{ "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-2023-53216", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53216", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-09-15T14:21:43.935Z", "updatedAt": "2026-08-05T09:13:08.599Z", "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": "arm64: efi: Make efi_rt_lock a raw_spinlock", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: efi: Make efi_rt_lock a raw_spinlock\n\nRunning a rt-kernel base on 6.2.0-rc3-rt1 on an Ampere Altra outputs\nthe following:\n BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:46\n in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 9, name: kworker/u320:0\n preempt_count: 2, expected: 0\n RCU nest depth: 0, expected: 0\n 3 locks held by kworker/u320:0/9:\n #0: ffff3fff8c27d128 ((wq_completion)efi_rts_wq){+.+.}-{0:0}, at: process_one_work (./include/linux/atomic/atomic-long.h:41)\n #1: ffff80000861bdd0 ((work_completion)(&efi_rts_work.work)){+.+.}-{0:0}, at: process_one_work (./include/linux/atomic/atomic-long.h:41)\n #2: ffffdf7e1ed3e460 (efi_rt_lock){+.+.}-{3:3}, at: efi_call_rts (drivers/firmware/efi/runtime-wrappers.c:101)\n Preemption disabled at:\n efi_virtmap_load (./arch/arm64/include/asm/mmu_context.h:248)\n CPU: 0 PID: 9 Comm: kworker/u320:0 Tainted: G W 6.2.0-rc3-rt1\n Hardware name: WIWYNN Mt.Jade Server System B81.03001.0005/Mt.Jade Motherboard, BIOS 1.08.20220218 (SCP: 1.08.20220218) 2022/02/18\n Workqueue: efi_rts_wq efi_call_rts\n Call trace:\n dump_backtrace (arch/arm64/kernel/stacktrace.c:158)\n show_stack (arch/arm64/kernel/stacktrace.c:165)\n dump_stack_lvl (lib/dump_stack.c:107 (discriminator 4))\n dump_stack (lib/dump_stack.c:114)\n __might_resched (kernel/sched/core.c:10134)\n rt_spin_lock (kernel/locking/rtmutex.c:1769 (discriminator 4))\n efi_call_rts (drivers/firmware/efi/runtime-wrappers.c:101)\n [...]\n\nThis seems to come from commit ff7a167961d1 (\"arm64: efi: Execute\nruntime services from a dedicated stack\") which adds a spinlock. This\nspinlock is taken through:\nefi_call_rts()\n\\-efi_call_virt()\n \\-efi_call_virt_pointer()\n \\-arch_efi_call_virt_setup()\n\nMake 'efi_rt_lock' a raw_spinlock to avoid being preempted.\n\n[ardb: The EFI runtime services are called with a different set of\n translation tables, and are permitted to use the SIMD registers.\n The context switch code preserves/restores neither, and so EFI\n calls must be made with preemption disabled, rather than only\n disabling migration.]", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "4012603cbd469223f225637d265a233f034c567a", "status": "affected", "versionType": "git", "lessThan": "030b1c4217a4f504c7d0795a2bd86b7181e56f11" }, { "version": "de2af657cab92afc13a4ccd8780370481ed0eb61", "status": "affected", "versionType": "git", "lessThan": "6a72729ed6accc86dad5522895e8fa2f96642a2c" }, { "version": "f75a91c82dc805af8f718ff106ec9c090234b37b", "status": "affected", "versionType": "git", "lessThan": "8b38969fa01662ec539a0d08a8ea5ec6f31fa4ed" }, { "version": "ff7a167961d1b97e0e205f245f806e564d3505e7", "status": "affected", "versionType": "git", "lessThan": "4e8f7d998b582a99aadedd07ae6086e99b89c97a" }, { "version": "ff7a167961d1b97e0e205f245f806e564d3505e7", "status": "affected", "versionType": "git", "lessThan": "0e68b5517d3767562889f1d83fdb828c26adb24f" }, { "version": "5.10.165", "status": "affected", "versionType": "semver", "lessThan": "5.10.175" }, { "version": "5.15.90", "status": "affected", "versionType": "semver", "lessThan": "5.15.103" }, { "version": "6.1.8", "status": "affected", "versionType": "semver", "lessThan": "6.1.18" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.2", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.2" }, { "version": "5.10.175", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.103", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.18", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2.5", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }