CVE-2023-52484 (GCVE-0-2023-52484)

Vulnerability from cvelistv5 – Published: 2024-02-29 05:43 – Updated: 2026-01-05 10:16
VLAI?
Title
iommu/arm-smmu-v3: Fix soft lockup triggered by arm_smmu_mm_invalidate_range
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3: Fix soft lockup triggered by arm_smmu_mm_invalidate_range When running an SVA case, the following soft lockup is triggered: -------------------------------------------------------------------- watchdog: BUG: soft lockup - CPU#244 stuck for 26s! pstate: 83400009 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : arm_smmu_cmdq_issue_cmdlist+0x178/0xa50 lr : arm_smmu_cmdq_issue_cmdlist+0x150/0xa50 sp : ffff8000d83ef290 x29: ffff8000d83ef290 x28: 000000003b9aca00 x27: 0000000000000000 x26: ffff8000d83ef3c0 x25: da86c0812194a0e8 x24: 0000000000000000 x23: 0000000000000040 x22: ffff8000d83ef340 x21: ffff0000c63980c0 x20: 0000000000000001 x19: ffff0000c6398080 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff3000b4a3bbb0 x14: ffff3000b4a30888 x13: ffff3000b4a3cf60 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : ffffc08120e4d6bc x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000048cfa x5 : 0000000000000000 x4 : 0000000000000001 x3 : 000000000000000a x2 : 0000000080000000 x1 : 0000000000000000 x0 : 0000000000000001 Call trace: arm_smmu_cmdq_issue_cmdlist+0x178/0xa50 __arm_smmu_tlb_inv_range+0x118/0x254 arm_smmu_tlb_inv_range_asid+0x6c/0x130 arm_smmu_mm_invalidate_range+0xa0/0xa4 __mmu_notifier_invalidate_range_end+0x88/0x120 unmap_vmas+0x194/0x1e0 unmap_region+0xb4/0x144 do_mas_align_munmap+0x290/0x490 do_mas_munmap+0xbc/0x124 __vm_munmap+0xa8/0x19c __arm64_sys_munmap+0x28/0x50 invoke_syscall+0x78/0x11c el0_svc_common.constprop.0+0x58/0x1c0 do_el0_svc+0x34/0x60 el0_svc+0x2c/0xd4 el0t_64_sync_handler+0x114/0x140 el0t_64_sync+0x1a4/0x1a8 -------------------------------------------------------------------- Note that since 6.6-rc1 the arm_smmu_mm_invalidate_range above is renamed to "arm_smmu_mm_arch_invalidate_secondary_tlbs", yet the problem remains. The commit 06ff87bae8d3 ("arm64: mm: remove unused functions and variable protoypes") fixed a similar lockup on the CPU MMU side. Yet, it can occur to SMMU too, since arm_smmu_mm_arch_invalidate_secondary_tlbs() is called typically next to MMU tlb flush function, e.g. tlb_flush_mmu_tlbonly { tlb_flush { __flush_tlb_range { // check MAX_TLBI_OPS } } mmu_notifier_arch_invalidate_secondary_tlbs { arm_smmu_mm_arch_invalidate_secondary_tlbs { // does not check MAX_TLBI_OPS } } } Clone a CMDQ_MAX_TLBI_OPS from the MAX_TLBI_OPS in tlbflush.h, since in an SVA case SMMU uses the CPU page table, so it makes sense to align with the tlbflush code. Then, replace per-page TLBI commands with a single per-asid TLBI command, if the request size hits this threshold.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 51d113c3be09ff5b916576b1109daf413549cacc , < f5a604757aa8e37ea9c7011dc9da54fa1b30f29b (git)
Affected: 51d113c3be09ff5b916576b1109daf413549cacc , < f90f4c562003ac3d3b135c5a40a5383313f27264 (git)
Affected: 51d113c3be09ff5b916576b1109daf413549cacc , < 3283a1bce9bbc978059f790b84f3c10c32492429 (git)
Affected: 51d113c3be09ff5b916576b1109daf413549cacc , < d5afb4b47e13161b3f33904d45110f9e6463bad6 (git)
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    Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.134 , ≤ 5.15.* (semver)
Unaffected: 6.1.56 , ≤ 6.1.* (semver)
