{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-36969", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix division by zero in setup_dsc_config\n\nWhen slice_height is 0, the division by slice_height in the calculation\nof the number of slices will cause a division by zero driver crash. This\nleaves the kernel in a state that requires a reboot. This patch adds a\ncheck to avoid the division by zero.\n\nThe stack trace below is for the 6.8.4 Kernel. I reproduced the issue on\na Z16 Gen 2 Lenovo Thinkpad with a Apple Studio Display monitor\nconnected via Thunderbolt. The amdgpu driver crashed with this exception\nwhen I rebooted the system with the monitor connected.\n\nkernel: ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447)\nkernel: ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154)\nkernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu\nkernel: ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175)\nkernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu\nkernel: ? exc_divide_error (arch/x86/kernel/traps.c:194 (discriminator 2))\nkernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu\nkernel: ? asm_exc_divide_error (./arch/x86/include/asm/idtentry.h:548)\nkernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu\nkernel: dc_dsc_compute_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1109) amdgpu\n\nAfter applying this patch, the driver no longer crashes when the monitor\nis connected and the system is rebooted. I believe this is the same\nissue reported for 3113." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "1da177e4c3f4", "version_value": "a32c8f951c8a" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "5.15.160", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.92", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.32", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.8.11", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.9.2", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.10", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/a32c8f951c8a456c1c251e1dcdf21787f8066445", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/a32c8f951c8a456c1c251e1dcdf21787f8066445" }, { "url": "https://git.kernel.org/stable/c/91402e0e5de9124a3108db7a14163fcf9a6d322f", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/91402e0e5de9124a3108db7a14163fcf9a6d322f" }, { "url": "https://git.kernel.org/stable/c/7e4f50dfc98c49b3dc6875a35c3112522fb25639", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/7e4f50dfc98c49b3dc6875a35c3112522fb25639" }, { "url": "https://git.kernel.org/stable/c/f187fcbbb8f8bf10c6687f0beae22509369f7563", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/f187fcbbb8f8bf10c6687f0beae22509369f7563" }, { "url": "https://git.kernel.org/stable/c/308de6be0c9c7ba36915c0d398e771725c0ea911", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/308de6be0c9c7ba36915c0d398e771725c0ea911" }, { "url": "https://git.kernel.org/stable/c/130afc8a886183a94cf6eab7d24f300014ff87ba", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/130afc8a886183a94cf6eab7d24f300014ff87ba" } ] }, "generator": { "engine": "bippy-c9c4e1df01b2" } }