ghsa-pf8w-93qv-jm8p
Vulnerability from github
Published
2025-09-11 18:35
Modified
2025-09-11 18:35
Details

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

bnxt_en: Fix lockdep warning during rmmod

The commit under the Fixes tag added a netdev_assert_locked() in bnxt_free_ntp_fltrs(). The lock should be held during normal run-time but the assert will be triggered (see below) during bnxt_remove_one() which should not need the lock. The netdev is already unregistered by then. Fix it by calling netdev_assert_locked_or_invisible() which will not assert if the netdev is unregistered.

WARNING: CPU: 5 PID: 2241 at ./include/net/netdev_lock.h:17 bnxt_free_ntp_fltrs+0xf8/0x100 [bnxt_en] Modules linked in: rpcrdma rdma_cm iw_cm ib_cm configfs ib_core bnxt_en(-) bridge stp llc x86_pkg_temp_thermal xfs tg3 [last unloaded: bnxt_re] CPU: 5 UID: 0 PID: 2241 Comm: rmmod Tainted: G S W 6.16.0 #2 PREEMPT(voluntary) Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017 RIP: 0010:bnxt_free_ntp_fltrs+0xf8/0x100 [bnxt_en] Code: 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 8b 47 60 be ff ff ff ff 48 8d b8 28 0c 00 00 e8 d0 cf 41 c3 85 c0 0f 85 2e ff ff ff <0f> 0b e9 27 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffa92082387da0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff9e5b593d8000 RCX: 0000000000000001 RDX: 0000000000000001 RSI: ffffffff83dc9a70 RDI: ffffffff83e1a1cf RBP: ffff9e5b593d8c80 R08: 0000000000000000 R09: ffffffff8373a2b3 R10: 000000008100009f R11: 0000000000000001 R12: 0000000000000001 R13: ffffffffc01c4478 R14: dead000000000122 R15: dead000000000100 FS: 00007f3a8a52c740(0000) GS:ffff9e631ad1c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bb289419c8 CR3: 000000011274e001 CR4: 00000000003706f0 Call Trace: bnxt_remove_one+0x57/0x180 [bnxt_en] pci_device_remove+0x39/0xc0 device_release_driver_internal+0xa5/0x130 driver_detach+0x42/0x90 bus_remove_driver+0x61/0xc0 pci_unregister_driver+0x38/0x90 bnxt_exit+0xc/0x7d0 [bnxt_en]

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{
  "affected": [],
  "aliases": [
    "CVE-2025-39769"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-11T17:15:42Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix lockdep warning during rmmod\n\nThe commit under the Fixes tag added a netdev_assert_locked() in\nbnxt_free_ntp_fltrs().  The lock should be held during normal run-time\nbut the assert will be triggered (see below) during bnxt_remove_one()\nwhich should not need the lock.  The netdev is already unregistered by\nthen.  Fix it by calling netdev_assert_locked_or_invisible() which will\nnot assert if the netdev is unregistered.\n\nWARNING: CPU: 5 PID: 2241 at ./include/net/netdev_lock.h:17 bnxt_free_ntp_fltrs+0xf8/0x100 [bnxt_en]\nModules linked in: rpcrdma rdma_cm iw_cm ib_cm configfs ib_core bnxt_en(-) bridge stp llc x86_pkg_temp_thermal xfs tg3 [last unloaded: bnxt_re]\nCPU: 5 UID: 0 PID: 2241 Comm: rmmod Tainted: G S      W           6.16.0 #2 PREEMPT(voluntary)\nTainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN\nHardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017\nRIP: 0010:bnxt_free_ntp_fltrs+0xf8/0x100 [bnxt_en]\nCode: 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 8b 47 60 be ff ff ff ff 48 8d b8 28 0c 00 00 e8 d0 cf 41 c3 85 c0 0f 85 2e ff ff ff \u003c0f\u003e 0b e9 27 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90\nRSP: 0018:ffffa92082387da0 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff9e5b593d8000 RCX: 0000000000000001\nRDX: 0000000000000001 RSI: ffffffff83dc9a70 RDI: ffffffff83e1a1cf\nRBP: ffff9e5b593d8c80 R08: 0000000000000000 R09: ffffffff8373a2b3\nR10: 000000008100009f R11: 0000000000000001 R12: 0000000000000001\nR13: ffffffffc01c4478 R14: dead000000000122 R15: dead000000000100\nFS:  00007f3a8a52c740(0000) GS:ffff9e631ad1c000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000055bb289419c8 CR3: 000000011274e001 CR4: 00000000003706f0\nCall Trace:\n \u003cTASK\u003e\n bnxt_remove_one+0x57/0x180 [bnxt_en]\n pci_device_remove+0x39/0xc0\n device_release_driver_internal+0xa5/0x130\n driver_detach+0x42/0x90\n bus_remove_driver+0x61/0xc0\n pci_unregister_driver+0x38/0x90\n bnxt_exit+0xc/0x7d0 [bnxt_en]",
  "id": "GHSA-pf8w-93qv-jm8p",
  "modified": "2025-09-11T18:35:52Z",
  "published": "2025-09-11T18:35:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39769"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4611d88a37cfc18cbabc6978aaf7325d1ae3f53a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5885d39dce879fbbc953f40e19adb60c29802302"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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