{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-03T00:29:46.445","vulnerabilities":[{"cve":{"id":"CVE-2026-23217","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2026-02-18T15:18:43.080","lastModified":"2026-03-18T17:36:43.673","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: trace: fix snapshot deadlock with sbi ecall\n\nIf sbi_ecall.c's functions are traceable,\n\necho \"__sbi_ecall:snapshot\" > /sys/kernel/tracing/set_ftrace_filter\n\nmay get the kernel into a deadlock.\n\n(Functions in sbi_ecall.c are excluded from tracing if\nCONFIG_RISCV_ALTERNATIVE_EARLY is set.)\n\n__sbi_ecall triggers a snapshot of the ringbuffer. The snapshot code\nraises an IPI interrupt, which results in another call to __sbi_ecall\nand another snapshot...\n\nAll it takes to get into this endless loop is one initial __sbi_ecall.\nOn RISC-V systems without SSTC extension, the clock events in\ntimer-riscv.c issue periodic sbi ecalls, making the problem easy to\ntrigger.\n\nAlways exclude the sbi_ecall.c functions from tracing to fix the\npotential deadlock.\n\nsbi ecalls can easiliy be logged via trace events, excluding ecall\nfunctions from function tracing is not a big limitation."},{"lang":"es","value":"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nriscv: trace: corregir interbloqueo de instantánea con sbi ecall\n\nSi las funciones de sbi_ecall.c son rastreables,\n\necho '__sbi_ecall:snapshot' > /sys/kernel/tracing/set_ftrace_filter\n\npuede llevar al kernel a un interbloqueo.\n\n(Las funciones en sbi_ecall.c se excluyen del rastreo si CONFIG_RISCV_ALTERNATIVE_EARLY está configurado.)\n\n__sbi_ecall activa una instantánea del ringbuffer. El código de la instantánea genera una interrupción IPI, lo que resulta en otra llamada a __sbi_ecall y otra instantánea...\n\nTodo lo que se necesita para entrar en este bucle infinito es una __sbi_ecall inicial. En sistemas RISC-V sin la extensión SSTC, los eventos de reloj en timer-riscv.c emiten sbi ecalls periódicas, haciendo que el problema sea fácil de activar.\n\nExcluir siempre las funciones de sbi_ecall.c del rastreo para corregir el interbloqueo potencial.\n\nLas sbi ecalls pueden registrarse fácilmente a través de eventos de rastreo, excluir las funciones ecall del rastreo de funciones no es una gran limitación."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-667"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10.10","versionEndExcluding":"6.11","matchCriteriaId":"20B10614-CE0D-494A-9FEA-F01A6985C9B7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11.1","versionEndExcluding":"6.18.10","matchCriteriaId":"EA8A5D78-6E70-4B4A-802B-44FFB0543B56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:-:*:*:*:*:*:*","matchCriteriaId":"4770BA57-3F3F-493B-8608-EC3B25254949"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc7:*:*:*:*:*:*","matchCriteriaId":"DE5298B3-04B4-4F3E-B186-01A58B5C75A6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*","matchCriteriaId":"17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*","matchCriteriaId":"C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*","matchCriteriaId":"F71D92C0-C023-48BD-B3B6-70B638EEE298"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*","matchCriteriaId":"13580667-0A98-40CC-B29F-D12790B91BDB"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b0d7f5f0c9f05f1b6d4ee7110f15bef9c11f9df0","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b1f8285bc8e3508c1fde23b5205f1270215d4984","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}