{"api_version":"1","generated_at":"2026-11-10T17:01:38+00:00","cve":"CVE-2025-21869","urls":{"html":"https://cve.report/CVE-2025-21869","api":"https://cve.report/api/cve/CVE-2025-21869.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-21869","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-21869"},"summary":{"title":"powerpc/code-patching: Disable KASAN report during patching via temporary mm","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/code-patching: Disable KASAN report during patching via temporary mm\n\nErhard reports the following KASAN hit on Talos II (power9) with kernel 6.13:\n\n[   12.028126] ==================================================================\n[   12.028198] BUG: KASAN: user-memory-access in copy_to_kernel_nofault+0x8c/0x1a0\n[   12.028260] Write of size 8 at addr 0000187e458f2000 by task systemd/1\n\n[   12.028346] CPU: 87 UID: 0 PID: 1 Comm: systemd Tainted: G                T  6.13.0-P9-dirty #3\n[   12.028408] Tainted: [T]=RANDSTRUCT\n[   12.028446] Hardware name: T2P9D01 REV 1.01 POWER9 0x4e1202 opal:skiboot-bc106a0 PowerNV\n[   12.028500] Call Trace:\n[   12.028536] [c000000008dbf3b0] [c000000001656a48] dump_stack_lvl+0xbc/0x110 (unreliable)\n[   12.028609] [c000000008dbf3f0] [c0000000006e2fc8] print_report+0x6b0/0x708\n[   12.028666] [c000000008dbf4e0] [c0000000006e2454] kasan_report+0x164/0x300\n[   12.028725] [c000000008dbf600] [c0000000006e54d4] kasan_check_range+0x314/0x370\n[   12.028784] [c000000008dbf640] [c0000000006e6310] __kasan_check_write+0x20/0x40\n[   12.028842] [c000000008dbf660] [c000000000578e8c] copy_to_kernel_nofault+0x8c/0x1a0\n[   12.028902] [c000000008dbf6a0] [c0000000000acfe4] __patch_instructions+0x194/0x210\n[   12.028965] [c000000008dbf6e0] [c0000000000ade80] patch_instructions+0x150/0x590\n[   12.029026] [c000000008dbf7c0] [c0000000001159bc] bpf_arch_text_copy+0x6c/0xe0\n[   12.029085] [c000000008dbf800] [c000000000424250] bpf_jit_binary_pack_finalize+0x40/0xc0\n[   12.029147] [c000000008dbf830] [c000000000115dec] bpf_int_jit_compile+0x3bc/0x930\n[   12.029206] [c000000008dbf990] [c000000000423720] bpf_prog_select_runtime+0x1f0/0x280\n[   12.029266] [c000000008dbfa00] [c000000000434b18] bpf_prog_load+0xbb8/0x1370\n[   12.029324] [c000000008dbfb70] [c000000000436ebc] __sys_bpf+0x5ac/0x2e00\n[   12.029379] [c000000008dbfd00] [c00000000043a228] sys_bpf+0x28/0x40\n[   12.029435] [c000000008dbfd20] [c000000000038eb4] system_call_exception+0x334/0x610\n[   12.029497] [c000000008dbfe50] [c00000000000c270] system_call_vectored_common+0xf0/0x280\n[   12.029561] --- interrupt: 3000 at 0x3fff82f5cfa8\n[   12.029608] NIP:  00003fff82f5cfa8 LR: 00003fff82f5cfa8 CTR: 0000000000000000\n[   12.029660] REGS: c000000008dbfe80 TRAP: 3000   Tainted: G                T   (6.13.0-P9-dirty)\n[   12.029735] MSR:  900000000280f032 <SF,HV,VEC,VSX,EE,PR,FP,ME,IR,DR,RI>  CR: 42004848  XER: 00000000\n[   12.029855] IRQMASK: 0\n               GPR00: 0000000000000169 00003fffdcf789a0 00003fff83067100 0000000000000005\n               GPR04: 00003fffdcf78a98 0000000000000090 0000000000000000 0000000000000008\n               GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000\n               GPR12: 0000000000000000 00003fff836ff7e0 c000000000010678 0000000000000000\n               GPR16: 0000000000000000 0000000000000000 00003fffdcf78f28 00003fffdcf78f90\n               GPR20: 0000000000000000 0000000000000000 