{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"LOW" }, "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:\n\nata: sata_dwc_460ex: Fix crash due to OOB write\n\nthe driver uses libata's \"tag\" values from in various arrays.\nSince the mentioned patch bumped the ATA_TAG_INTERNAL to 32,\nthe value of the SATA_DWC_QCMD_MAX needs to account for that.\n\nOtherwise ATA_TAG_INTERNAL usage cause similar crashes like\nthis as reported by Tice Rex on the OpenWrt Forum and\nreproduced (with symbols) here:\n\n| BUG: Kernel NULL pointer dereference at 0x00000000\n| Faulting instruction address: 0xc03ed4b8\n| Oops: Kernel access of bad area, sig: 11 [#1]\n| BE PAGE_SIZE=4K PowerPC 44x Platform\n| CPU: 0 PID: 362 Comm: scsi_eh_1 Not tainted 5.4.163 #0\n| NIP: c03ed4b8 LR: c03d27e8 CTR: c03ed36c\n| REGS: cfa59950 TRAP: 0300 Not tainted (5.4.163)\n| MSR: 00021000 CR: 42000222 XER: 00000000\n| DEAR: 00000000 ESR: 00000000\n| GPR00: c03d27e8 cfa59a08 cfa55fe0 00000000 0fa46bc0 [...]\n| [..]\n| NIP [c03ed4b8] sata_dwc_qc_issue+0x14c/0x254\n| LR [c03d27e8] ata_qc_issue+0x1c8/0x2dc\n| Call Trace:\n| [cfa59a08] [c003f4e0] __cancel_work_timer+0x124/0x194 (unreliable)\n| [cfa59a78] [c03d27e8] ata_qc_issue+0x1c8/0x2dc\n| [cfa59a98] [c03d2b3c] ata_exec_internal_sg+0x240/0x524\n| [cfa59b08] [c03d2e98] ata_exec_internal+0x78/0xe0\n| [cfa59b58] [c03d30fc] ata_read_log_page.part.38+0x1dc/0x204\n| [cfa59bc8] [c03d324c] ata_identify_page_supported+0x68/0x130\n| [...]\n\nThis is because sata_dwc_dma_xfer_complete() NULLs the\ndma_pending's next neighbour \"chan\" (a *dma_chan struct) in\nthis '32' case right here (line ~735):\n> hsdevp->dma_pending[tag] = SATA_DWC_DMA_PENDING_NONE;\n\nThen the next time, a dma gets issued; dma_dwc_xfer_setup() passes\nthe NULL'd hsdevp->chan to the dmaengine_slave_config() which then\ncauses the crash.\n\nWith this patch, SATA_DWC_QCMD_MAX is now set to ATA_MAX_QUEUE + 1.\nThis avoids the OOB. But please note, there was a worthwhile discussion\non what ATA_TAG_INTERNAL and ATA_MAX_QUEUE is. And why there should not\nbe a \"fake\" 33 command-long queue size.\n\nIdeally, the dw driver should account for the ATA_TAG_INTERNAL.\nIn Damien Le Moal's words: \"... having looked at the driver, it\nis a bigger change than just faking a 33rd \"tag\" that is in fact\nnot a command tag at all.\"\n\nBugLink: https://github.com/openwrt/openwrt/issues/9505", "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-2022-49073" }, { "summary":"CVE-2022-49073 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/cve/2022/csaf-openeuler-cve-2022-49073.json" }, { "summary":"openEuler-SA-2025-1245", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1245" }, { "summary":"CVE-2022-49073", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2022-49073&packageName=kernel" } ], "title":"openEuler cve CVE-2022-49073", "tracking":{ "initial_release_date":"2025-03-07T23:30:42+08:00", "revision_history":[ { "date":"2025-03-07T23:30:42+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2025-03-07T23:30:42+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2025-03-07T23:30:42+08:00", "id":"CVE-2022-49073", "version":"1.0.0", "status":"interim" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4" }, "product_id":"openEuler-20.03-LTS-SP4", "name":"openEuler-20.03-LTS-SP4" }, 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from in various arrays.