{"cve":"CVE-2023-52559","nvd":{"published":"2024-03-02T22:15:48.700","modified":"2026-06-17T06:43:01.467","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Avoid memory allocation in iommu_suspend()\n\nThe iommu_suspend() syscore suspend callback is invoked with IRQ disabled.\nAllocating memory with the GFP_KERNEL flag may re-enable IRQs during\nthe suspend callback, which can cause intermittent suspend/hibernation\nproblems with the following kernel traces:\n\nCalling iommu_suspend+0x0/0x1d0\n------------[ cut here ]------------\nWARNING: CPU: 0 PID: 15 at kernel/time/timekeeping.c:868 ktime_get+0x9b/0xb0\n...\nCPU: 0 PID: 15 Comm: rcu_preempt Tainted: G     U      E      6.3-intel #r1\nRIP: 0010:ktime_get+0x9b/0xb0\n...\nCall Trace:\n <IRQ>\n tick_sched_timer+0x22/0x90\n ? __pfx_tick_sched_timer+0x10/0x10\n __hrtimer_run_queues+0x111/0x2b0\n hrtimer_interrupt+0xfa/0x230\n __sysvec_apic_timer_interrupt+0x63/0x140\n sysvec_apic_timer_interrupt+0x7b/0xa0\n </IRQ>\n <TASK>\n asm_sysvec_apic_timer_interrupt+0x1f/0x30\n...\n------------[ cut here ]------------\nInterrupts enabled after iommu_suspend+0x0/0x1d0\nWARNING: CPU: 0 PID: 27420 at drivers/base/syscore.c:68 syscore_suspend+0x147/0x270\nCPU: 0 PID: 27420 Comm: rtcwake Tainted: G     U  W   E      6.3-intel #r1\nRIP: 0010:syscore_suspend+0x147/0x270\n...\nCall Trace:\n <TASK>\n hibernation_snapshot+0x25b/0x670\n hibernate+0xcd/0x390\n state_store+0xcf/0xe0\n kobj_attr_store+0x13/0x30\n sysfs_kf_write+0x3f/0x50\n kernfs_fop_write_iter+0x128/0x200\n vfs_write+0x1fd/0x3c0\n ksys_write+0x6f/0xf0\n __x64_sys_write+0x1d/0x30\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nGiven that only 4 words memory is needed, avoid the memory allocation in\niommu_suspend().","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/29298c85a81abdc512e87537515ed4b1a9601d0e","https://git.kernel.org/stable/c/496c591f0b389eb782f36d9d4c2564b9a865eed0","https://git.kernel.org/stable/c/59df44bfb0ca4c3ee1f1c3c5d0ee8e314844799e","https://git.kernel.org/stable/c/c12ef025add77ca3a0902e8719d552b6d47b4282","https://git.kernel.org/stable/c/29298c85a81abdc512e87537515ed4b1a9601d0e"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:46:54.846886191+00:00"},"epss":{"cve":"CVE-2023-52559","score":0.00224,"percentile":0.13061,"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."]}