0000000000000000 00003fffdcf78f80\n               GPR24: 00003fffdcf78f70 00003fffdcf78d10 00003fff835c7239 00003fffdcf78bd8\n               GPR28: 00003fffdcf78a98 0000000000000000 0000000000000000 000000011f547580\n[   12.030316] NIP [00003fff82f5cfa8] 0x3fff82f5cfa8\n[   12.030361] LR [00003fff82f5cfa8] 0x3fff82f5cfa8\n[   12.030405] --- interrupt: 3000\n[   12.030444] ==================================================================\n\nCommit c28c15b6d28a (\"powerpc/code-patching: Use temporary mm for\nRadix MMU\") is inspired from x86 but unlike x86 is doesn't disable\nKASAN reports during patching. This wasn't a problem at the begining\nbecause __patch_mem() is not instrumented.\n\nCommit 465cabc97b42 (\"powerpc/code-patching: introduce\npatch_instructions()\") use copy_to_kernel_nofault() to copy several\ninstructions at once. But when using temporary mm the destination is\nnot regular kernel memory but a kind of kernel-like memory located\nin user address space. \n---truncated---","state":"PUBLISHED","assigner":"Linux","published_at":"2025-03-27 14:15:48","updated_at":"2026-11-05 21:17:44"},"problem_types":["CWE-787"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/dc9c5166c3cb044f8a001e397195242fd6796eee","name":"https://git.kernel.org/stable/c/dc9c5166c3cb044f8a001e397195242fd6796eee","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5980d4456dd66d1b6505d5ec15048bd87e8775e0","name":"https://git.kernel.org/stable/c/5980d4456dd66d1b6505d5ec15048bd87e8775e0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ea291447a4031f3dac5c23d55bc83fe833820d84","name":"https://git.kernel.org/stable/c/ea291447a4031f3dac5c23d55bc83fe833820d84","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-21869","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21869","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 465cabc97b42405eb89380ea6ba8d8b03e4ae1a2 5980d4456dd66d1b6505d5ec15048bd87e8775e0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 465cabc97b42405eb89380ea6ba8d8b03e4ae1a2 ea291447a4031f3dac5c23d55bc83fe833820d84 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 465cabc97b42405eb89380ea6ba8d8b03e4ae1a2 dc9c5166c3cb044f8a001e397195242fd6796eee git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.7","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.7 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.17 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.13.5 6.13.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.14 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2025","cve_id":"21869","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2025-21869","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-11-05T20:35:54.399989Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-05T20:41:45.815Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/powerpc/lib/code-patching.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5980d4456dd66d1b6505d5ec15048bd87e8775e0","status":"affected","version":"465cabc97b42405eb89380ea6ba8d8b03e4ae1a2","versionType":"git"},{"lessThan":"ea291447a4031f3dac5c23d55bc83fe833820d84","status":"affected","version":"465cabc97b42405eb89380ea6ba8d8b03e4ae1a2","versionType":"git"},{"lessThan":"dc9c5166c3cb044f8a001e397195242fd6796eee","status":"affected","version":"465cabc97b42405eb89380ea6ba8d8b03e4ae1a2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["arch/powerpc/lib/code-patching.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.17","versionType":"semver"},{"lessThanOrEqual":"6.13.*","status":"unaffected","version":"6.13.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.14","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.17","versionStartIncluding":"6.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.13.5","versionStartIncluding":"6.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.14","versionStartIncluding":"6.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/code-patching: Disable KASAN report during patching via temporary mm\n\nErhard reports the following KASAN hit on Talos II (power9) with kernel 6.13:\n\n[   12.028126] ==================================================================\n[   12.028198] BUG: KASAN: user-memory-access in copy_to_kernel_nofault+0x8c/0x1a0\n[   12.028260] Write of size 8 at addr 0000187e458f2000 by task systemd/1\n\n[   12.028346] CPU: 87 UID: 0 PID: 1 Comm: systemd Tainted: G                T  6.13.0-P9-dirty #3\n[   12.028408] Tainted: [T]=RANDSTRUCT\n[   12.028446] Hardware name: T2P9D01 REV 1.01 POWER9 0x4e1202 opal:skiboot-bc106a0 PowerNV\n[   12.028500] Call Trace:\n[   12.028536] [c000000008dbf3b0] [c000000001656a48] dump_stack_lvl+0xbc/0x110 (unreliable)\n[   12.028609] [c000000008dbf3f0] [c0000000006e2fc8] print_report+0x6b0/0x708\n[   12.028666] [c000000008dbf4e0] [c0000000006e2454] kasan_report+0x164/0x300\n[   12.028725] [c000000008dbf600] [c0000000006e54d4] kasan_check_range+0x314/0x370\n[   12.028784] [c000000008dbf640] [c0000000006e6310] __kasan_check_write+0x20/0x40\n[   12.028842] [c000000008dbf660] [c000000000578e8c] copy_to_kernel_nofault+0x8c/0x1a0\n[   12.028902] [c000000008dbf6a0] [c0000000000acfe4] __patch_instructions+0x194/0x210\n[   12.028965] [c000000008dbf6e0] [c0000000000ade80] patch_instructions+0x150/0x590\n[   12.029026] [c000000008dbf7c0] [c0000000001159bc] bpf_arch_text_copy+0x6c/0xe0\n[   12.029085] [c000000008dbf800] [c000000000424250] bpf_jit_binary_pack_finalize+0x40/0xc0\n[   12.029147] [c000000008dbf830] [c000000000115dec] bpf_int_jit_compile+0x3bc/0x930\n[   12.029206] [c000000008dbf990] [c000000000423720] bpf_prog_select_runtime+0x1f0/0x280\n[   12.029266] [c000000008dbfa00] [c000000000434b18] bpf_prog_load+0xbb8/0x1370\n[   12.029324] [c000000008dbfb70] [c000000000436ebc] __sys_bpf+0x5ac/0x2e00\n[   12.029379] [c000000008dbfd00] [c00000000043a228] sys_bpf+0x28/0x40\n[   12.029435] [c000000008dbfd20] [c000000000038eb4] system_call_exception+0x334/0x610\n[   12.029497] [c000000008dbfe50] [c00000000000c270] system_call_vectored_common+0xf0/0x280\n[   12.029561] --- interrupt: 3000 at 0x3fff82f5cfa8\n[   12.029608] NIP:  00003fff82f5cfa8 LR: 00003fff82f5cfa8 CTR: 0000000000000000\n[   12.029660] REGS: c000000008dbfe80 TRAP: 3000   Tainted: G                T   (6.13.0-P9-dirty)\n[   12.029735] MSR:  900000000280f032 <SF,HV,VEC,VSX,EE,PR,FP,ME,IR,DR,RI>  CR: 42004848  XER: 00000000\n[   12.029855] IRQMASK: 0\n               GPR00: 0000000000000169 00003fffdcf789a0 00003fff83067100 0000000000000005\n               GPR04: 00003fffdcf78a98 0000000000000090 0000000000000000 0000000000000008\n               GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000\n               GPR12: 0000000000000000 00003fff836ff7e0 c000000000010678 0000000000000000\n               GPR16: 0000000000000000 0000000000000000 00003fffdcf78f28 00003fffdcf78f90\n               