{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2024-26940", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.197Z", "datePublished": "2024-05-01T05:17:48.607Z", "dateUpdated": "2024-08-02T00:21:05.654Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:25:33.241Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Create debugfs ttm_resource_manager entry only if needed\n\nThe driver creates /sys/kernel/debug/dri/0/mob_ttm even when the\ncorresponding ttm_resource_manager is not allocated.\nThis leads to a crash when trying to read from this file.\n\nAdd a check to create mob_ttm, system_mob_ttm, and gmr_ttm debug file\nonly when the corresponding ttm_resource_manager is allocated.\n\ncrash> bt\nPID: 3133409 TASK: ffff8fe4834a5000 CPU: 3 COMMAND: \"grep\"\n #0 [ffffb954506b3b20] machine_kexec at ffffffffb2a6bec3\n #1 [ffffb954506b3b78] __crash_kexec at ffffffffb2bb598a\n #2 [ffffb954506b3c38] crash_kexec at ffffffffb2bb68c1\n #3 [ffffb954506b3c50] oops_end at ffffffffb2a2a9b1\n #4 [ffffb954506b3c70] no_context at ffffffffb2a7e913\n #5 [ffffb954506b3cc8] __bad_area_nosemaphore at ffffffffb2a7ec8c\n #6 [ffffb954506b3d10] do_page_fault at ffffffffb2a7f887\n #7 [ffffb954506b3d40] page_fault at ffffffffb360116e\n [exception RIP: ttm_resource_manager_debug+0x11]\n RIP: ffffffffc04afd11 RSP: ffffb954506b3df0 RFLAGS: 00010246\n RAX: ffff8fe41a6d1200 RBX: 0000000000000000 RCX: 0000000000000940\n RDX: 0000000000000000 RSI: ffffffffc04b4338 RDI: 0000000000000000\n RBP: ffffb954506b3e08 R8: ffff8fee3ffad000 R9: 0000000000000000\n R10: ffff8fe41a76a000 R11: 0000000000000001 R12: 00000000ffffffff\n R13: 0000000000000001 R14: ffff8fe5bb6f3900 R15: ffff8fe41a6d1200\n ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018\n #8 [ffffb954506b3e00] ttm_resource_manager_show at ffffffffc04afde7 [ttm]\n #9 [ffffb954506b3e30] seq_read at ffffffffb2d8f9f3\n RIP: 00007f4c4eda8985 RSP: 00007ffdbba9e9f8 RFLAGS: 00000246\n RAX: ffffffffffffffda RBX: 000000000037e000 RCX: 00007f4c4eda8985\n RDX: 000000000037e000 RSI: 00007f4c41573000 RDI: 0000000000000003\n RBP: 000000000037e000 R8: 0000000000000000 R9: 000000000037fe30\n R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4c41573000\n R13: 0000000000000003 R14: 00007f4c41572010 R15: 0000000000000003\n ORIG_RAX: 0000000000000000 CS: 0033 SS: 002b" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/vmwgfx/vmwgfx_drv.c" ], "versions": [ { "version": "af4a25bbe5e7", "lessThan": "016119154981", "status": "affected", "versionType": "git" }, { "version": "af4a25bbe5e7", "lessThan": "042ef0afc40f", "status": "affected", "versionType": "git" }, { "version": "af4a25bbe5e7", "lessThan": "25e3ce59c120", "status": "affected", "versionType": "git" }, { "version": "af4a25bbe5e7", "lessThan": "eb08db0fc535", "status": "affected", "versionType": "git" }, { "version": "af4a25bbe5e7", "lessThan": "4be9075fec0a", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/vmwgfx/vmwgfx_drv.c" ], "versions": [ { "version": "5.19", "status": "affected" }, { "version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.84", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.24", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.7.12", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.8.3", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/016119154981d81c9e8f2ea3f56b9e2b4ea14500" }, { "url": "https://git.kernel.org/stable/c/042ef0afc40fa1a22b3608f22915b91ce39d128f" }, { "url": "https://git.kernel.org/stable/c/25e3ce59c1200f1f0563e39de151f34962ab0fe1" }, { "url": "https://git.kernel.org/stable/c/eb08db0fc5354fa17b7ed66dab3c503332423451" }, { "url": "https://git.kernel.org/stable/c/4be9075fec0a639384ed19975634b662bfab938f" } ], "title": "drm/vmwgfx: Create debugfs ttm_resource_manager entry only if needed", "x_generator": { "engine": "bippy-a5840b7849dd" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2024-06-06T18:58:47.194142Z", "id": "CVE-2024-26940", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-06T18:58:55.126Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:21:05.654Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/016119154981d81c9e8f2ea3f56b9e2b4ea14500", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/042ef0afc40fa1a22b3608f22915b91ce39d128f", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/25e3ce59c1200f1f0563e39de151f34962ab0fe1", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/eb08db0fc5354fa17b7ed66dab3c503332423451", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/4be9075fec0a639384ed19975634b662bfab938f", "tags": [ "x_transferred" ] } ] } ] } }