CVE-2022-50129 (GCVE-0-2022-50129)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:02 – Updated: 2025-06-18 11:02
VLAI?
Title
RDMA/srpt: Fix a use-after-free
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Fix a use-after-free Change the LIO port members inside struct srpt_port from regular members into pointers. Allocate the LIO port data structures from inside srpt_make_tport() and free these from inside srpt_make_tport(). Keep struct srpt_device as long as either an RDMA port or a LIO target port is associated with it. This patch decouples the lifetime of struct srpt_port (controlled by the RDMA core) and struct srpt_port_id (controlled by LIO). This patch fixes the following KASAN complaint: BUG: KASAN: use-after-free in srpt_enable_tpg+0x31/0x70 [ib_srpt] Read of size 8 at addr ffff888141cc34b8 by task check/5093 Call Trace: <TASK> show_stack+0x4e/0x53 dump_stack_lvl+0x51/0x66 print_address_description.constprop.0.cold+0xea/0x41e print_report.cold+0x90/0x205 kasan_report+0xb9/0xf0 __asan_load8+0x69/0x90 srpt_enable_tpg+0x31/0x70 [ib_srpt] target_fabric_tpg_base_enable_store+0xe2/0x140 [target_core_mod] configfs_write_iter+0x18b/0x210 new_sync_write+0x1f2/0x2f0 vfs_write+0x3e3/0x540 ksys_write+0xbb/0x140 __x64_sys_write+0x42/0x50 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 </TASK>
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a42d985bd5b234da8b61347a78dc3057bf7bb94d , < de95b52d9aabc979166aba81ccbe623aaf9c16a1 (git)
Affected: a42d985bd5b234da8b61347a78dc3057bf7bb94d , < e60d7e2462bf57273563c4e00dbfa79ee973b9e2 (git)
Affected: a42d985bd5b234da8b61347a78dc3057bf7bb94d , < 4ee8c39968a648d58b273582d4b021044a41ee5e (git)
Affected: a42d985bd5b234da8b61347a78dc3057bf7bb94d , < 388326bb1c32fcd09371c1d494af71471ef3a04b (git)
Affected: a42d985bd5b234da8b61347a78dc3057bf7bb94d , < b5605148e6ce36bb21020d49010b617693933128 (git)
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    Linux Linux Affected: 3.3
Unaffected: 0 , < 3.3 (semver)
Unaffected: 5.10.137 , ≤ 5.10.* (semver)
Unaffected: 5.15.61 , ≤ 5.15.* (semver)
Unaffected: 5.18.18 , ≤ 5.18.* (semver)
Unaffected: 5.19.2 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/infiniband/ulp/srpt/ib_srpt.c",
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "6.0",
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      "cpeApplicability": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/srpt: Fix a use-after-free\n\nChange the LIO port members inside struct srpt_port from regular members\ninto pointers. Allocate the LIO port data structures from inside\nsrpt_make_tport() and free these from inside srpt_make_tport(). Keep\nstruct srpt_device as long as either an RDMA port or a LIO target port is\nassociated with it. This patch decouples the lifetime of struct srpt_port\n(controlled by the RDMA core) and struct srpt_port_id (controlled by LIO).\nThis patch fixes the following KASAN complaint:\n\n  BUG: KASAN: use-after-free in srpt_enable_tpg+0x31/0x70 [ib_srpt]\n  Read of size 8 at addr ffff888141cc34b8 by task check/5093\n\n  Call Trace:\n   \u003cTASK\u003e\n   show_stack+0x4e/0x53\n   dump_stack_lvl+0x51/0x66\n   print_address_description.constprop.0.cold+0xea/0x41e\n   print_report.cold+0x90/0x205\n   kasan_report+0xb9/0xf0\n   __asan_load8+0x69/0x90\n   srpt_enable_tpg+0x31/0x70 [ib_srpt]\n   target_fabric_tpg_base_enable_store+0xe2/0x140 [target_core_mod]\n   configfs_write_iter+0x18b/0x210\n   new_sync_write+0x1f2/0x2f0\n   vfs_write+0x3e3/0x540\n   ksys_write+0xbb/0x140\n   __x64_sys_write+0x42/0x50\n   do_syscall_64+0x34/0x80\n   entry_SYSCALL_64_after_hwframe+0x46/0xb0\n   \u003c/TASK\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:02:55.576Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/de95b52d9aabc979166aba81ccbe623aaf9c16a1"
        },
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          "url": "https://git.kernel.org/stable/c/e60d7e2462bf57273563c4e00dbfa79ee973b9e2"
        },
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        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/b5605148e6ce36bb21020d49010b617693933128"
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      ],
      "title": "RDMA/srpt: Fix a use-after-free",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50129",
    "datePublished": "2025-06-18T11:02:55.576Z",
    "dateReserved": "2025-06-18T10:57:27.418Z",
    "dateUpdated": "2025-06-18T11:02:55.576Z",
    "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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