GPR20: 0000000000000000 0000000000000000 0000000000000000 00003fffdcf78f80\n               GPR24: 00003fffdcf78f70 00003fffdcf78d10 00003fff835c7239 00003fffdcf78bd8\n               GPR28: 00003fffdcf78a98 0000000000000000 0000000000000000 000000011f547580\n[   12.030316] NIP [00003fff82f5cfa8] 0x3fff82f5cfa8\n[   12.030361] LR [00003fff82f5cfa8] 0x3fff82f5cfa8\n[   12.030405] --- interrupt: 3000\n[   12.030444] ==================================================================\n\nCommit c28c15b6d28a (\"powerpc/code-patching: Use temporary mm for\nRadix MMU\") is inspired from x86 but unlike x86 is doesn't disable\nKASAN reports during patching. This wasn't a problem at the begining\nbecause __patch_mem() is not instrumented.\n\nCommit 465cabc97b42 (\"powerpc/code-patching: introduce\npatch_instructions()\") use copy_to_kernel_nofault() to copy several\ninstructions at once. But when using temporary mm the destination is\nnot regular kernel memory but a kind of kernel-like memory located\nin user address space. \n---truncated---"}],"providerMetadata":{"dateUpdated":"2026-05-11T21:08:05.914Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/5980d4456dd66d1b6505d5ec15048bd87e8775e0"},{"url":"https://git.kernel.org/stable/c/ea291447a4031f3dac5c23d55bc83fe833820d84"},{"url":"https://git.kernel.org/stable/c/dc9c5166c3cb044f8a001e397195242fd6796eee"}],"title":"powerpc/code-patching: Disable KASAN report during patching via temporary mm","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-21869","datePublished":"2025-03-27T13:38:22.229Z","dateReserved":"2024-12-29T08:45:45.781Z","dateUpdated":"2026-11-05T20:41:45.815Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-03-27 14:15:48","lastModifiedDate":"2026-11-05 21:17:44","problem_types":["CWE-787"],"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:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-05T20:35:54.399989Z","id":"CVE-2025-21869","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.17","matchCriteriaId":"15370AEE-6D1C-49C3-8CB7-E889D5F92B6F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.13.5","matchCriteriaId":"72E69ABB-9015-43A6-87E1-5150383CFFD9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*","matchCriteriaId":"186716B6-2B66-4BD0-852E-D48E71C0C85F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*","matchCriteriaId":"0D3E781C-403A-498F-9DA9-ECEE50F41E75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*","matchCriteriaId":"66619FB8-0AAF-4166-B2CF-67B24143261D"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"21869","Ordinal":"1","Title":"powerpc/code-patching: Disable KASAN report during patching via ","CVE":"CVE-2025-21869","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"21869","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/code-patching: Disable KASAN report during patching via temporary mm\n\nErhard reports the following KASAN hit on Talos II (power9) with kernel 6.13:\n\n[   12.028126] ==================================================================\n[   12.028198] BUG: KASAN: user-memory-access in copy_to_kernel_nofault+0x8c/0x1a0\n[   12.028260] Write of size 8 at addr 0000187e458f2000 by task systemd/1\n\n[   12.028346] CPU: 87 UID: 0 PID: 1 Comm: systemd Tainted: G                T  6.13.0-P9-dirty #3\n[   12.028408] Tainted: [T]=RANDSTRUCT\n[   12.028446] Hardware name: T2P9D01 REV 1.01 POWER9 0x4e1202 opal:skiboot-bc106a0 PowerNV\n[   