CVE-2024-26766 (GCVE-0-2024-26766)
Vulnerability from cvelistv5
Published
2024-04-03 17:00
Modified
2025-05-04 12:54
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix sdma.h tx->num_descs off-by-one error Unfortunately the commit `fd8958efe877` introduced another error causing the `descs` array to overflow. This reults in further crashes easily reproducible by `sendmsg` system call. [ 1080.836473] general protection fault, probably for non-canonical address 0x400300015528b00a: 0000 [#1] PREEMPT SMP PTI [ 1080.869326] RIP: 0010:hfi1_ipoib_build_ib_tx_headers.constprop.0+0xe1/0x2b0 [hfi1] -- [ 1080.974535] Call Trace: [ 1080.976990] <TASK> [ 1081.021929] hfi1_ipoib_send_dma_common+0x7a/0x2e0 [hfi1] [ 1081.027364] hfi1_ipoib_send_dma_list+0x62/0x270 [hfi1] [ 1081.032633] hfi1_ipoib_send+0x112/0x300 [hfi1] [ 1081.042001] ipoib_start_xmit+0x2a9/0x2d0 [ib_ipoib] [ 1081.046978] dev_hard_start_xmit+0xc4/0x210 -- [ 1081.148347] __sys_sendmsg+0x59/0xa0 crash> ipoib_txreq 0xffff9cfeba229f00 struct ipoib_txreq { txreq = { list = { next = 0xffff9cfeba229f00, prev = 0xffff9cfeba229f00 }, descp = 0xffff9cfeba229f40, coalesce_buf = 0x0, wait = 0xffff9cfea4e69a48, complete = 0xffffffffc0fe0760 <hfi1_ipoib_sdma_complete>, packet_len = 0x46d, tlen = 0x0, num_desc = 0x0, desc_limit = 0x6, next_descq_idx = 0x45c, coalesce_idx = 0x0, flags = 0x0, descs = {{ qw = {0x8024000120dffb00, 0x4} # SDMA_DESC0_FIRST_DESC_FLAG (bit 63) }, { qw = { 0x3800014231b108, 0x4} }, { qw = { 0x310000e4ee0fcf0, 0x8} }, { qw = { 0x3000012e9f8000, 0x8} }, { qw = { 0x59000dfb9d0000, 0x8} }, { qw = { 0x78000e02e40000, 0x8} }} }, sdma_hdr = 0x400300015528b000, <<< invalid pointer in the tx request structure sdma_status = 0x0, SDMA_DESC0_LAST_DESC_FLAG (bit 62) complete = 0x0, priv = 0x0, txq = 0xffff9cfea4e69880, skb = 0xffff9d099809f400 } If an SDMA send consists of exactly 6 descriptors and requires dword padding (in the 7th descriptor), the sdma_txreq descriptor array is not properly expanded and the packet will overflow into the container structure. This results in a panic when the send completion runs. The exact panic varies depending on what elements of the container structure get corrupted. The fix is to use the correct expression in _pad_sdma_tx_descs() to test the need to expand the descriptor array. With this patch the crashes are no longer reproducible and the machine is stable.
References
Impacted products
Vendor Product Version
Linux Linux Version: d1c1ee052d25ca23735eea912f843bc7834781b4
Version: 40ac5cb6cbb01afa40881f78b4d2f559fb7065c4
Version: 6cf8f3d690bb5ad31ef0f41a6206ecf5a068d179
Version: bd57756a7e43c7127d0eca1fc5868e705fd0f7ba
Version: eeaf35f4e3b360162081de5e744cf32d6d1b0091
Version: fd8958efe8779d3db19c9124fce593ce681ac709
Version: fd8958efe8779d3db19c9124fce593ce681ac709
Version: fd8958efe8779d3db19c9124fce593ce681ac709
Version: 0ef9594936d1f078e8599a1cf683b052df2bec00
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/hfi1: Fix sdma.h tx-\u003enum_descs off-by-one error\n\nUnfortunately the commit `fd8958efe877` introduced another error\ncausing the `descs` array to overflow. This reults in further crashes\neasily reproducible by `sendmsg` system call.\n\n[ 1080.836473] general protection fault, probably for non-canonical address 0x400300015528b00a: 0000 [#1] PREEMPT SMP PTI\n[ 1080.869326] RIP: 0010:hfi1_ipoib_build_ib_tx_headers.constprop.0+0xe1/0x2b0 [hfi1]\n--\n[ 1080.974535] Call Trace:\n[ 1080.976990]  \u003cTASK\u003e\n[ 1081.021929]  hfi1_ipoib_send_dma_common+0x7a/0x2e0 [hfi1]\n[ 1081.027364]  hfi1_ipoib_send_dma_list+0x62/0x270 [hfi1]\n[ 1081.032633]  hfi1_ipoib_send+0x112/0x300 [hfi1]\n[ 1081.042001]  ipoib_start_xmit+0x2a9/0x2d0 [ib_ipoib]\n[ 1081.046978]  dev_hard_start_xmit+0xc4/0x210\n--\n[ 1081.148347]  __sys_sendmsg+0x59/0xa0\n\ncrash\u003e ipoib_txreq 0xffff9cfeba229f00\nstruct ipoib_txreq {\n  txreq = {\n    list = {\n      next = 0xffff9cfeba229f00,\n      prev = 0xffff9cfeba229f00\n    },\n    descp = 0xffff9cfeba229f40,\n    coalesce_buf = 0x0,\n    wait = 0xffff9cfea4e69a48,\n    complete = 0xffffffffc0fe0760 \u003chfi1_ipoib_sdma_complete\u003e,\n    packet_len = 0x46d,\n    tlen = 0x0,\n    num_desc = 0x0,\n    desc_limit = 0x6,\n    next_descq_idx = 0x45c,\n    coalesce_idx = 0x0,\n    flags = 0x0,\n    descs = {{\n        qw = {0x8024000120dffb00, 0x4}  # SDMA_DESC0_FIRST_DESC_FLAG (bit 63)\n      }, {\n        qw = {  0x3800014231b108, 0x4}\n      }, {\n        qw = { 0x310000e4ee0fcf0, 0x8}\n      }, {\n        qw = {  0x3000012e9f8000, 0x8}\n      }, {\n        qw = {  0x59000dfb9d0000, 0x8}\n      }, {\n        qw = {  0x78000e02e40000, 0x8}\n      }}\n  },\n  sdma_hdr =  0x400300015528b000,  \u003c\u003c\u003c invalid pointer in the tx request structure\n  sdma_status = 0x0,                   SDMA_DESC0_LAST_DESC_FLAG (bit 62)\n  complete = 0x0,\n  priv = 0x0,\n  txq = 0xffff9cfea4e69880,\n  skb = 0xffff9d099809f400\n}\n\nIf an SDMA send consists of exactly 6 descriptors and requires dword\npadding (in the 7th descriptor), the sdma_txreq descriptor array is not\nproperly expanded and the packet will overflow into the container\nstructure. This results in a panic when the send completion runs. The\nexact panic varies depending on what elements of the container structure\nget corrupted. The fix is to use the correct expression in\n_pad_sdma_tx_descs() to test the need to expand the descriptor array.\n\nWith this patch the crashes are no longer reproducible and the machine is\nstable."
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{\"title\": \"IB/hfi1: Fix sdma.h tx-\u003enum_descs off-by-one error\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"d1c1ee052d25ca23735eea912f843bc7834781b4\", \"lessThan\": \"115b7f3bc1dce590a6851a2dcf23dc1100c49790\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"40ac5cb6cbb01afa40881f78b4d2f559fb7065c4\", \"lessThan\": \"5833024a9856f454a964a198c63a57e59e07baf5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6cf8f3d690bb5ad31ef0f41a6206ecf5a068d179\", \"lessThan\": \"3f38d22e645e2e994979426ea5a35186102ff3c2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bd57756a7e43c7127d0eca1fc5868e705fd0f7ba\", \"lessThan\": \"47ae64df23ed1318e27bd9844e135a5e1c0e6e39\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"eeaf35f4e3b360162081de5e744cf32d6d1b0091\", \"lessThan\": \"52dc9a7a573dbf778625a0efca0fca55489f084b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fd8958efe8779d3db19c9124fce593ce681ac709\", \"lessThan\": \"a2fef1d81becf4ff60e1a249477464eae3c3bc2a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fd8958efe8779d3db19c9124fce593ce681ac709\", \"lessThan\": \"9034a1bec35e9f725315a3bb6002ef39666114d9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fd8958efe8779d3db19c9124fce593ce681ac709\", \"lessThan\": \"e6f57c6881916df39db7d95981a8ad2b9c3458d6\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/infiniband/hw/hfi1/sdma.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.3\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.3\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.308\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.270\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.211\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.150\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.80\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/infiniband/hw/hfi1/sdma.