{ "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:drm: zynqmp_dpsub: Always register bridgeWe must always register the DRM bridge, since zynqmp_dp_hpd_work_funccalls drm_bridge_hpd_notify, which in turn expects hpd_mutex to beinitialized. We do this before zynqmp_dpsub_drm_init since that callsdrm_bridge_attach. This fixes the following lockdep warning:[ 19.217084] ------------[ cut here ]------------[ 19.227530] DEBUG_LOCKS_WARN_ON(lock->magic != lock)[ 19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550[ 19.241696] Modules linked in:[ 19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96[ 19.252046] Hardware name: xlnx,zynqmp (DT)[ 19.256421] Workqueue: events zynqmp_dp_hpd_work_func[ 19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)[ 19.269104] pc : __mutex_lock+0x4bc/0x550[ 19.273364] lr : __mutex_lock+0x4bc/0x550[ 19.277592] sp : ffffffc085c5bbe0[ 19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8[ 19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000[ 19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000[ 19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000[ 19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720[ 19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001[ 19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888[ 19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000[ 19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000[ 19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880[ 19.356581] Call trace:[ 19.359160] __mutex_lock+0x4bc/0x550[ 19.363032] mutex_lock_nested+0x24/0x30[ 19.367187] drm_bridge_hpd_notify+0x2c/0x6c[ 19.371698] zynqmp_dp_hpd_work_func+0x44/0x54[ 19.376364] process_one_work+0x3ac/0x988[ 19.380660] worker_thread+0x398/0x694[ 19.384736] kthread+0x1bc/0x1c0[ 19.388241] ret_from_fork+0x10/0x20[ 19.392031] irq event stamp: 183[ 19.395450] hardirqs last enabled at (183): [] finish_task_switch.isra.0+0xa8/0x2d4[ 19.405140] hardirqs last disabled at (182): [] __schedule+0x714/0xd04[ 19.413612] softirqs last enabled at (114): [] srcu_invoke_callbacks+0x158/0x23c[ 19.423128] softirqs last disabled at (110): [] srcu_invoke_callbacks+0x158/0x23c[ 19.432614] ---[ end trace 0000000000000000 ]---(cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)", "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-2024-38664" }, { "summary":"CVE-2024-38664 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/cve/2024/csaf-openeuler-cve-2024-38664.json" }, { "summary":"openEuler-SA-2024-1836", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1836" }, { "summary":"CVE-2024-38664", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2024-38664&packageName=kernel" } ], "title":"openEuler cve CVE-2024-38664", "tracking":{ "initial_release_date":"2024-07-12T22:52:16+08:00", "revision_history":[ { "date":"2024-07-12T22:52:16+08:00", "summary":"Initial", "number":"1.0.0" }, { "date":"2024-08-19T17:35:34+08:00", "summary":"Current version", "number":"2.0.0" } ], "generator":{ "date":"2024-08-19T17:35:34+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2024-08-19T17:35:34+08:00", "id":"CVE-2024-38664", "version":"2.0.0", "status":"interim" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS" }, "product_id":"openEuler-24.03-LTS", "name":"openEuler-24.03-LTS" }, "name":"openEuler-24.03-LTS", "category":"product_version" } ], "category":"product_name" }, { 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since zynqmp_dp_hpd_work_funccalls drm_bridge_hpd_notify, which in turn expects hpd_mutex to beinitialized. We do this before zynqmp_dpsub_drm_init since that callsdrm_bridge_attach. This fixes the following lockdep warning:[ 19.217084] ------------[ cut here ]------------[ 19.227530] DEBUG_LOCKS_WARN_ON(lock->magic != lock)[ 19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550[ 19.241696] Modules linked in:[ 19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96[ 19.252046] Hardware name: xlnx,zynqmp (DT)[ 19.256421] Workqueue: events zynqmp_dp_hpd_work_func[ 19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)[ 19.269104] pc : __mutex_lock+0x4bc/0x550[ 19.273364] lr : __mutex_lock+0x4bc/0x550[ 19.277592] sp : ffffffc085c5bbe0[ 19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8[ 19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000[ 19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000[ 19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000[ 19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720[ 19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001[ 19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888[ 19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000[ 19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000[ 19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880[ 19.356581] Call trace:[ 19.359160] __mutex_lock+0x4bc/0x550[ 19.363032] mutex_lock_nested+0x24/0x30[ 19.367187] drm_bridge_hpd_notify+0x2c/0x6c[ 19.371698] zynqmp_dp_hpd_work_func+0x44/0x54[ 19.376364] process_one_work+0x3ac/0x988[ 19.380660] worker_thread+0x398/0x694[ 19.384736] kthread+0x1bc/0x1c0[ 19.388241] ret_from_fork+0x10/0x20[ 19.392031] irq event stamp: 183[ 19.395450] hardirqs last enabled at (183): [] finish_task_switch.isra.0+0xa8/0x2d4[ 19.405140] hardirqs last disabled at (182): [] __schedule+0x714/0xd04[ 19.413612] softirqs last enabled at (114): [] srcu_invoke_callbacks+0x158/0x23c[ 19.423128] softirqs last disabled at (110): [] srcu_invoke_callbacks+0x158/0x23c[ 19.432614] ---[ end trace 0000000000000000 ]---(cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-24.03-LTS:bpftool-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:bpftool-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-debugsource-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-devel-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-headers-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-source-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-tools-6.6.0-33.0.0.40.oe2403.aarch64", 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"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version":"3.1" }, "products":[ "openEuler-24.03-LTS:bpftool-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:bpftool-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-debugsource-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-devel-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-headers-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-source-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-tools-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-tools-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:kernel-tools-devel-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:perf-6.6.0-33.0.0.40.oe2403.aarch64", "openEuler-24.03-LTS:perf-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64", 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"openEuler-24.03-LTS:perf-debuginfo-6.6.0-33.0.0.40.oe2403.x86_64", "openEuler-24.03-LTS:python3-perf-6.6.0-33.0.0.40.oe2403.x86_64", "openEuler-24.03-LTS:python3-perf-debuginfo-6.6.0-33.0.0.40.oe2403.x86_64", "openEuler-24.03-LTS:kernel-6.6.0-33.0.0.40.oe2403.src" ] } ], "threats":[ { "details":"High", "category":"impact" } ], "title":"CVE-2024-38664" } ] }