12.028500] Call Trace:\n[   12.028536] [c000000008dbf3b0] [c000000001656a48] dump_stack_lvl+0xbc/0x110 (unreliable)\n[   12.028609] [c000000008dbf3f0] [c0000000006e2fc8] print_report+0x6b0/0x708\n[   12.028666] [c000000008dbf4e0] [c0000000006e2454] kasan_report+0x164/0x300\n[   12.028725] [c000000008dbf600] [c0000000006e54d4] kasan_check_range+0x314/0x370\n[   12.028784] [c000000008dbf640] [c0000000006e6310] __kasan_check_write+0x20/0x40\n[   12.028842] [c000000008dbf660] [c000000000578e8c] copy_to_kernel_nofault+0x8c/0x1a0\n[   12.028902] [c000000008dbf6a0] [c0000000000acfe4] __patch_instructions+0x194/0x210\n[   12.028965] [c000000008dbf6e0] [c0000000000ade80] patch_instructions+0x150/0x590\n[   12.029026] [c000000008dbf7c0] [c0000000001159bc] bpf_arch_text_copy+0x6c/0xe0\n[   12.029085] [c000000008dbf800] [c000000000424250] bpf_jit_binary_pack_finalize+0x40/0xc0\n[   12.029147] [c000000008dbf830] [c000000000115dec] bpf_int_jit_compile+0x3bc/0x930\n[   12.029206] [c000000008dbf990] [c000000000423720] bpf_prog_select_runtime+0x1f0/0x280\n[   12.029266] [c000000008dbfa00] [c000000000434b18] bpf_prog_load+0xbb8/0x1370\n[   12.029324] [c000000008dbfb70] [c000000000436ebc] __sys_bpf+0x5ac/0x2e00\n[   12.029379] [c000000008dbfd00] [c00000000043a228] sys_bpf+0x28/0x40\n[   12.029435] [c000000008dbfd20] [c000000000038eb4] system_call_exception+0x334/0x610\n[   12.029497] [c000000008dbfe50] [c00000000000c270] system_call_vectored_common+0xf0/0x280\n[   12.029561] --- interrupt: 3000 at 0x3fff82f5cfa8\n[   12.029608] NIP:  00003fff82f5cfa8 LR: 00003fff82f5cfa8 CTR: 0000000000000000\n[   12.029660] REGS: c000000008dbfe80 TRAP: 3000   Tainted: G                T   (6.13.0-P9-dirty)\n[   12.029735] MSR:  900000000280f032 <SF,HV,VEC,VSX,EE,PR,FP,ME,IR,DR,RI>  CR: 42004848  XER: 00000000\n[   12.029855] IRQMASK: 0\n               GPR00: 0000000000000169 00003fffdcf789a0 00003fff83067100 0000000000000005\n               GPR04: 00003fffdcf78a98 0000000000000090 0000000000000000 0000000000000008\n               GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000\n               GPR12: 0000000000000000 00003fff836ff7e0 c000000000010678 0000000000000000\n               GPR16: 0000000000000000 0000000000000000 00003fffdcf78f28 00003fffdcf78f90\n               GPR20: 0000000000000000 0000000000000000 0000000000000000 00003fffdcf78f80\n               GPR24: 00003fffdcf78f70 00003fffdcf78d10 00003fff835c7239 00003fffdcf78bd8\n               GPR28: 00003fffdcf78a98 0000000000000000 0000000000000000 000000011f547580\n[   12.030316] NIP [00003fff82f5cfa8] 0x3fff82f5cfa8\n[   12.030361] LR [00003fff82f5cfa8] 0x3fff82f5cfa8\n[   12.030405] --- interrupt: 3000\n[   12.030444] ==================================================================\n\nCommit c28c15b6d28a (\"powerpc/code-patching: Use temporary mm for\nRadix MMU\") is inspired from x86 but unlike x86 is doesn't disable\nKASAN reports during patching. This wasn't a problem at the begining\nbecause __patch_mem() is not instrumented.\n\nCommit 465cabc97b42 (\"powerpc/code-patching: introduce\npatch_instructions()\") use copy_to_kernel_nofault() to copy several\ninstructions at once. But when using temporary mm the destination is\nnot regular kernel memory but a kind of kernel-like memory located\nin user address space. \n---truncated---","Type":"Description","Title":"powerpc/code-patching: Disable KASAN report during patching via "}]}}}