CVE-2025-23135 (GCVE-0-2025-23135)
Vulnerability from cvelistv5
Published
2025-04-16 14:13
Modified
2025-05-26 05:19
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Teardown riscv specific bits after kvm_exit During a module removal, kvm_exit invokes arch specific disable call which disables AIA. However, we invoke aia_exit before kvm_exit resulting in the following warning. KVM kernel module can't be inserted afterwards due to inconsistent state of IRQ. [25469.031389] percpu IRQ 31 still enabled on CPU0! [25469.031732] WARNING: CPU: 3 PID: 943 at kernel/irq/manage.c:2476 __free_percpu_irq+0xa2/0x150 [25469.031804] Modules linked in: kvm(-) [25469.031848] CPU: 3 UID: 0 PID: 943 Comm: rmmod Not tainted 6.14.0-rc5-06947-g91c763118f47-dirty #2 [25469.031905] Hardware name: riscv-virtio,qemu (DT) [25469.031928] epc : __free_percpu_irq+0xa2/0x150 [25469.031976] ra : __free_percpu_irq+0xa2/0x150 [25469.032197] epc : ffffffff8007db1e ra : ffffffff8007db1e sp : ff2000000088bd50 [25469.032241] gp : ffffffff8131cef8 tp : ff60000080b96400 t0 : ff2000000088baf8 [25469.032285] t1 : fffffffffffffffc t2 : 5249207570637265 s0 : ff2000000088bd90 [25469.032329] s1 : ff60000098b21080 a0 : 037d527a15eb4f00 a1 : 037d527a15eb4f00 [25469.032372] a2 : 0000000000000023 a3 : 0000000000000001 a4 : ffffffff8122dbf8 [25469.032410] a5 : 0000000000000fff a6 : 0000000000000000 a7 : ffffffff8122dc10 [25469.032448] s2 : ff60000080c22eb0 s3 : 0000000200000022 s4 : 000000000000001f [25469.032488] s5 : ff60000080c22e00 s6 : ffffffff80c351c0 s7 : 0000000000000000 [25469.032582] s8 : 0000000000000003 s9 : 000055556b7fb490 s10: 00007ffff0e12fa0 [25469.032621] s11: 00007ffff0e13e9a t3 : ffffffff81354ac7 t4 : ffffffff81354ac7 [25469.032664] t5 : ffffffff81354ac8 t6 : ffffffff81354ac7 [25469.032698] status: 0000000200000100 badaddr: ffffffff8007db1e cause: 0000000000000003 [25469.032738] [<ffffffff8007db1e>] __free_percpu_irq+0xa2/0x150 [25469.032797] [<ffffffff8007dbfc>] free_percpu_irq+0x30/0x5e [25469.032856] [<ffffffff013a57dc>] kvm_riscv_aia_exit+0x40/0x42 [kvm] [25469.033947] [<ffffffff013b4e82>] cleanup_module+0x10/0x32 [kvm] [25469.035300] [<ffffffff8009b150>] __riscv_sys_delete_module+0x18e/0x1fc [25469.035374] [<ffffffff8000c1ca>] syscall_handler+0x3a/0x46 [25469.035456] [<ffffffff809ec9a4>] do_trap_ecall_u+0x72/0x134 [25469.035536] [<ffffffff809f5e18>] handle_exception+0x148/0x156 Invoke aia_exit and other arch specific cleanup functions after kvm_exit so that disable gets a chance to be called first before exit.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1521cc04f0b6e737ff30105aa57fa9dde8493231
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1edb2de48616b11ee05e9a65d74c70abcb6d9939
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2d117e67f318303f6ab699a5511d1fac3f170545
Impacted products
Vendor Product Version
Linux Linux Version: 54e43320c2ba0c70258a3aea690da38c6ea3293c
Version: 54e43320c2ba0c70258a3aea690da38c6ea3293c
Version: 54e43320c2ba0c70258a3aea690da38c6ea3293c
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   Linux Linux Version: 6.4
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/riscv/kvm/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1edb2de48616b11ee05e9a65d74c70abcb6d9939",
              "status": "affected",
              "version": "54e43320c2ba0c70258a3aea690da38c6ea3293c",
              "versionType": "git"
            },
            {
              "lessThan": "1521cc04f0b6e737ff30105aa57fa9dde8493231",
