{"api_version":"1","generated_at":"2026-06-01T03:17:22+00:00","cve":"CVE-2026-46156","urls":{"html":"https://cve.report/CVE-2026-46156","api":"https://cve.report/api/cve/CVE-2026-46156.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46156","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46156"},"summary":{"title":"LoongArch: Fix potential ADE in loongson_gpu_fixup_dma_hang()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Fix potential ADE in loongson_gpu_fixup_dma_hang()\n\nThe switch case in loongson_gpu_fixup_dma_hang() may not DC2 or DC3, and\nreadl(crtc_reg) will access with random address, because the \"device\" is\nfrom \"base+PCI_DEVICE_ID\", \"base\" is from \"pdev->devfn+1\". This is wrong\nwhen my platform inserts a discrete GPU:\n\nlspci -tv\n-[0000:00]-+-00.0  Loongson Technology LLC Hyper Transport Bridge Controller\n...\n           +-06.0  Loongson Technology LLC LG100 GPU\n           +-06.2  Loongson Technology LLC Device 7a37\n...\n\nAdd a default switch case to fix the panic as below:\n\n Kernel ade access[#1]:\n CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.6.136-loong64-desktop-hwe+ #4\n pc 90000000017e5534 ra 90000000017e54c0 tp 90000001002f8000 sp 90000001002fb6c0\n a0 80000efe00003100 a1 0000000000003100 a2 0000000000000000 a3 0000000000000002\n a4 90000001002fb6b4 a5 900000087cdb58fd a6 90000000027af000 a7 0000000000000001\n t0 00000000000085b9 t1 000000000000ffff t2 0000000000000000 t3 0000000000000000\n t4 fffffffffffffffd t5 00000000fffb6d9c t6 0000000000083b00 t7 00000000000070c0\n t8 900000087cdb4d94 u0 900000087cdb58fd s9 90000001002fb826 s0 90000000031c12c8\n s1 7fffffffffffff00 s2 90000000031c12d0 s3 0000000000002710 s4 0000000000000000\n s5 0000000000000000 s6 9000000100053000 s7 7fffffffffffff00 s8 90000000030d4000\n    ra: 90000000017e54c0 loongson_gpu_fixup_dma_hang+0x40/0x210\n   ERA: 90000000017e5534 loongson_gpu_fixup_dma_hang+0xb4/0x210\n  CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE)\n  PRMD: 00000004 (PPLV0 +PIE -PWE)\n  EUEN: 00000000 (-FPE -SXE -ASXE -BTE)\n  ECFG: 00071c1d (LIE=0,2-4,10-12 VS=7)\n ESTAT: 00480000 [ADEM] (IS= ECode=8 EsubCode=1)\n  BADV: 7fffffffffffff00\n  PRID: 0014d000 (Loongson-64bit, Loongson-3A6000-HV)\n Modules linked in:\n Process swapper/0 (pid: 1, threadinfo=(____ptrval____), task=(____ptrval____))\n Stack : 0000000000000006 90000001002fb778 90000001002fb704 0000000000000007\n         0000000016a65700 90000000017e5690 000000000000ffff ffffffffffffffff\n         900000000209f7c0 9000000100053000 900000000209f7a8 9000000000eebc08\n         0000000000000000 0000000000000000 0000000000000006 90000001002fb778\n         90000001000530b8 90000000027af000 0000000000000000 9000000100054000\n         9000000100053000 9000000000ebb70c 9000000100004c00 9000000004000001\n         90000001002fb7e4 bae765461f31cb12 0000000000000000 0000000000000000\n         0000000000000006 90000000027af000 0000000000000030 90000000027af000\n         900000087cd6f800 9000000100053000 0000000000000000 9000000000ebc560\n         7a2500147cdaf720 bae765461f31cb12 0000000000000001 0000000000000030\n         ...