CVE-2024-38555 (GCVE-0-2024-38555)

Vulnerability from cvelistv5 – Published: 2024-06-19 13:35 – Updated: 2026-08-05 11:32
VLAI
Title
net/mlx5: Discard command completions in internal error
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Discard command completions in internal error Fix use after free when FW completion arrives while device is in internal error state. Avoid calling completion handler in this case, since the device will flush the command interface and trigger all completions manually. Kernel log: ------------[ cut here ]------------ refcount_t: underflow; use-after-free. ... RIP: 0010:refcount_warn_saturate+0xd8/0xe0 ... Call Trace: <IRQ> ? __warn+0x79/0x120 ? refcount_warn_saturate+0xd8/0xe0 ? report_bug+0x17c/0x190 ? handle_bug+0x3c/0x60 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 ? refcount_warn_saturate+0xd8/0xe0 cmd_ent_put+0x13b/0x160 [mlx5_core] mlx5_cmd_comp_handler+0x5f9/0x670 [mlx5_core] cmd_comp_notifier+0x1f/0x30 [mlx5_core] notifier_call_chain+0x35/0xb0 atomic_notifier_call_chain+0x16/0x20 mlx5_eq_async_int+0xf6/0x290 [mlx5_core] notifier_call_chain+0x35/0xb0 atomic_notifier_call_chain+0x16/0x20 irq_int_handler+0x19/0x30 [mlx5_core] __handle_irq_event_percpu+0x4b/0x160 handle_irq_event+0x2e/0x80 handle_edge_irq+0x98/0x230 __common_interrupt+0x3b/0xa0 common_interrupt+0x7b/0xa0 </IRQ> <TASK> asm_common_interrupt+0x22/0x40
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:14 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7018 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 27c79b3a9212cf4ba634c157e07d29548181a208 , < f6fbb8535e990f844371086ab2c1221f71f993d3 (git)
Affected: 51d138c2610a236c1ed0059d034ee4c74f452b86 , < 3cb92b0ad73d3f1734e812054e698d655e9581b0 (git)
Affected: 51d138c2610a236c1ed0059d034ee4c74f452b86 , < bf8aaf0ae01c27ae3c06aa8610caf91e50393396 (git)
Affected: 51d138c2610a236c1ed0059d034ee4c74f452b86 , < 1337ec94bc5a9eed250e33f5f5c89a28a6bfabdb (git)
Affected: 51d138c2610a236c1ed0059d034ee4c74f452b86 , < 1d5dce5e92a70274de67a59e1e674c3267f94cd7 (git)
Affected: 51d138c2610a236c1ed0059d034ee4c74f452b86 , < 7ac4c69c34240c6de820492c0a28a0bd1494265a (git)
Affected: 51d138c2610a236c1ed0059d034ee4c74f452b86 , < db9b31aa9bc56ff0d15b78f7e827d61c4a096e40 (git)
Affected: 2e5d24b3bf091802c5456dc8f8f6a6be4493c8ca (git)
Affected: 5.10.20 , < 5.10.219 (semver)
Affected: 5.11.3 , < 5.12 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.10.219 , ≤ 5.10.* (semver)
Unaffected: 5.15.161 , ≤ 5.15.* (semver)
Unaffected: 6.1.93 , ≤ 6.1.* (semver)
Unaffected: 6.6.33 , ≤ 6.6.* (semver)
Unaffected: 6.8.12 , ≤ 6.8.* (semver)
Unaffected: 6.9.3 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Discard command completions in internal error\n\nFix use after free when FW completion arrives while device is in\ninternal error state. Avoid calling completion handler in this case,\nsince the device will flush the command interface and trigger all\ncompletions manually.\n\nKernel log:\n------------[ cut here ]------------\nrefcount_t: underflow; use-after-free.\n...\nRIP: 0010:refcount_warn_saturate+0xd8/0xe0\n...\nCall Trace:\n\u003cIRQ\u003e\n? __warn+0x79/0x120\n? refcount_warn_saturate+0xd8/0xe0\n? report_bug+0x17c/0x190\n? handle_bug+0x3c/0x60\n? exc_invalid_op+0x14/0x70\n? asm_exc_invalid_op+0x16/0x20\n? refcount_warn_saturate+0xd8/0xe0\ncmd_ent_put+0x13b/0x160 [mlx5_core]\nmlx5_cmd_comp_handler+0x5f9/0x670 [mlx5_core]\ncmd_comp_notifier+0x1f/0x30 [mlx5_core]\nnotifier_call_chain+0x35/0xb0\natomic_notifier_call_chain+0x16/0x20\nmlx5_eq_async_int+0xf6/0x290 [mlx5_core]\nnotifier_call_chain+0x35/0xb0\natomic_notifier_call_chain+0x16/0x20\nirq_int_handler+0x19/0x30 [mlx5_core]\n__handle_irq_event_percpu+0x4b/0x160\nhandle_irq_event+0x2e/0x80\nhandle_edge_irq+0x98/0x230\n__common_interrupt+0x3b/0xa0\ncommon_interrupt+0x7b/0xa0\n\u003c/IRQ\u003e\n\u003cTASK\u003e\nasm_common_interrupt+0x22/0x40"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-23T15:48:40.659Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/f6fbb8535e990f844371086ab2c1221f71f993d3"
            },
            {
              "url": "https://git.kernel.org/stable/c/3cb92b0ad73d3f1734e812054e698d655e9581b0"
            },
            {
              "url": "https://git.kernel.org/stable/c/bf8aaf0ae01c27ae3c06aa8610caf91e50393396"
            },
            {
              "url": "https://git.kernel.org/stable/c/1337ec94bc5a9eed250e33f5f5c89a28a6bfabdb"
            },
            {
              "url": "https://git.kernel.org/stable/c/1d5dce5e92a70274de67a59e1e674c3267f94cd7"
            },
            {
              "url": "https://git.kernel.org/stable/c/7ac4c69c34240c6de820492c0a28a0bd1494265a"
            },
            {
              "url": "https://git.kernel.org/stable/c/db9b31aa9bc56ff0d15b78f7e827d61c4a096e40"
            }
          ],
          "title": "net/mlx5: Discard command completions in internal error",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-38555",
        "datePublished": "2024-06-19T13:35:26.059Z",
        "dateReserved": "2024-06-18T19:36:34.920Z",
        "dateUpdated": "2026-05-23T15:48:40.659Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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