              "status": "affected",
              "version": "54e43320c2ba0c70258a3aea690da38c6ea3293c",
              "versionType": "git"
            },
            {
              "lessThan": "2d117e67f318303f6ab699a5511d1fac3f170545",
              "status": "affected",
              "version": "54e43320c2ba0c70258a3aea690da38c6ea3293c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/riscv/kvm/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.11",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.2",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRISC-V: KVM: Teardown riscv specific bits after kvm_exit\n\nDuring a module removal, kvm_exit invokes arch specific disable\ncall which disables AIA. However, we invoke aia_exit before kvm_exit\nresulting in the following warning. KVM kernel module can\u0027t be inserted\nafterwards due to inconsistent state of IRQ.\n\n[25469.031389] percpu IRQ 31 still enabled on CPU0!\n[25469.031732] WARNING: CPU: 3 PID: 943 at kernel/irq/manage.c:2476 __free_percpu_irq+0xa2/0x150\n[25469.031804] Modules linked in: kvm(-)\n[25469.031848] CPU: 3 UID: 0 PID: 943 Comm: rmmod Not tainted 6.14.0-rc5-06947-g91c763118f47-dirty #2\n[25469.031905] Hardware name: riscv-virtio,qemu (DT)\n[25469.031928] epc : __free_percpu_irq+0xa2/0x150\n[25469.031976]  ra : __free_percpu_irq+0xa2/0x150\n[25469.032197] epc : ffffffff8007db1e ra : ffffffff8007db1e sp : ff2000000088bd50\n[25469.032241]  gp : ffffffff8131cef8 tp : ff60000080b96400 t0 : ff2000000088baf8\n[25469.032285]  t1 : fffffffffffffffc t2 : 5249207570637265 s0 : ff2000000088bd90\n[25469.032329]  s1 : ff60000098b21080 a0 : 037d527a15eb4f00 a1 : 037d527a15eb4f00\n[25469.032372]  a2 : 0000000000000023 a3 : 0000000000000001 a4 : ffffffff8122dbf8\n[25469.032410]  a5 : 0000000000000fff a6 : 0000000000000000 a7 : ffffffff8122dc10\n[25469.032448]  s2 : ff60000080c22eb0 s3 : 0000000200000022 s4 : 000000000000001f\n[25469.032488]  s5 : ff60000080c22e00 s6 : ffffffff80c351c0 s7 : 0000000000000000\n[25469.032582]  s8 : 0000000000000003 s9 : 000055556b7fb490 s10: 00007ffff0e12fa0\n[25469.032621]  s11: 00007ffff0e13e9a t3 : ffffffff81354ac7 t4 : ffffffff81354ac7\n[25469.032664]  t5 : ffffffff81354ac8 t6 : ffffffff81354ac7\n[25469.032698] status: 0000000200000100 badaddr: ffffffff8007db1e cause: 0000000000000003\n[25469.032738] [\u003cffffffff8007db1e\u003e] __free_percpu_irq+0xa2/0x150\n[25469.032797] [\u003cffffffff8007dbfc\u003e] free_percpu_irq+0x30/0x5e\n[25469.032856] [\u003cffffffff013a57dc\u003e] kvm_riscv_aia_exit+0x40/0x42 [kvm]\n[25469.033947] [\u003cffffffff013b4e82\u003e] cleanup_module+0x10/0x32 [kvm]\n[25469.035300] [\u003cffffffff8009b150\u003e] __riscv_sys_delete_module+0x18e/0x1fc\n[25469.035374] [\u003cffffffff8000c1ca\u003e] syscall_handler+0x3a/0x46\n[25469.035456] [\u003cffffffff809ec9a4\u003e] do_trap_ecall_u+0x72/0x134\n[25469.035536] [\u003cffffffff809f5e18\u003e] handle_exception+0x148/0x156\n\nInvoke aia_exit and other arch specific cleanup functions after kvm_exit\nso that disable gets a chance to be called first before exit."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:19:13.878Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1edb2de48616b11ee05e9a65d74c70abcb6d9939"
        },
        {
          "url": "https://git.kernel.org/stable/c/1521cc04f0b6e737ff30105aa57fa9dde8493231"
        },
        {
          "url": "https://git.kernel.org/stable/c/2d117e67f318303f6ab699a5511d1fac3f170545"
        }
      ],
      "title": "RISC-V: KVM: Teardown riscv specific bits after kvm_exit",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-23135",
    "datePublished": "2025-04-16T14:13:15.795Z",
    "dateReserved": "2025-01-11T14:28:41.511Z",
    "dateUpdated": "2025-05-26T05:19:13.878Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-23135\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:16:07.883\",\"lastModified\":\"2025-04-17T20:22:16.240\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nRISC-V: KVM: Teardown riscv specific bits after kvm_exit\\n\\nDuring a module removal, kvm_exit invokes arch specific disable\\ncall which disables AIA. However, we invoke aia_exit before kvm_exit\\nresulting in the following warning. KVM kernel module can\u0027t be inserted\\nafterwards due to inconsistent state of IRQ.\\n\\n[25469.031389] percpu IRQ 31 still enabled on CPU0!\\n[25469.031732] WARNING: CPU: 3 PID: 943 at kernel/irq/manage.c:2476 __free_percpu_irq+0xa2/0x150\\n[25469.031804] Modules linked in: kvm(-)\\n[25469.031848] CPU: 3 UID: 0 PID: 943 Comm: rmmod Not tainted 6.14.0-rc5-06947-g91c763118f47-dirty #2\\n[25469.031905] Hardware name: riscv-virtio,qemu (DT)\\n[25469.031928] epc : __free_percpu_irq+0xa2/0x150\\n[25469.031976]  ra : __free_percpu_irq+0xa2/0x150\\n[25469.032197] epc : ffffffff8007db1e ra : ffffffff8007db1e sp : ff2000000088bd50\\n[25469.032241]  gp : ffffffff8131cef8 tp : ff60000080b96400 t0 : ff2000000088baf8\\n[25469.032285]  t1 : fffffffffffffffc t2 : 5249207570637265 s0 : ff2000000088bd90\\n[25469.032329]  s1 : ff60000098b21080 a0 : 037d527a15eb4f00 a1 : 037d527a15eb4f00\\n[25469.032372]  a2 : 0000000000000023 a3 : 0000000000000001 a4 : ffffffff8122dbf8\\n[25469.032410]  a5 : 0000000000000fff a6 : 0000000000000000 a7 : ffffffff8122dc10\\n[25469.032448]  s2 : ff60000080c22eb0 s3 : 0000000200000022 s4 : 000000000000001f\\n[25469.032488]  s5 : ff60000080c22e00 s6 : ffffffff80c351c0 s7 : 0000000000000000\\n[25469.032582]  s8 : 0000000000000003 s9 : 000055556b7fb490 s10: 00007ffff0e12fa0\\n[25469.032621]  s11: 00007ffff0e13e9a t3 : ffffffff81354ac7 t4 : ffffffff81354ac7\\n[25469.032664]  t5 : ffffffff81354ac8 t6 : ffffffff81354ac7\\n[25469.032698] status: 0000000200000100 badaddr: ffffffff8007db1e cause: 0000000000000003\\n[25469.032738] [\u003cffffffff8007db1e\u003e] __free_percpu_irq+0xa2/0x150\\n[25469.032797] [\u003cffffffff8007dbfc\u003e] free_percpu_irq+0x30/0x5e\\n[25469.032856] [\u003cffffffff013a57dc\u003e] kvm_riscv_aia_exit+0x40/0x42 [kvm]\\n[25469.033947] [\u003cffffffff013b4e82\u003e] cleanup_module+0x10/0x32 [kvm]\\n[25469.035300] [\u003cffffffff8009b150\u003e] __riscv_sys_delete_module+0x18e/0x1fc\\n[25469.035374] [\u003cffffffff8000c1ca\u003e] syscall_handler+0x3a/0x46\\n[25469.035456] [\u003cffffffff809ec9a4\u003e] do_trap_ecall_u+0x72/0x134\\n[25469.035536] [\u003cffffffff809f5e18\u003e] handle_exception+0x148/0x156\\n\\nInvoke aia_exit and other arch specific cleanup functions after kvm_exit\\nso that disable gets a chance to be called first before exit.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1521cc04f0b6e737ff30105aa57fa9dde8493231\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1edb2de48616b11ee05e9a65d74c70abcb6d9939\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2d117e67f318303f6ab699a5511d1fac3f170545\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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