{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53563", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53563", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-10-04T15:17:06.340Z", "updatedAt": "2026-05-11T19:47:23.424Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "cpufreq: amd-pstate-ut: Fix kernel panic when loading the driver", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: amd-pstate-ut: Fix kernel panic when loading the driver\n\nAfter loading the amd-pstate-ut driver, amd_pstate_ut_check_perf()\nand amd_pstate_ut_check_freq() use cpufreq_cpu_get() to get the policy\nof the CPU and mark it as busy.\n\nIn these functions, cpufreq_cpu_put() should be used to release the\npolicy, but it is not, so any other entity trying to access the policy\nis blocked indefinitely.\n\nOne such scenario is when amd_pstate mode is changed, leading to the\nfollowing splat:\n\n[ 1332.103727] INFO: task bash:2929 blocked for more than 120 seconds.\n[ 1332.110001] Not tainted 6.5.0-rc2-amd-pstate-ut #5\n[ 1332.115315] \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n[ 1332.123140] task:bash state:D stack:0 pid:2929 ppid:2873 flags:0x00004006\n[ 1332.123143] Call Trace:\n[ 1332.123145] \n[ 1332.123148] __schedule+0x3c1/0x16a0\n[ 1332.123154] ? _raw_read_lock_irqsave+0x2d/0x70\n[ 1332.123157] schedule+0x6f/0x110\n[ 1332.123160] schedule_timeout+0x14f/0x160\n[ 1332.123162] ? preempt_count_add+0x86/0xd0\n[ 1332.123165] __wait_for_common+0x92/0x190\n[ 1332.123168] ? __pfx_schedule_timeout+0x10/0x10\n[ 1332.123170] wait_for_completion+0x28/0x30\n[ 1332.123173] cpufreq_policy_put_kobj+0x4d/0x90\n[ 1332.123177] cpufreq_policy_free+0x157/0x1d0\n[ 1332.123178] ? preempt_count_add+0x58/0xd0\n[ 1332.123180] cpufreq_remove_dev+0xb6/0x100\n[ 1332.123182] subsys_interface_unregister+0x114/0x120\n[ 1332.123185] ? preempt_count_add+0x58/0xd0\n[ 1332.123187] ? __pfx_amd_pstate_change_driver_mode+0x10/0x10\n[ 1332.123190] cpufreq_unregister_driver+0x3b/0xd0\n[ 1332.123192] amd_pstate_change_driver_mode+0x1e/0x50\n[ 1332.123194] store_status+0xe9/0x180\n[ 1332.123197] dev_attr_store+0x1b/0x30\n[ 1332.123199] sysfs_kf_write+0x42/0x50\n[ 1332.123202] kernfs_fop_write_iter+0x143/0x1d0\n[ 1332.123204] vfs_write+0x2df/0x400\n[ 1332.123208] ksys_write+0x6b/0xf0\n[ 1332.123210] __x64_sys_write+0x1d/0x30\n[ 1332.123213] do_syscall_64+0x60/0x90\n[ 1332.123216] ? fpregs_assert_state_consistent+0x2e/0x50\n[ 1332.123219] ? exit_to_user_mode_prepare+0x49/0x1a0\n[ 1332.123223] ? irqentry_exit_to_user_mode+0xd/0x20\n[ 1332.123225] ? irqentry_exit+0x3f/0x50\n[ 1332.123226] ? exc_page_fault+0x8e/0x190\n[ 1332.123228] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[ 1332.123232] RIP: 0033:0x7fa74c514a37\n[ 1332.123234] RSP: 002b:00007ffe31dd0788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\n[ 1332.123238] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fa74c514a37\n[ 1332.123239] RDX: 0000000000000008 RSI: 000055e27c447aa0 RDI: 0000000000000001\n[ 1332.123241] RBP: 000055e27c447aa0 R08: 00007fa74c5d1460 R09: 000000007fffffff\n[ 1332.123242] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008\n[ 1332.123244] R13: 00007fa74c61a780 R14: 00007fa74c616600 R15: 00007fa74c615a00\n[ 1332.123247] \n\nFix this by calling cpufreq_cpu_put() wherever necessary.\n\n[ rjw: Subject and changelog edits ]", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015", "status": "affected", "versionType": "git", "lessThan": "fcf78a17bbb94bebaa912f0460a1848f7d374c94" }, { "version": "14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015", "status": "affected", "versionType": "git", "lessThan": "84857640c67405eed258c461b3ef909002f1e201" }, { "version": "14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015", "status": "affected", "versionType": "git", "lessThan": "0f74f12ee042fd72e45f0e8700e063c84ef3883b" }, { "version": "14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015", "status": "affected", "versionType": "git", "lessThan": "60dd283804479c4a52f995b713f448e2cd65b8c8" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.1", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.1" }, { "version": "6.1.53", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.4.16", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.4.*" }, { "version": "6.5.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.5.*" }, { "version": "6.6", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }