{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-29T16:01:07.608","vulnerabilities":[{"cve":{"id":"CVE-2024-41054","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-07-29T15:15:13.557","lastModified":"2024-11-21T09:32:08.973","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Fix ufshcd_clear_cmd racing issue\n\nWhen ufshcd_clear_cmd is racing with the completion ISR, the completed tag\nof the request's mq_hctx pointer will be set to NULL by the ISR.  And\nufshcd_clear_cmd's call to ufshcd_mcq_req_to_hwq will get NULL pointer KE.\nReturn success when the request is completed by ISR because sq does not\nneed cleanup.\n\nThe racing flow is:\n\nThread A\nufshcd_err_handler\t\t\t\t\tstep 1\n\tufshcd_try_to_abort_task\n\t\tufshcd_cmd_inflight(true)\t\tstep 3\n\t\tufshcd_clear_cmd\n\t\t\t...\n\t\t\tufshcd_mcq_req_to_hwq\n\t\t\tblk_mq_unique_tag\n\t\t\t\trq->mq_hctx->queue_num\tstep 5\n\nThread B\nufs_mtk_mcq_intr(cq complete ISR)\t\t\tstep 2\n\tscsi_done\n\t\t...\n\t\t__blk_mq_free_request\n\t\t\trq->mq_hctx = NULL;\t\tstep 4\n\nBelow is KE back trace:\n\n  ufshcd_try_to_abort_task: cmd pending in the device. tag = 6\n  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000194\n   pc : [0xffffffd589679bf8] blk_mq_unique_tag+0x8/0x14\n   lr : [0xffffffd5862f95b4] ufshcd_mcq_sq_cleanup+0x6c/0x1cc [ufs_mediatek_mod_ise]\n   Workqueue: ufs_eh_wq_0 ufshcd_err_handler [ufs_mediatek_mod_ise]\n   Call trace:\n    dump_backtrace+0xf8/0x148\n    show_stack+0x18/0x24\n    dump_stack_lvl+0x60/0x7c\n    dump_stack+0x18/0x3c\n    mrdump_common_die+0x24c/0x398 [mrdump]\n    ipanic_die+0x20/0x34 [mrdump]\n    notify_die+0x80/0xd8\n    die+0x94/0x2b8\n    __do_kernel_fault+0x264/0x298\n    do_page_fault+0xa4/0x4b8\n    do_translation_fault+0x38/0x54\n    do_mem_abort+0x58/0x118\n    el1_abort+0x3c/0x5c\n    el1h_64_sync_handler+0x54/0x90\n    el1h_64_sync+0x68/0x6c\n    blk_mq_unique_tag+0x8/0x14\n    ufshcd_clear_cmd+0x34/0x118 [ufs_mediatek_mod_ise]\n    ufshcd_try_to_abort_task+0x2c8/0x5b4 [ufs_mediatek_mod_ise]\n    ufshcd_err_handler+0xa7c/0xfa8 [ufs_mediatek_mod_ise]\n    process_one_work+0x208/0x4fc\n    worker_thread+0x228/0x438\n    kthread+0x104/0x1d4\n    ret_from_fork+0x10/0x20"},{"lang":"es","value":"En el kernel de Linux, se resolvió la siguiente vulnerabilidad: scsi: ufs: core: solucione el problema de ejecución de ufshcd_clear_cmd Cuando ufshcd_clear_cmd corre con el ISR de finalización, el ISR establecerá la etiqueta completada del puntero mq_hctx de la solicitud en NULL. Y la llamada de ufshcd_clear_cmd a ufshcd_mcq_req_to_hwq obtendrá un puntero NULL KE. Devuelve el éxito cuando ISR completa la solicitud porque sq no necesita limpieza. El flujo de ejecución es: Hilo A ufshcd_err_handler paso 1 ufshcd_try_to_abort_task ufshcd_cmd_inflight(true) paso 3 ufshcd_clear_cmd ... ufshcd_mcq_req_to_hwq blk_mq_unique_tag rq->mq_hctx->queue_num paso 5 Hilo ufs_mtk_mcq_int r(cq completar ISR) paso 2 scsi_done ... __blk_mq_free_request rq-> mq_hctx = NULO; paso 4 A continuación se muestra el rastreo de KE: ufshcd_try_to_abort_task: cmd pendiente en el dispositivo. etiqueta = 6 No se puede manejar la desreferencia del puntero NULL del kernel en la dirección virtual 0000000000000194 pc: [0xffffffd589679bf8] blk_mq_unique_tag+0x8/0x14 lr: [0xffffffd5862f95b4] ufshcd_mcq_sq_cleanup+0x6c/0x1cc _mod_ise] Cola de trabajo: ufs_eh_wq_0 ufshcd_err_handler [ufs_mediatek_mod_ise] Seguimiento de llamadas: dump_backtrace+0xf8 /0x148 show_stack+0x18/0x24 dump_stack_lvl+0x60/0x7c dump_stack+0x18/0x3c mrdump_common_die+0x24c/0x398 [mrdump] ipanic_die+0x20/0x34 [mrdump] notify_die+0x80/0xd8 die+0x94/0x2b8 __do_kernel_fault+0x264/0x298 do_page_fault+ 0xa4/0x4b8 do_translation_fault+0x38/0x54 do_mem_abort+0x58/0x118 el1_abort+0x3c/0x5c el1h_64_sync_handler+0x54/0x90 el1h_64_sync+0x68/0x6c blk_mq_unique_tag+0x8/0x14 clear_cmd+0x34/0x118 [ufs_mediatek_mod_ise] ufshcd_try_to_abort_task+0x2c8/0x5b4 [ufs_mediatek_mod_ise] ufshcd_err_handler +0xa7c/0xfa8 [ufs_mediatek_mod_ise] process_one_work+0x208/0x4fc trabajador_hilo+0x228/0x438 kthread+0x104/0x1d4 ret_from_fork+0x10/0x20"}],"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-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.6.41","matchCriteriaId":"F8F0E46F-AE23-4E3C-94C2-982292314C2D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.9.10","matchCriteriaId":"AB2E8DEC-CFD5-4C2B-981D-E7E45A36C352"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/11d81233f4ebe6907b12c79ad7d8787aa4db0633","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/9307a998cb9846a2557fdca286997430bee36a2a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/bed0896008334eeee4b4bfd7150491ca098cbf72","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/11d81233f4ebe6907b12c79ad7d8787aa4db0633","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/9307a998cb9846a2557fdca286997430bee36a2a","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/bed0896008334eeee4b4bfd7150491ca098cbf72","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}