915-&gt;gem.contexts.list. Sin embargo, esto requiere que no eliminemos el contexto de la lista hasta que eliminemos la referencia final y liberemos la estructura. Si, como actualmente, eliminamos el contexto de la lista durante context_close(), el puntero link.next puede envenenarse mientras mantenemos la referencia de contexto y provocar un GPF: [ 4070.573157] i915 0000:00:02.0: [drm: i915_perf_open_ioctl [i915]] filtrado en ctx_id=0x1fffff ctx_id_mask=0x1fffff [4070.574881] falla de protecci\u00f3n general, probablemente para direcci\u00f3n no can\u00f3nica 0xdead000000000100: 0000 [#1] PREEMPT SMP [ 4070.574897] : 1 PID: 284392 Comunicaciones: AMD_Performance Contaminado: GE 5.17.9 #180 [ 4070.574903] Nombre del hardware: Intel Corporation NUC7i5BNK/NUC7i5BNB, BIOS BNKBL357.86A.0052.2017.0918.1346 18/09/2017 [ 4070.574907] RIP: oa_configure_all_contexts.is ra.0+0x222/0x350 [i915] [ 4070.574982] C\u00f3digo: 08 e8 32 6e 10 e1 4d 8b 6d 50 b8 ff ff ff ff 49 83 ed 50 f0 41 0f c1 04 24 83 f8 01 0f 84 e3 00 00 00 85 c0 0f 8e fa 00 00 &lt;49&gt; 8b 45 50 48 8d 70 b0 49 8d 45 50 48 39 44 24 10 0f 85 34 fe ff [ 4070.574990] RSP: 0018:ffffc90002077b78 EFLAGS: 00010202 [ 4070.574995] : 0000000000000002 RBX: 0000000000000002 RCX: 0000000000000000 [ 4070.575000] RDX: 0000000000000001 RSI : ffffc90002077b20 RDI: ffff88810ddc7c68 [ 4070.575004] RBP: 0000000000000001 R08: ffff888103242648 R09: ffffffffffffffc [ 4070.575008] R10: 2c50bc0 R11: 0000000000025c80 R12: ffff888101bf1860 [ 4070.575012] R13: muerto0000000000b0 R14: ffffc90002077c04 R15: ffff88810be5cabc [ 4070.57501 6]FS: 00007f1ed50c0780(0000) GS:ffff88885ec80000(0000) knlGS:0000000000000000 [ 4070.575021] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4070.575025] CR2: 5590280 CR3: 000000010ef6f005 CR4: 00000000003706e0 [ 4070.575029] Seguimiento de llamadas: [ 4070.575033] [ 4070.575037 ] lrc_configure_all_contexts+0x13e/0x150 [i915] [ 4070.575103] gen8_enable_metric_set+0x4d/0x90 [i915] [ 4070.575164] i915_perf_open_ioctl+0xbc0/0x1500 [i915] [ 4070.5 75224] ? asm_common_interrupt+0x1e/0x40 [4070.575232]? i915_oa_init_reg_state+0x110/0x110 [i915] [ 4070.575290] drm_ioctl_kernel+0x85/0x110 [ 4070.575296] ? update_load_avg+0x5f/0x5e0 [ 4070.575302] drm_ioctl+0x1d3/0x370 [ 4070.575307] ? i915_oa_init_reg_state+0x110/0x110 [i915] [4070.575382]? gen8_gt_irq_handler+0x46/0x130 [i915] [ 4070.575445] __x64_sys_ioctl+0x3c4/0x8d0 [ 4070.575451] ? __do_softirq+0xaa/0x1d2 [ 4070.575456] do_syscall_64+0x35/0x80 [ 4070.575461] Entry_SYSCALL_64_after_hwframe+0x44/0xae [ 4070.575467] RIP: 0x7f1ed5c10397 [ 4070.575471] C\u00f3digo: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 &lt;48&gt; 3d 01 f0 ff ff 73 01 c3 48 8b 0d a9 da 0d 00 f7 d8 64 89 01 48 [ 4070.575478] RSP: 002b:00007ffd65c8d7a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 4070.575484] RAX: ffffffffffffffda RBX: 0000000000000006 X: 00007f1ed5c10397 [ 4070.575488] RDX: 00007ffd65c8d7c0 RSI: 0000000040106476 RDI: 0000000000000006 [ 4070.575492] RBP: 00005620972f9c 60 R08: 000000000000000a R09: 0000000000000005 [ 4070.575496] R10: 000000000000000d R11: 0000000000000246 R12: 000000000000000a [ 4070.575500] R13: 000000000000000d R14: 0000000000 R15: 00007ffd65c8d7c0 [ 4070.575505] [ 4070.575507] M\u00f3dulos vinculados en: nls_ascii(E) nls_cp437(E) vfat(E) fat(E) i915(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) aesni_intel(E) crypto_simd(E) intel_gtt(E) cryptd(E) ttm(E) rapl( E) intel_cstate(E) drm_kms_helper(E) cfbfillrect(E) syscopyarea(E) cfbimgblt(E) intel_uncore(E) sysfillrect(E) mei_me(E) sysimgblt(E) i2c_i801(E) fb_sys_fops(E) mei(E) intel_pch_thermal(E) i2c_smbus ---truncado---"}], "lastModified": "2024-11-21T07:33:43.523", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3F984402-E73E-45D6-8C8B-63CD112C18C4", "versionEndExcluding": "5.15.72", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "03B0F56B-C5CC-4E81-BB51-D07D569DE4CA", "versionEndExcluding": "5.19.12", "versionStartIncluding": "5.16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}