{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-53687", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-01-09T09:49:29.686Z", "datePublished": "2025-01-11T12:29:50.589Z", "dateUpdated": "2026-05-11T20:53:40.981Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:53:40.981Z" }, "descriptions": [ { "lang": "en", "value": "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": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/riscv/include/asm/kfence.h" ], "versions": [ { "version": "47513f243b452a5e21180dcf3d6ac1c57e1781a6", "lessThan": "6f796a6a396d6f963f2cc8f5edd7dfba2cca097f", "status": "affected", "versionType": "git" }, { "version": "47513f243b452a5e21180dcf3d6ac1c57e1781a6", "lessThan": "3abfc4130c4222099c69d023fed97f1180a8ad7b", "status": "affected", "versionType": "git" }, { "version": "47513f243b452a5e21180dcf3d6ac1c57e1781a6", "lessThan": "b3431a8bb336cece8adc452437befa7d4534b2fd", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/riscv/include/asm/kfence.h" ], "versions": [ { "version": "5.14", "status": "affected" }, { "version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.67", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.6", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.6.67" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.12.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.13" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/6f796a6a396d6f963f2cc8f5edd7dfba2cca097f" }, { "url": "https://git.kernel.org/stable/c/3abfc4130c4222099c69d023fed97f1180a8ad7b" }, { "url": "https://git.kernel.org/stable/c/b3431a8bb336cece8adc452437befa7d4534b2fd" } ], "title": "riscv: Fix IPIs usage in kfence_protect_page()", "x_generator": { "engine": "bippy-1.2.0" } } } }