{ "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-2024-53687", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-53687", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2025-01-11T12:29:50.589Z", "updatedAt": "2026-05-11T20:53:40.981Z", "importedAt": "2026-10-24T01:57:20.494Z", "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": "riscv: Fix IPIs usage in kfence_protect_page()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Fix IPIs usage in kfence_protect_page()\n\nflush_tlb_kernel_range() may use IPIs to flush the TLBs of all the\ncores, which triggers the following warning when the irqs are disabled:\n\n[ 3.455330] WARNING: CPU: 1 PID: 0 at kernel/smp.c:815 smp_call_function_many_cond+0x452/0x520\n[ 3.456647] Modules linked in:\n[ 3.457218] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-rc7-00010-g91d3de7240b8 #1\n[ 3.457416] Hardware name: QEMU QEMU Virtual Machine, BIOS\n[ 3.457633] epc : smp_call_function_many_cond+0x452/0x520\n[ 3.457736] ra : on_each_cpu_cond_mask+0x1e/0x30\n[ 3.457786] epc : ffffffff800b669a ra : ffffffff800b67c2 sp : ff2000000000bb50\n[ 3.457824] gp : ffffffff815212b8 tp : ff6000008014f080 t0 : 000000000000003f\n[ 3.457859] t1 : ffffffff815221e0 t2 : 000000000000000f s0 : ff2000000000bc10\n[ 3.457920] s1 : 0000000000000040 a0 : ffffffff815221e0 a1 : 0000000000000001\n[ 3.457953] a2 : 0000000000010000 a3 : 0000000000000003 a4 : 0000000000000000\n[ 3.458006] a5 : 0000000000000000 a6 : ffffffffffffffff a7 : 0000000000000000\n[ 3.458042] s2 : ffffffff815223be s3 : 00fffffffffff000 s4 : ff600001ffe38fc0\n[ 3.458076] s5 : ff600001ff950d00 s6 : 0000000200000120 s7 : 0000000000000001\n[ 3.458109] s8 : 0000000000000001 s9 : ff60000080841ef0 s10: 0000000000000001\n[ 3.458141] s11: ffffffff81524812 t3 : 0000000000000001 t4 : ff60000080092bc0\n[ 3.458172] t5 : 0000000000000000 t6 : ff200000000236d0\n[ 3.458203] status: 0000000200000100 badaddr: ffffffff800b669a cause: 0000000000000003\n[ 3.458373] [] smp_call_function_many_cond+0x452/0x520\n[ 3.458593] [] on_each_cpu_cond_mask+0x1e/0x30\n[ 3.458625] [] __flush_tlb_range+0x118/0x1ca\n[ 3.458656] [] flush_tlb_kernel_range+0x1e/0x26\n[ 3.458683] [] kfence_protect+0xc0/0xce\n[ 3.458717] [] kfence_guarded_free+0xc6/0x1c0\n[ 3.458742] [] __kfence_free+0x62/0xc6\n[ 3.458764] [] kfree+0x106/0x32c\n[ 3.458786] [] detach_buf_split+0x188/0x1a8\n[ 3.458816] [] virtqueue_get_buf_ctx+0xb6/0x1f6\n[ 3.458839] [] virtqueue_get_buf+0xe/0x16\n[ 3.458880] [] virtblk_done+0x5c/0xe2\n[ 3.458908] [] vring_interrupt+0x6a/0x74\n[ 3.458930] [] __handle_irq_event_percpu+0x7c/0xe2\n[ 3.458956] [] handle_irq_event+0x3c/0x86\n[ 3.458978] [] handle_simple_irq+0x9e/0xbe\n[ 3.459004] [] generic_handle_domain_irq+0x1c/0x2a\n[ 3.459027] [] imsic_handle_irq+0xba/0x120\n[ 3.459056] [] generic_handle_domain_irq+0x1c/0x2a\n[ 3.459080] [] riscv_intc_aia_irq+0x24/0x34\n[ 3.459103] [] handle_riscv_irq+0x2e/0x4c\n[ 3.459133] [] call_on_irq_stack+0x32/0x40\n\nSo only flush the local TLB and let the lazy kfence page fault handling\ndeal with the faults which could happen when a core has an old protected\npte version cached in its TLB. That leads to potential inaccuracies which\ncan be tolerated when using kfence.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "47513f243b452a5e21180dcf3d6ac1c57e1781a6", "status": "affected", "versionType": "git", "lessThan": "6f796a6a396d6f963f2cc8f5edd7dfba2cca097f" }, { "version": "47513f243b452a5e21180dcf3d6ac1c57e1781a6", "status": "affected", "versionType": "git", "lessThan": "3abfc4130c4222099c69d023fed97f1180a8ad7b" }, { "version": "47513f243b452a5e21180dcf3d6ac1c57e1781a6", "status": "affected", "versionType": "git", "lessThan": "b3431a8bb336cece8adc452437befa7d4534b2fd" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.14", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.14" }, { "version": "6.6.67", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.6", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.13", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }