{"cve":"CVE-2024-35989","nvd":{"published":"2024-05-20T10:15:13.190","modified":"2026-06-17T07:35:53.550","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix oops during rmmod on single-CPU platforms\n\nDuring the removal of the idxd driver, registered offline callback is\ninvoked as part of the clean up process. However, on systems with only\none CPU online, no valid target is available to migrate the\nperf context, resulting in a kernel oops:\n\n    BUG: unable to handle page fault for address: 000000000002a2b8\n    #PF: supervisor write access in kernel mode\n    #PF: error_code(0x0002) - not-present page\n    PGD 1470e1067 P4D 0\n    Oops: 0002 [#1] PREEMPT SMP NOPTI\n    CPU: 0 PID: 20 Comm: cpuhp/0 Not tainted 6.8.0-rc6-dsa+ #57\n    Hardware name: Intel Corporation AvenueCity/AvenueCity, BIOS BHSDCRB1.86B.2492.D03.2307181620 07/18/2023\n    RIP: 0010:mutex_lock+0x2e/0x50\n    ...\n    Call Trace:\n    <TASK>\n    __die+0x24/0x70\n    page_fault_oops+0x82/0x160\n    do_user_addr_fault+0x65/0x6b0\n    __pfx___rdmsr_safe_on_cpu+0x10/0x10\n    exc_page_fault+0x7d/0x170\n    asm_exc_page_fault+0x26/0x30\n    mutex_lock+0x2e/0x50\n    mutex_lock+0x1e/0x50\n    perf_pmu_migrate_context+0x87/0x1f0\n    perf_event_cpu_offline+0x76/0x90 [idxd]\n    cpuhp_invoke_callback+0xa2/0x4f0\n    __pfx_perf_event_cpu_offline+0x10/0x10 [idxd]\n    cpuhp_thread_fun+0x98/0x150\n    smpboot_thread_fn+0x27/0x260\n    smpboot_thread_fn+0x1af/0x260\n    __pfx_smpboot_thread_fn+0x10/0x10\n    kthread+0x103/0x140\n    __pfx_kthread+0x10/0x10\n    ret_from_fork+0x31/0x50\n    __pfx_kthread+0x10/0x10\n    ret_from_fork_asm+0x1b/0x30\n    <TASK>\n\nFix the issue by preventing the migration of the perf context to an\ninvalid target.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/023b6390a15a98f9c3aa5e7da78d485d5384a08e","https://git.kernel.org/stable/c/47533176fdcef17b114a6f688bc872901c1ec6bb","https://git.kernel.org/stable/c/9edd3aa34d50f27b97be30b2ba4a6af0945ff56b","https://git.kernel.org/stable/c/f221033f5c24659dc6ad7e5cf18fb1b075f4a8be","https://git.kernel.org/stable/c/f976eca36cdf94e32fa4f865db0e7c427c9aa33c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2024-35989","score":0.00214,"percentile":0.11729,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}