\n Call Trace:\n [<90000000017e5534>] loongson_gpu_fixup_dma_hang+0xb4/0x210\n [<9000000000eebc08>] pci_fixup_device+0x108/0x280\n [<9000000000ebb70c>] pci_setup_device+0x24c/0x690\n [<9000000000ebc560>] pci_scan_single_device+0xe0/0x140\n [<9000000000ebc684>] pci_scan_slot+0xc4/0x280\n [<9000000000ebdd00>] pci_scan_child_bus_extend+0x60/0x3f0\n [<9000000000f5bc94>] acpi_pci_root_create+0x2b4/0x420\n [<90000000017e5e74>] pci_acpi_scan_root+0x2d4/0x440\n [<9000000000f5b02c>] acpi_pci_root_add+0x21c/0x3a0\n [<9000000000f4ee54>] acpi_bus_attach+0x1a4/0x3c0\n [<90000000010e200c>] device_for_each_child+0x6c/0xe0\n [<9000000000f4bbf4>] acpi_dev_for_each_child+0x44/0x70\n [<9000000000f4ef40>] acpi_bus_attach+0x290/0x3c0\n [<90000000010e200c>] device_for_each_child+0x6c/0xe0\n [<9000000000f4bbf4>] acpi_dev_for_each_child+0x44/0x70\n [<9000000000f4ef40>] acpi_bus_attach+0x290/0x3c0\n [<9000000000f5211c>] acpi_bus_scan+0x6c/0x280\n [<900000000189c028>] acpi_scan_init+0x194/0x310\n [<900000000189bc6c>] acpi_init+0xcc/0x140\n [<9000000000220cdc>] do_one_initcall+0x4c/0x310\n [<90000000018618fc>] kernel_init_freeable+0x258/0x2d4\n [<900000000184326c>] kernel_init+0x28/0x13c\n [<9000000000222008>] ret_from_kernel_thread+0xc/0xa4","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:31","updated_at":"2026-05-28 13:44:01"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2cb19b06c09983727573bbe7d7430cbad480a714","name":"https://git.kernel.org/stable/c/2cb19b06c09983727573bbe7d7430cbad480a714","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9e1aed63a5552958ef2a9bfd699a3f990e52a77f","name":"https://git.kernel.org/stable/c/9e1aed63a5552958ef2a9bfd699a3f990e52a77f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/07d190e4ec689d6478f7f5e36099fb9bf457e7c5","name":"https://git.kernel.org/stable/c/07d190e4ec689d6478f7f5e36099fb9bf457e7c5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8dfa2f8780e486d05b9a0ffce70b8f5fbd62053e","name":"https://git.kernel.org/stable/c/8dfa2f8780e486d05b9a0ffce70b8f5fbd62053e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/81fef1c278436e6bd68ee4ca05a0acb96e256561","name":"https://git.kernel.org/stable/c/81fef1c278436e6bd68ee4ca05a0acb96e256561","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46156","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46156","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f458dceaa6a35f89180ebd14484983d8e79ecd10 07d190e4ec689d6478f7f5e36099fb9bf457e7c5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 151ba1721ac50765e16d293256389ef14553b46e 2cb19b06c09983727573bbe7d7430cbad480a714 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 70fb63c5d36cc02eaf336b87ac6a82e657f832a4 9e1aed63a5552958ef2a9bfd699a3f990e52a77f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 95db0c9f526d583634cddb2e5914718570fbac87 81fef1c278436e6bd68ee4ca05a0acb96e256561 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 95db0c9f526d583634cddb2e5914718570fbac87 8dfa2f8780e486d05b9a0ffce70b8f5fbd62053e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a31da4d5d1fc29d92d2410c60e1ca298b02a6528 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3446dd359ba9a6ce5a1ca389c0d48c434d3cc915 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.131 6.6.140 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.80 6.12.88 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.21 6.18.30 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.1.168 6.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19.11 6.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.0","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.88 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.30 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.7 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46156","cve":"CVE-2026-46156","epss":"0.000180000","percentile":"0.051380000","score_date":"2026-05-31","updated_at":"2026-06-01 00:08:19"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/loongarch/pci/pci.