ghsa-72jq-rf44-32c6
Vulnerability from github
Published
2025-10-04 18:31
Modified
2025-10-04 18:31
Details

In the Linux kernel, the following vulnerability has been resolved:

IB/mad: Don't call to function that might sleep while in atomic context

Tracepoints are not allowed to sleep, as such the following splat is generated due to call to ib_query_pkey() in atomic context.

WARNING: CPU: 0 PID: 1888000 at kernel/trace/ring_buffer.c:2492 rb_commit+0xc1/0x220 CPU: 0 PID: 1888000 Comm: kworker/u9:0 Kdump: loaded Tainted: G OE --------- - - 4.18.0-305.3.1.el8.x86_64 #1 Hardware name: Red Hat KVM, BIOS 1.13.0-2.module_el8.3.0+555+a55c8938 04/01/2014 Workqueue: ib-comp-unb-wq ib_cq_poll_work [ib_core] RIP: 0010:rb_commit+0xc1/0x220 RSP: 0000:ffffa8ac80f9bca0 EFLAGS: 00010202 RAX: ffff8951c7c01300 RBX: ffff8951c7c14a00 RCX: 0000000000000246 RDX: ffff8951c707c000 RSI: ffff8951c707c57c RDI: ffff8951c7c14a00 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffff8951c7c01300 R11: 0000000000000001 R12: 0000000000000246 R13: 0000000000000000 R14: ffffffff964c70c0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8951fbc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f20e8f39010 CR3: 000000002ca10005 CR4: 0000000000170ef0 Call Trace: ring_buffer_unlock_commit+0x1d/0xa0 trace_buffer_unlock_commit_regs+0x3b/0x1b0 trace_event_buffer_commit+0x67/0x1d0 trace_event_raw_event_ib_mad_recv_done_handler+0x11c/0x160 [ib_core] ib_mad_recv_done+0x48b/0xc10 [ib_core] ? trace_event_raw_event_cq_poll+0x6f/0xb0 [ib_core] __ib_process_cq+0x91/0x1c0 [ib_core] ib_cq_poll_work+0x26/0x80 [ib_core] process_one_work+0x1a7/0x360 ? create_worker+0x1a0/0x1a0 worker_thread+0x30/0x390 ? create_worker+0x1a0/0x1a0 kthread+0x116/0x130 ? kthread_flush_work_fn+0x10/0x10 ret_from_fork+0x35/0x40 ---[ end trace 78ba8509d3830a16 ]---

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2022-50472"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-04T16:15:43Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mad: Don\u0027t call to function that might sleep while in atomic context\n\nTracepoints are not allowed to sleep, as such the following splat is\ngenerated due to call to ib_query_pkey() in atomic context.\n\nWARNING: CPU: 0 PID: 1888000 at kernel/trace/ring_buffer.c:2492 rb_commit+0xc1/0x220\nCPU: 0 PID: 1888000 Comm: kworker/u9:0 Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0-305.3.1.el8.x86_64 #1\n Hardware name: Red Hat KVM, BIOS 1.13.0-2.module_el8.3.0+555+a55c8938 04/01/2014\n Workqueue: ib-comp-unb-wq ib_cq_poll_work [ib_core]\n RIP: 0010:rb_commit+0xc1/0x220\n RSP: 0000:ffffa8ac80f9bca0 EFLAGS: 00010202\n RAX: ffff8951c7c01300 RBX: ffff8951c7c14a00 RCX: 0000000000000246\n RDX: ffff8951c707c000 RSI: ffff8951c707c57c RDI: ffff8951c7c14a00\n RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\n R10: ffff8951c7c01300 R11: 0000000000000001 R12: 0000000000000246\n R13: 0000000000000000 R14: ffffffff964c70c0 R15: 0000000000000000\n FS:  0000000000000000(0000) GS:ffff8951fbc00000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f20e8f39010 CR3: 000000002ca10005 CR4: 0000000000170ef0\n Call Trace:\n  ring_buffer_unlock_commit+0x1d/0xa0\n  trace_buffer_unlock_commit_regs+0x3b/0x1b0\n  trace_event_buffer_commit+0x67/0x1d0\n  trace_event_raw_event_ib_mad_recv_done_handler+0x11c/0x160 [ib_core]\n  ib_mad_recv_done+0x48b/0xc10 [ib_core]\n  ? trace_event_raw_event_cq_poll+0x6f/0xb0 [ib_core]\n  __ib_process_cq+0x91/0x1c0 [ib_core]\n  ib_cq_poll_work+0x26/0x80 [ib_core]\n  process_one_work+0x1a7/0x360\n  ? create_worker+0x1a0/0x1a0\n  worker_thread+0x30/0x390\n  ? create_worker+0x1a0/0x1a0\n  kthread+0x116/0x130\n  ? kthread_flush_work_fn+0x10/0x10\n  ret_from_fork+0x35/0x40\n ---[ end trace 78ba8509d3830a16 ]---",
  "id": "GHSA-72jq-rf44-32c6",
  "modified": "2025-10-04T18:31:13Z",
  "published": "2025-10-04T18:31:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50472"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47e31b86edff36f2d26cbc88ce695d98ff804178"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c20311d76cbaeb7ed2ecf9c8b8322f8fc4a7ae3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cea70a572c0cb9728d728cfebe7d5bd485e97513"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa8a2f3be78e4585996bcf4c15e4504441a4c7a0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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