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/115b7f3bc1dce590a6851a2dcf23dc1100c49790\"}, {\"url\": \"https://git.kernel.org/stable/c/5833024a9856f454a964a198c63a57e59e07baf5\"}, {\"url\": \"https://git.kernel.org/stable/c/3f38d22e645e2e994979426ea5a35186102ff3c2\"}, {\"url\": \"https://git.kernel.org/stable/c/47ae64df23ed1318e27bd9844e135a5e1c0e6e39\"}, {\"url\": \"https://git.kernel.org/stable/c/52dc9a7a573dbf778625a0efca0fca55489f084b\"}, {\"url\": \"https://git.kernel.org/stable/c/a2fef1d81becf4ff60e1a249477464eae3c3bc2a\"}, {\"url\": \"https://git.kernel.org/stable/c/9034a1bec35e9f725315a3bb6002ef39666114d9\"}, {\"url\": \"https://git.kernel.org/stable/c/e6f57c6881916df39db7d95981a8ad2b9c3458d6\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nIB/hfi1: Fix sdma.h tx-\u003enum_descs off-by-one error\\n\\nUnfortunately the commit `fd8958efe877` introduced another error\\ncausing the `descs` array to overflow. This reults in further crashes\\neasily reproducible by `sendmsg` system call.\\n\\n[ 1080.836473] general protection fault, probably for non-canonical address 0x400300015528b00a: 0000 [#1] PREEMPT SMP PTI\\n[ 1080.869326] RIP: 0010:hfi1_ipoib_build_ib_tx_headers.constprop.0+0xe1/0x2b0 [hfi1]\\n--\\n[ 1080.974535] Call Trace:\\n[ 1080.976990]  \u003cTASK\u003e\\n[ 1081.021929]  hfi1_ipoib_send_dma_common+0x7a/0x2e0 [hfi1]\\n[ 1081.027364]  hfi1_ipoib_send_dma_list+0x62/0x270 [hfi1]\\n[ 1081.032633]  hfi1_ipoib_send+0x112/0x300 [hfi1]\\n[ 1081.042001]  ipoib_start_xmit+0x2a9/0x2d0 [ib_ipoib]\\n[ 1081.046978]  dev_hard_start_xmit+0xc4/0x210\\n--\\n[ 1081.148347]  __sys_sendmsg+0x59/0xa0\\n\\ncrash\u003e ipoib_txreq 0xffff9cfeba229f00\\nstruct ipoib_txreq {\\n  txreq = {\\n    list = {\\n      next = 0xffff9cfeba229f00,\\n      prev = 0xffff9cfeba229f00\\n    },\\n    descp = 0xffff9cfeba229f40,\\n    coalesce_buf = 0x0,\\n    wait = 0xffff9cfea4e69a48,\\n    complete = 0xffffffffc0fe0760 \u003chfi1_ipoib_sdma_complete\u003e,\\n    packet_len = 0x46d,\\n    tlen = 0x0,\\n    num_desc = 0x0,\\n    desc_limit = 0x6,\\n    next_descq_idx = 0x45c,\\n    coalesce_idx = 0x0,\\n    flags = 0x0,\\n    descs = {{\\n        qw = {0x8024000120dffb00, 0x4}  # SDMA_DESC0_FIRST_DESC_FLAG (bit 63)\\n      }, {\\n        qw = {  0x3800014231b108, 0x4}\\n      }, {\\n        qw = { 0x310000e4ee0fcf0, 0x8}\\n      }, {\\n        qw = {  0x3000012e9f8000, 0x8}\\n      }, {\\n        qw = {  0x59000dfb9d0000, 0x8}\\n      }, {\\n        qw = {  0x78000e02e40000, 0x8}\\n      }}\\n  },\\n  sdma_hdr =  0x400300015528b000,  \u003c\u003c\u003c invalid pointer in the tx request structure\\n  sdma_status = 0x0,                   SDMA_DESC0_LAST_DESC_FLAG (bit 62)\\n  complete = 0x0,\\n  priv = 0x0,\\n  txq = 0xffff9cfea4e69880,\\n  skb = 0xffff9d099809f400\\n}\\n\\nIf an SDMA send consists of exactly 6 descriptors and requires dword\\npadding (in the 7th descriptor), the sdma_txreq descriptor array is not\\nproperly expanded and the packet will overflow into the container\\nstructure. This results in a panic when the send completion runs. The\\nexact panic varies depending on what elements of the container structure\\nget corrupted. The fix is to use the correct expression in\\n_pad_sdma_tx_descs() to test the need to expand the descriptor array.\\n\\nWith this patch the crashes are no longer reproducible and the machine is\\nstable.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.308\", \"versionStartIncluding\": \"4.19.291\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.270\", \"versionStartIncluding\": \"5.4.251\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.211\", \"versionStartIncluding\": \"5.10.188\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.150\", \"versionStartIncluding\": \"5.15.99\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.80\", \"versionStartIncluding\": \"6.1.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.19\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.7\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.2.3\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:56:01.450Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26766\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T08:56:01.450Z\", \"dateReserved\": \"2024-02-19T14:20:24.173Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-03T17:00:48.642Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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