CVE-2024-44984 (GCVE-0-2024-44984)

Vulnerability from cvelistv5 – Published: 2024-09-04 19:54 – Updated: 2025-05-04 09:30
VLAI?
Title
bnxt_en: Fix double DMA unmapping for XDP_REDIRECT
Summary
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix double DMA unmapping for XDP_REDIRECT Remove the dma_unmap_page_attrs() call in the driver's XDP_REDIRECT code path. This should have been removed when we let the page pool handle the DMA mapping. This bug causes the warning: WARNING: CPU: 7 PID: 59 at drivers/iommu/dma-iommu.c:1198 iommu_dma_unmap_page+0xd5/0x100 CPU: 7 PID: 59 Comm: ksoftirqd/7 Tainted: G W 6.8.0-1010-gcp #11-Ubuntu Hardware name: Dell Inc. PowerEdge R7525/0PYVT1, BIOS 2.15.2 04/02/2024 RIP: 0010:iommu_dma_unmap_page+0xd5/0x100 Code: 89 ee 48 89 df e8 cb f2 69 ff 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9 31 f6 31 ff 45 31 c0 e9 ab 17 71 00 <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9 RSP: 0018:ffffab1fc0597a48 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff99ff838280c8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffab1fc0597a78 R08: 0000000000000002 R09: ffffab1fc0597c1c R10: ffffab1fc0597cd3 R11: ffff99ffe375acd8 R12: 00000000e65b9000 R13: 0000000000000050 R14: 0000000000001000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff9a06efb80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000565c34c37210 CR3: 00000005c7e3e000 CR4: 0000000000350ef0 ? show_regs+0x6d/0x80 ? __warn+0x89/0x150 ? iommu_dma_unmap_page+0xd5/0x100 ? report_bug+0x16a/0x190 ? handle_bug+0x51/0xa0 ? exc_invalid_op+0x18/0x80 ? iommu_dma_unmap_page+0xd5/0x100 ? iommu_dma_unmap_page+0x35/0x100 dma_unmap_page_attrs+0x55/0x220 ? bpf_prog_4d7e87c0d30db711_xdp_dispatcher+0x64/0x9f bnxt_rx_xdp+0x237/0x520 [bnxt_en] bnxt_rx_pkt+0x640/0xdd0 [bnxt_en] __bnxt_poll_work+0x1a1/0x3d0 [bnxt_en] bnxt_poll+0xaa/0x1e0 [bnxt_en] __napi_poll+0x33/0x1e0 net_rx_action+0x18a/0x2f0
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 578fcfd26e2a1d0e687b347057959228567e2af8 , < fa4e6ae38574d0fc5596272bee64727d8ab7052b (git)
Affected: 578fcfd26e2a1d0e687b347057959228567e2af8 , < 95a305ba259b685780ed62ea2295aa2feb2d6c0c (git)
Affected: 578fcfd26e2a1d0e687b347057959228567e2af8 , < 8baeef7616d5194045c5a6b97fd1246b87c55b13 (git)
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    Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.48 , ≤ 6.6.* (semver)
Unaffected: 6.10.7 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fa4e6ae38574d0fc5596272bee64727d8ab7052b",
              "status": "affected",
              "version": "578fcfd26e2a1d0e687b347057959228567e2af8",
              "versionType": "git"
            },
            {
              "lessThan": "95a305ba259b685780ed62ea2295aa2feb2d6c0c",
              "status": "affected",
              "version": "578fcfd26e2a1d0e687b347057959228567e2af8",
              "versionType": "git"
            },
            {
              "lessThan": "8baeef7616d5194045c5a6b97fd1246b87c55b13",
              "status": "affected",
              "version": "578fcfd26e2a1d0e687b347057959228567e2af8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.48",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.48",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.7",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix double DMA unmapping for XDP_REDIRECT\n\nRemove the dma_unmap_page_attrs() call in the driver\u0027s XDP_REDIRECT\ncode path.  This should have been removed when we let the page pool\nhandle the DMA mapping.  This bug causes the warning:\n\nWARNING: CPU: 7 PID: 59 at drivers/iommu/dma-iommu.c:1198 iommu_dma_unmap_page+0xd5/0x100\nCPU: 7 PID: 59 Comm: ksoftirqd/7 Tainted: G        W          6.8.0-1010-gcp #11-Ubuntu\nHardware name: Dell Inc. PowerEdge R7525/0PYVT1, BIOS 2.15.2 04/02/2024\nRIP: 0010:iommu_dma_unmap_page+0xd5/0x100\nCode: 89 ee 48 89 df e8 cb f2 69 ff 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9 31 f6 31 ff 45 31 c0 e9 ab 17 71 00 \u003c0f\u003e 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9\nRSP: 0018:ffffab1fc0597a48 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff99ff838280c8 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\nRBP: ffffab1fc0597a78 R08: 0000000000000002 R09: ffffab1fc0597c1c\nR10: ffffab1fc0597cd3 R11: ffff99ffe375acd8 R12: 00000000e65b9000\nR13: 0000000000000050 R14: 0000000000001000 R15: 0000000000000002\nFS:  0000000000000000(0000) GS:ffff9a06efb80000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000565c34c37210 CR3: 00000005c7e3e000 CR4: 0000000000350ef0\n? show_regs+0x6d/0x80\n? __warn+0x89/0x150\n? iommu_dma_unmap_page+0xd5/0x100\n? report_bug+0x16a/0x190\n? handle_bug+0x51/0xa0\n? exc_invalid_op+0x18/0x80\n? iommu_dma_unmap_page+0xd5/0x100\n? iommu_dma_unmap_page+0x35/0x100\ndma_unmap_page_attrs+0x55/0x220\n? bpf_prog_4d7e87c0d30db711_xdp_dispatcher+0x64/0x9f\nbnxt_rx_xdp+0x237/0x520 [bnxt_en]\nbnxt_rx_pkt+0x640/0xdd0 [bnxt_en]\n__bnxt_poll_work+0x1a1/0x3d0 [bnxt_en]\nbnxt_poll+0xaa/0x1e0 [bnxt_en]\n__napi_poll+0x33/0x1e0\nnet_rx_action+0x18a/0x2f0"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:30:24.766Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fa4e6ae38574d0fc5596272bee64727d8ab7052b"
        },
        {
          "url": "https://git.kernel.org/stable/c/95a305ba259b685780ed62ea2295aa2feb2d6c0c"
        },
        {
          "url": "https://git.kernel.org/stable/c/8baeef7616d5194045c5a6b97fd1246b87c55b13"
        }
      ],
      "title": "bnxt_en: Fix double DMA unmapping for XDP_REDIRECT",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-44984",
    "datePublished": "2024-09-04T19:54:33.487Z",
    "dateReserved": "2024-08-21T05:34:56.670Z",
    "dateUpdated": "2025-05-04T09:30:24.766Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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