{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-35995", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: CPPC: Use access_width over bit_width for system memory accesses\n\nTo align with ACPI 6.3+, since bit_width can be any 8-bit value, it\ncannot be depended on to be always on a clean 8b boundary. This was\nuncovered on the Cobalt 100 platform.\n\nSError Interrupt on CPU26, code 0xbe000011 -- SError\n CPU: 26 PID: 1510 Comm: systemd-udevd Not tainted 5.15.2.1-13 #1\n Hardware name: MICROSOFT CORPORATION, BIOS MICROSOFT CORPORATION\n pstate: 62400009 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)\n pc : cppc_get_perf_caps+0xec/0x410\n lr : cppc_get_perf_caps+0xe8/0x410\n sp : ffff8000155ab730\n x29: ffff8000155ab730 x28: ffff0080139d0038 x27: ffff0080139d0078\n x26: 0000000000000000 x25: ffff0080139d0058 x24: 00000000ffffffff\n x23: ffff0080139d0298 x22: ffff0080139d0278 x21: 0000000000000000\n x20: ffff00802b251910 x19: ffff0080139d0000 x18: ffffffffffffffff\n x17: 0000000000000000 x16: ffffdc7e111bad04 x15: ffff00802b251008\n x14: ffffffffffffffff x13: ffff013f1fd63300 x12: 0000000000000006\n x11: ffffdc7e128f4420 x10: 0000000000000000 x9 : ffffdc7e111badec\n x8 : ffff00802b251980 x7 : 0000000000000000 x6 : ffff0080139d0028\n x5 : 0000000000000000 x4 : ffff0080139d0018 x3 : 00000000ffffffff\n x2 : 0000000000000008 x1 : ffff8000155ab7a0 x0 : 0000000000000000\n Kernel panic - not syncing: Asynchronous SError Interrupt\n CPU: 26 PID: 1510 Comm: systemd-udevd Not tainted\n5.15.2.1-13 #1\n Hardware name: MICROSOFT CORPORATION, BIOS MICROSOFT CORPORATION\n Call trace:\n dump_backtrace+0x0/0x1e0\n show_stack+0x24/0x30\n dump_stack_lvl+0x8c/0xb8\n dump_stack+0x18/0x34\n panic+0x16c/0x384\n add_taint+0x0/0xc0\n arm64_serror_panic+0x7c/0x90\n arm64_is_fatal_ras_serror+0x34/0xa4\n do_serror+0x50/0x6c\n el1h_64_error_handler+0x40/0x74\n el1h_64_error+0x7c/0x80\n cppc_get_perf_caps+0xec/0x410\n cppc_cpufreq_cpu_init+0x74/0x400 [cppc_cpufreq]\n cpufreq_online+0x2dc/0xa30\n cpufreq_add_dev+0xc0/0xd4\n subsys_interface_register+0x134/0x14c\n cpufreq_register_driver+0x1b0/0x354\n cppc_cpufreq_init+0x1a8/0x1000 [cppc_cpufreq]\n do_one_initcall+0x50/0x250\n do_init_module+0x60/0x27c\n load_module+0x2300/0x2570\n __do_sys_finit_module+0xa8/0x114\n __arm64_sys_finit_module+0x2c/0x3c\n invoke_syscall+0x78/0x100\n el0_svc_common.constprop.0+0x180/0x1a0\n do_el0_svc+0x84/0xa0\n el0_svc+0x2c/0xc0\n el0t_64_sync_handler+0xa4/0x12c\n el0t_64_sync+0x1a4/0x1a8\n\nInstead, use access_width to determine the size and use the offset and\nwidth to shift and mask the bits to read/write out. Make sure to add a\ncheck for system memory since pcc redefines the access_width to\nsubspace id.\n\nIf access_width is not set, then fall back to using bit_width.\n\n[ rjw: Subject and changelog edits, comment adjustments ]" } ] }, "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": "4949affd5288" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "5.15.154", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.155", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.159", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.90", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.30", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.8.9", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/4949affd5288b867cdf115f5b08d6166b2027f87", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/4949affd5288b867cdf115f5b08d6166b2027f87" }, { "url": "https://git.kernel.org/stable/c/b54c4632946ae42f2b39ed38abd909bbf78cbcc2", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/b54c4632946ae42f2b39ed38abd909bbf78cbcc2" }, { "url": "https://git.kernel.org/stable/c/6dfd79ed04c578f1d9a9a41ba5b2015cf9f03fc3", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/6dfd79ed04c578f1d9a9a41ba5b2015cf9f03fc3" }, { "url": "https://git.kernel.org/stable/c/01fc53be672acae37e611c80cc0b4f3939584de3", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/01fc53be672acae37e611c80cc0b4f3939584de3" }, { "url": "https://git.kernel.org/stable/c/1b890ae474d19800a6be1696df7fb4d9a41676e4", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/1b890ae474d19800a6be1696df7fb4d9a41676e4" }, { "url": "https://git.kernel.org/stable/c/6cb6b12b78dcd8867a3fdbb1b6d0ed1df2b208d1", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/6cb6b12b78dcd8867a3fdbb1b6d0ed1df2b208d1" }, { "url": "https://git.kernel.org/stable/c/2f4a4d63a193be6fd530d180bb13c3592052904c", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/2f4a4d63a193be6fd530d180bb13c3592052904c" } ] }, "generator": { "engine": "bippy-a5840b7849dd" } }