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"07d190e4ec689d6478f7f5e36099fb9bf457e7c5","status":"affected","version":"f458dceaa6a35f89180ebd14484983d8e79ecd10","versionType":"git"},{"lessThan":"2cb19b06c09983727573bbe7d7430cbad480a714","status":"affected","version":"151ba1721ac50765e16d293256389ef14553b46e","versionType":"git"},{"lessThan":"9e1aed63a5552958ef2a9bfd699a3f990e52a77f","status":"affected","version":"70fb63c5d36cc02eaf336b87ac6a82e657f832a4","versionType":"git"},{"lessThan":"81fef1c278436e6bd68ee4ca05a0acb96e256561","status":"affected","version":"95db0c9f526d583634cddb2e5914718570fbac87","versionType":"git"},{"lessThan":"8dfa2f8780e486d05b9a0ffce70b8f5fbd62053e","status":"affected","version":"95db0c9f526d583634cddb2e5914718570fbac87","versionType":"git"},{"status":"affected","version":"a31da4d5d1fc29d92d2410c60e1ca298b02a6528","versionType":"git"},{"status":"affected","version":"3446dd359ba9a6ce5a1ca389c0d48c434d3cc915","versionType":"git"},{"lessThan":"6.6.140","status":"affected","version":"6.6.131","versionType":"semver"},{"lessThan":"6.12.88","status":"affected","version":"6.12.80","versionType":"semver"},{"lessThan":"6.18.30","status":"affected","version":"6.18.21","versionType":"semver"},{"lessThan":"6.2","status":"affected","version":"6.1.168","versionType":"semver"},{"lessThan":"6.20","status":"affected","version":"6.19.11","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["arch/loongarch/pci/pci.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.0"},{"lessThan":"7.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.88","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"6.6.131","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.88","versionStartIncluding":"6.12.80","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.30","versionStartIncluding":"6.18.21","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.7","versionStartIncluding":"7.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc3","versionStartIncluding":"7.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.168","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Fix potential ADE in loongson_gpu_fixup_dma_hang()\n\nThe switch case in loongson_gpu_fixup_dma_hang() may not DC2 or DC3, and\nreadl(crtc_reg) will access with random address, because the \"device\" is\nfrom \"base+PCI_DEVICE_ID\", \"base\" is from \"pdev->devfn+1\". This is wrong\nwhen my platform inserts a discrete GPU:\n\nlspci -tv\n-[0000:00]-+-00.0  Loongson Technology LLC Hyper Transport Bridge Controller\n...\n           +-06.0  Loongson Technology LLC LG100 GPU\n           +-06.2  Loongson Technology LLC Device 7a37\n...\n\nAdd a default switch case to fix the panic as below:\n\n Kernel ade access[#1]:\n CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.6.136-loong64-desktop-hwe+ #4\n pc 90000000017e5534 ra 90000000017e54c0 tp 90000001002f8000 sp 90000001002fb6c0\n a0 80000efe00003100 a1 0000000000003100 a2 0000000000000000 a3 0000000000000002\n a4 90000001002fb6b4 a5 900000087cdb58fd a6 90000000027af000 a7 0000000000000001\n t0 00000000000085b9 t1 000000000000ffff t2 0000000000000000 t3 0000000000000000\n t4 fffffffffffffffd t5 00000000fffb6d9c t6 0000000000083b00 t7 00000000000070c0\n t8 900000087cdb4d94 u0 900000087cdb58fd s9 90000001002fb826 s0 90000000031c12c8\n s1 7fffffffffffff00 s2 90000000031c12d0 s3 0000000000002710 s4 0000000000000000\n s5 0000000000000000 s6 9000000100053000 s7 7fffffffffffff00 s8 90000000030d4000\n    ra: 90000000017e54c0 loongson_gpu_fixup_dma_hang+0x40/0x210\n   ERA: 90000000017e5534 loongson_gpu_fixup_dma_hang+0xb4/0x210\n  CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE)\n  PRMD: 00000004 (PPLV0 +PIE -PWE)\n  EUEN: 00000000 (-FPE -SXE -ASXE -BTE)\n  ECFG: 00071c1d (LIE=0,2-4,10-12 VS=7)\n ESTAT: 00480000 [ADEM] (IS= ECode=8 EsubCode=1)\n  BADV: 7fffffffffffff00\n  