CVE-2024-26766 (GCVE-0-2024-26766)

Vulnerability from cvelistv5 – Published: 2024-04-03 17:00 – Updated: 2025-05-04 12:54
VLAI?
Title
IB/hfi1: Fix sdma.h tx->num_descs off-by-one error
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d1c1ee052d25ca23735eea912f843bc7834781b4 , < 115b7f3bc1dce590a6851a2dcf23dc1100c49790 (git)
Affected: 40ac5cb6cbb01afa40881f78b4d2f559fb7065c4 , < 5833024a9856f454a964a198c63a57e59e07baf5 (git)
Affected: 6cf8f3d690bb5ad31ef0f41a6206ecf5a068d179 , < 3f38d22e645e2e994979426ea5a35186102ff3c2 (git)
Affected: bd57756a7e43c7127d0eca1fc5868e705fd0f7ba , < 47ae64df23ed1318e27bd9844e135a5e1c0e6e39 (git)
Affected: eeaf35f4e3b360162081de5e744cf32d6d1b0091 , < 52dc9a7a573dbf778625a0efca0fca55489f084b (git)
Affected: fd8958efe8779d3db19c9124fce593ce681ac709 , < a2fef1d81becf4ff60e1a249477464eae3c3bc2a (git)
Affected: fd8958efe8779d3db19c9124fce593ce681ac709 , < 9034a1bec35e9f725315a3bb6002ef39666114d9 (git)
Affected: fd8958efe8779d3db19c9124fce593ce681ac709 , < e6f57c6881916df39db7d95981a8ad2b9c3458d6 (git)
Affected: 0ef9594936d1f078e8599a1cf683b052df2bec00 (git)
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    Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 4.19.308 , ≤ 4.19.* (semver)
Unaffected: 5.4.270 , ≤ 5.4.* (semver)
Unaffected: 5.10.211 , ≤ 5.10.* (semver)
Unaffected: 5.15.150 , ≤ 5.15.* (semver)
Unaffected: 6.1.80 , ≤ 6.1.* (semver)
Unaffected: 6.6.19 , ≤ 6.6.* (semver)
Unaffected: 6.7.7 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
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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\": 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\"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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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.