Unaffected: 6.5.6 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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CPU#244 stuck for 26s!\\npstate: 83400009 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\\npc : arm_smmu_cmdq_issue_cmdlist+0x178/0xa50\\nlr : arm_smmu_cmdq_issue_cmdlist+0x150/0xa50\\nsp : ffff8000d83ef290\\nx29: ffff8000d83ef290 x28: 000000003b9aca00 x27: 0000000000000000\\nx26: ffff8000d83ef3c0 x25: da86c0812194a0e8 x24: 0000000000000000\\nx23: 0000000000000040 x22: ffff8000d83ef340 x21: ffff0000c63980c0\\nx20: 0000000000000001 x19: ffff0000c6398080 x18: 0000000000000000\\nx17: 0000000000000000 x16: 0000000000000000 x15: ffff3000b4a3bbb0\\nx14: ffff3000b4a30888 x13: ffff3000b4a3cf60 x12: 0000000000000000\\nx11: 0000000000000000 x10: 0000000000000000 x9 : ffffc08120e4d6bc\\nx8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000048cfa\\nx5 : 0000000000000000 x4 : 0000000000000001 x3 : 000000000000000a\\nx2 : 0000000080000000 x1 : 0000000000000000 x0 : 0000000000000001\\nCall trace:\\n arm_smmu_cmdq_issue_cmdlist+0x178/0xa50\\n __arm_smmu_tlb_inv_range+0x118/0x254\\n arm_smmu_tlb_inv_range_asid+0x6c/0x130\\n arm_smmu_mm_invalidate_range+0xa0/0xa4\\n __mmu_notifier_invalidate_range_end+0x88/0x120\\n unmap_vmas+0x194/0x1e0\\n unmap_region+0xb4/0x144\\n do_mas_align_munmap+0x290/0x490\\n do_mas_munmap+0xbc/0x124\\n __vm_munmap+0xa8/0x19c\\n __arm64_sys_munmap+0x28/0x50\\n invoke_syscall+0x78/0x11c\\n el0_svc_common.constprop.0+0x58/0x1c0\\n do_el0_svc+0x34/0x60\\n el0_svc+0x2c/0xd4\\n el0t_64_sync_handler+0x114/0x140\\n el0t_64_sync+0x1a4/0x1a8\\n--------------------------------------------------------------------\\n\\nNote that since 6.6-rc1 the arm_smmu_mm_invalidate_range above is renamed\\nto \\\"arm_smmu_mm_arch_invalidate_secondary_tlbs\\\", yet the problem remains.\\n\\nThe commit 06ff87bae8d3 (\\\"arm64: mm: remove unused functions and variable\\nprotoypes\\\") fixed a similar lockup on the CPU MMU side. Yet, it can occur\\nto SMMU too, since arm_smmu_mm_arch_invalidate_secondary_tlbs() is called\\ntypically next to MMU tlb flush function, e.g.\\n\\ttlb_flush_mmu_tlbonly {\\n\\t\\ttlb_flush {\\n\\t\\t\\t__flush_tlb_range {\\n\\t\\t\\t\\t// check MAX_TLBI_OPS\\n\\t\\t\\t}\\n\\t\\t}\\n\\t\\tmmu_notifier_arch_invalidate_secondary_tlbs {\\n\\t\\t\\tarm_smmu_mm_arch_invalidate_secondary_tlbs {\\n\\t\\t\\t\\t// does not check MAX_TLBI_OPS\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\nClone a CMDQ_MAX_TLBI_OPS from the MAX_TLBI_OPS in tlbflush.h, since in an\\nSVA case SMMU uses the CPU page table, so it makes sense to align with the\\ntlbflush code. Then, replace per-page TLBI commands with a single per-asid\\nTLBI command, if the request size hits this threshold.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.134\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.56\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5.6\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6\", \"versionStartIncluding\": \"5.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:16:13.665Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52484\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:16:13.665Z\", \"dateReserved\": \"2024-02-20T12:30:33.301Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-29T05:43:14.502Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Detection rules are retrieved from Rulezet.