PRID: 0014d000 (Loongson-64bit, Loongson-3A6000-HV)\n Modules linked in:\n Process swapper/0 (pid: 1, threadinfo=(____ptrval____), task=(____ptrval____))\n Stack : 0000000000000006 90000001002fb778 90000001002fb704 0000000000000007\n         0000000016a65700 90000000017e5690 000000000000ffff ffffffffffffffff\n         900000000209f7c0 9000000100053000 900000000209f7a8 9000000000eebc08\n         0000000000000000 0000000000000000 0000000000000006 90000001002fb778\n         90000001000530b8 90000000027af000 0000000000000000 9000000100054000\n         9000000100053000 9000000000ebb70c 9000000100004c00 9000000004000001\n         90000001002fb7e4 bae765461f31cb12 0000000000000000 0000000000000000\n         0000000000000006 90000000027af000 0000000000000030 90000000027af000\n         900000087cd6f800 9000000100053000 0000000000000000 9000000000ebc560\n         7a2500147cdaf720 bae765461f31cb12 0000000000000001 0000000000000030\n         ...\n Call Trace:\n [<90000000017e5534>] loongson_gpu_fixup_dma_hang+0xb4/0x210\n [<9000000000eebc08>] pci_fixup_device+0x108/0x280\n [<9000000000ebb70c>] pci_setup_device+0x24c/0x690\n [<9000000000ebc560>] pci_scan_single_device+0xe0/0x140\n [<9000000000ebc684>] pci_scan_slot+0xc4/0x280\n [<9000000000ebdd00>] pci_scan_child_bus_extend+0x60/0x3f0\n [<9000000000f5bc94>] acpi_pci_root_create+0x2b4/0x420\n [<90000000017e5e74>] pci_acpi_scan_root+0x2d4/0x440\n [<9000000000f5b02c>] acpi_pci_root_add+0x21c/0x3a0\n [<9000000000f4ee54>] acpi_bus_attach+0x1a4/0x3c0\n [<90000000010e200c>] device_for_each_child+0x6c/0xe0\n [<9000000000f4bbf4>] acpi_dev_for_each_child+0x44/0x70\n [<9000000000f4ef40>] acpi_bus_attach+0x290/0x3c0\n [<90000000010e200c>] device_for_each_child+0x6c/0xe0\n [<9000000000f4bbf4>] acpi_dev_for_each_child+0x44/0x70\n [<9000000000f4ef40>] acpi_bus_attach+0x290/0x3c0\n [<9000000000f5211c>] acpi_bus_scan+0x6c/0x280\n [<900000000189c028>] acpi_scan_init+0x194/0x310\n [<900000000189bc6c>] acpi_init+0xcc/0x140\n [<9000000000220cdc>] do_one_initcall+0x4c/0x310\n [<90000000018618fc>] kernel_init_freeable+0x258/0x2d4\n [<900000000184326c>] kernel_init+0x28/0x13c\n [<9000000000222008>] ret_from_kernel_thread+0xc/0xa4"}],"providerMetadata":{"dateUpdated":"2026-05-28T09:36:12.075Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/07d190e4ec689d6478f7f5e36099fb9bf457e7c5"},{"url":"https://git.kernel.org/stable/c/2cb19b06c09983727573bbe7d7430cbad480a714"},{"url":"https://git.kernel.org/stable/c/9e1aed63a5552958ef2a9bfd699a3f990e52a77f"},{"url":"https://git.kernel.org/stable/c/81fef1c278436e6bd68ee4ca05a0acb96e256561"},{"url":"https://git.kernel.org/stable/c/8dfa2f8780e486d05b9a0ffce70b8f5fbd62053e"}],"title":"LoongArch: Fix potential ADE in loongson_gpu_fixup_dma_hang()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46156","datePublished":"2026-05-28T09:36:12.075Z","dateReserved":"2026-05-13T15:03:33.102Z","dateUpdated":"2026-05-28T09:36:12.075Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 10:16:31","lastModifiedDate":"2026-05-28 13:44:01","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46156","Ordinal":"1","Title":"LoongArch: Fix potential ADE in loongson_gpu_fixup_dma_hang()","CVE":"CVE-2026-46156","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46156","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Fix potential ADE in loongson_gpu_fixup_dma_hang()\n\nThe switch case in loongson_gpu_fixup_dma_hang() may not DC2 or DC3, and\nreadl(crtc_reg) will access with random address, because the \"device\" is\nfrom \"base+PCI_DEVICE_ID\", \"base\" is from \"pdev->devfn+1\". This is wrong\nwhen my platform inserts a discrete GPU:\n\nlspci -tv\n-[0000:00]-+-00.0  Loongson Technology LLC Hyper Transport Bridge Controller\n...