\nSince the mentioned patch bumped the ATA_TAG_INTERNAL to 32,\nthe value of the SATA_DWC_QCMD_MAX needs to account for that.\n\nOtherwise ATA_TAG_INTERNAL usage cause similar crashes like\nthis as reported by Tice Rex on the OpenWrt Forum and\nreproduced (with symbols) here:\n\n| BUG: Kernel NULL pointer dereference at 0x00000000\n| Faulting instruction address: 0xc03ed4b8\n| Oops: Kernel access of bad area, sig: 11 [#1]\n| BE PAGE_SIZE=4K PowerPC 44x Platform\n| CPU: 0 PID: 362 Comm: scsi_eh_1 Not tainted 5.4.163 #0\n| NIP: c03ed4b8 LR: c03d27e8 CTR: c03ed36c\n| REGS: cfa59950 TRAP: 0300 Not tainted (5.4.163)\n| MSR: 00021000 CR: 42000222 XER: 00000000\n| DEAR: 00000000 ESR: 00000000\n| GPR00: c03d27e8 cfa59a08 cfa55fe0 00000000 0fa46bc0 [...]\n| [..]\n| NIP [c03ed4b8] sata_dwc_qc_issue+0x14c/0x254\n| LR [c03d27e8] ata_qc_issue+0x1c8/0x2dc\n| Call Trace:\n| [cfa59a08] [c003f4e0] __cancel_work_timer+0x124/0x194 (unreliable)\n| [cfa59a78] [c03d27e8] ata_qc_issue+0x1c8/0x2dc\n| [cfa59a98] [c03d2b3c] ata_exec_internal_sg+0x240/0x524\n| [cfa59b08] [c03d2e98] ata_exec_internal+0x78/0xe0\n| [cfa59b58] [c03d30fc] ata_read_log_page.part.38+0x1dc/0x204\n| [cfa59bc8] [c03d324c] ata_identify_page_supported+0x68/0x130\n| [...]\n\nThis is because sata_dwc_dma_xfer_complete() NULLs the\ndma_pending's next neighbour \"chan\" (a *dma_chan struct) in\nthis '32' case right here (line ~735):\n> hsdevp->dma_pending[tag] = SATA_DWC_DMA_PENDING_NONE;\n\nThen the next time, a dma gets issued; dma_dwc_xfer_setup() passes\nthe NULL'd hsdevp->chan to the dmaengine_slave_config() which then\ncauses the crash.\n\nWith this patch, SATA_DWC_QCMD_MAX is now set to ATA_MAX_QUEUE + 1.\nThis avoids the OOB. But please note, there was a worthwhile discussion\non what ATA_TAG_INTERNAL and ATA_MAX_QUEUE is. And why there should not\nbe a \"fake\" 33 command-long queue size.\n\nIdeally, the dw driver should account for the ATA_TAG_INTERNAL.\nIn Damien Le Moal's words: \"... having looked at the driver, it\nis a bigger change than just faking a 33rd \"tag\" that is in fact\nnot a command tag at all.\"\n\nBugLink: https://github.com/openwrt/openwrt/issues/9505", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-20.03-LTS-SP4:bpftool-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:bpftool-debuginfo-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-debuginfo-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-debugsource-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-devel-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", 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"openEuler-20.03-LTS-SP4:python3-perf-debuginfo-4.19.90-2503.1.0.0318.oe2003sp4.aarch64" ], "details":"kernel security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1245" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"LOW", "baseScore":3.9, "vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L", "version":"3.1" }, "products":[ "openEuler-20.03-LTS-SP4:bpftool-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:bpftool-debuginfo-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-debuginfo-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-debugsource-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-devel-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-source-4.19.90-2503.1.0.0318.oe2003sp4.x86_64", 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