{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"MEDIUM" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"In the Linux kernel, the following vulnerability has been resolved:scsi: ufs: core: Fix ufshcd_clear_cmd racing issueWhen ufshcd_clear_cmd is racing with the completion ISR, the completed tagof the request s mq_hctx pointer will be set to NULL by the ISR. Andufshcd_clear_cmd s call to ufshcd_mcq_req_to_hwq will get NULL pointer KE.Return success when the request is completed by ISR because sq does notneed cleanup.The racing flow is:Thread Aufshcd_err_handler step 1 ufshcd_try_to_abort_task ufshcd_cmd_inflight(true) step 3 ufshcd_clear_cmd ... ufshcd_mcq_req_to_hwq blk_mq_unique_tag rq->mq_hctx->queue_num step 5Thread Bufs_mtk_mcq_intr(cq complete ISR) step 2 scsi_done ... __blk_mq_free_request rq->mq_hctx = NULL; step 4Below is KE back trace: ufshcd_try_to_abort_task: cmd pending in the device. tag = 6 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000194 pc : [0xffffffd589679bf8] blk_mq_unique_tag+0x8/0x14 lr : [0xffffffd5862f95b4] ufshcd_mcq_sq_cleanup+0x6c/0x1cc [ufs_mediatek_mod_ise] Workqueue: ufs_eh_wq_0 ufshcd_err_handler [ufs_mediatek_mod_ise] Call trace: 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 ufshcd_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 worker_thread+0x228/0x438 kthread+0x104/0x1d4 ret_from_fork+0x10/0x20", "category":"general", "title":"Synopsis" } ], "publisher":{ "issuing_authority":"openEuler security committee", "name":"openEuler", "namespace":"https://www.openeuler.org", "contact_details":"openeuler-security@openeuler.org", "category":"vendor" }, "references":[ { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2024-41054" }, { "summary":"CVE-2024-41054 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/cve/2024/csaf-openeuler-cve-2024-41054.json" }, { "summary":"openEuler-SA-2024-2076", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-2076" }, { "summary":"CVE-2024-41054", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2024-41054&packageName=kernel" } ], "title":"openEuler cve CVE-2024-41054", "tracking":{ "initial_release_date":"2024-08-30T20:25:35+08:00", "revision_history":[ { "date":"2024-08-30T20:25:35+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2024-08-30T20:25:35+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2024-08-30T20:25:35+08:00", "id":"CVE-2024-41054", "version":"1.0.0", "status":"interim" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ 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Fix ufshcd_clear_cmd racing issueWhen ufshcd_clear_cmd is racing with the completion ISR, the completed tagof the request s mq_hctx pointer will be set to NULL by the ISR. Andufshcd_clear_cmd s call to ufshcd_mcq_req_to_hwq will get NULL pointer KE.Return success when the request is completed by ISR because sq does notneed cleanup.The racing flow is:Thread Aufshcd_err_handler step 1 ufshcd_try_to_abort_task ufshcd_cmd_inflight(true) step 3 ufshcd_clear_cmd ... ufshcd_mcq_req_to_hwq blk_mq_unique_tag rq->mq_hctx->queue_num step 5Thread Bufs_mtk_mcq_intr(cq complete ISR) step 2 scsi_done ... __blk_mq_free_request rq->mq_hctx = NULL; step 4Below is KE back trace: ufshcd_try_to_abort_task: cmd pending in the device. tag = 6 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000194 pc : [0xffffffd589679bf8] blk_mq_unique_tag+0x8/0x14 lr : [0xffffffd5862f95b4] ufshcd_mcq_sq_cleanup+0x6c/0x1cc [ufs_mediatek_mod_ise] Workqueue: ufs_eh_wq_0 ufshcd_err_handler [ufs_mediatek_mod_ise] Call trace: 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 ufshcd_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 worker_thread+0x228/0x438 kthread+0x104/0x1d4 ret_from_fork+0x10/0x20", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-24.03-LTS:bpftool-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:bpftool-debuginfo-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-debuginfo-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-debugsource-6.6.0-39.0.0.47.oe2403.aarch64", 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"openEuler-24.03-LTS:kernel-6.6.0-39.0.0.47.oe2403.src" ], "details":"kernel security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-2076" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"MEDIUM", "baseScore":5.5, "vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version":"3.1" }, "products":[ "openEuler-24.03-LTS:bpftool-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:bpftool-debuginfo-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-debuginfo-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-debugsource-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-devel-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-headers-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-source-6.6.0-39.0.0.47.oe2403.aarch64", "openEuler-24.03-LTS:kernel-tools-6.6.0-39.0.0.47.oe2403.aarch64", 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