\n           +-06.0  Loongson Technology LLC LG100 GPU\n           +-06.2  Loongson Technology LLC Device 7a37\n...\n\nAdd a default switch case to fix the panic as below:\n\n Kernel ade access[#1]:\n CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.6.136-loong64-desktop-hwe+ #4\n pc 90000000017e5534 ra 90000000017e54c0 tp 90000001002f8000 sp 90000001002fb6c0\n a0 80000efe00003100 a1 0000000000003100 a2 0000000000000000 a3 0000000000000002\n a4 90000001002fb6b4 a5 900000087cdb58fd a6 90000000027af000 a7 0000000000000001\n t0 00000000000085b9 t1 000000000000ffff t2 0000000000000000 t3 0000000000000000\n t4 fffffffffffffffd t5 00000000fffb6d9c t6 0000000000083b00 t7 00000000000070c0\n t8 900000087cdb4d94 u0 900000087cdb58fd s9 90000001002fb826 s0 90000000031c12c8\n s1 7fffffffffffff00 s2 90000000031c12d0 s3 0000000000002710 s4 0000000000000000\n s5 0000000000000000 s6 9000000100053000 s7 7fffffffffffff00 s8 90000000030d4000\n    ra: 90000000017e54c0 loongson_gpu_fixup_dma_hang+0x40/0x210\n   ERA: 90000000017e5534 loongson_gpu_fixup_dma_hang+0xb4/0x210\n  CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE)\n  PRMD: 00000004 (PPLV0 +PIE -PWE)\n  EUEN: 00000000 (-FPE -SXE -ASXE -BTE)\n  ECFG: 00071c1d (LIE=0,2-4,10-12 VS=7)\n ESTAT: 00480000 [ADEM] (IS= ECode=8 EsubCode=1)\n  BADV: 7fffffffffffff00\n  PRID: 0014d000 (Loongson-64bit, Loongson-3A6000-HV)\n Modules linked in:\n Process swapper/0 (pid: 1, threadinfo=(____ptrval____), task=(____ptrval____))\n Stack : 0000000000000006 90000001002fb778 90000001002fb704 0000000000000007\n         0000000016a65700 90000000017e5690 000000000000ffff ffffffffffffffff\n         900000000209f7c0 9000000100053000 900000000209f7a8 9000000000eebc08\n         0000000000000000 0000000000000000 0000000000000006 90000001002fb778\n         90000001000530b8 90000000027af000 0000000000000000 9000000100054000\n         9000000100053000 9000000000ebb70c 9000000100004c00 9000000004000001\n         90000001002fb7e4 bae765461f31cb12 0000000000000000 0000000000000000\n         0000000000000006 90000000027af000 0000000000000030 90000000027af000\n         900000087cd6f800 9000000100053000 0000000000000000 9000000000ebc560\n         7a2500147cdaf720 bae765461f31cb12 0000000000000001 0000000000000030\n         ...\n Call Trace:\n [<90000000017e5534>] loongson_gpu_fixup_dma_hang+0xb4/0x210\n [<9000000000eebc08>] pci_fixup_device+0x108/0x280\n [<9000000000ebb70c>] pci_setup_device+0x24c/0x690\n [<9000000000ebc560>] pci_scan_single_device+0xe0/0x140\n [<9000000000ebc684>] pci_scan_slot+0xc4/0x280\n [<9000000000ebdd00>] pci_scan_child_bus_extend+0x60/0x3f0\n [<9000000000f5bc94>] acpi_pci_root_create+0x2b4/0x420\n [<90000000017e5e74>] pci_acpi_scan_root+0x2d4/0x440\n [<9000000000f5b02c>] acpi_pci_root_add+0x21c/0x3a0\n [<9000000000f4ee54>] acpi_bus_attach+0x1a4/0x3c0\n [<90000000010e200c>] device_for_each_child+0x6c/0xe0\n [<9000000000f4bbf4>] acpi_dev_for_each_child+0x44/0x70\n [<9000000000f4ef40>] acpi_bus_attach+0x290/0x3c0\n [<90000000010e200c>] device_for_each_child+0x6c/0xe0\n [<9000000000f4bbf4>] acpi_dev_for_each_child+0x44/0x70\n [<9000000000f4ef40>] acpi_bus_attach+0x290/0x3c0\n [<9000000000f5211c>] acpi_bus_scan+0x6c/0x280\n [<900000000189c028>] acpi_scan_init+0x194/0x310\n [<900000000189bc6c>] acpi_init+0xcc/0x140\n [<9000000000220cdc>] do_one_initcall+0x4c/0x310\n [<90000000018618fc>] kernel_init_freeable+0x258/0x2d4\n [<900000000184326c>] kernel_init+0x28/0x13c\n [<9000000000222008>] ret_from_kernel_thread+0xc/0xa4","Type":"Description","Title":"LoongArch: Fix potential ADE in loongson_gpu_fixup_dma_hang()"}]}}}