ghsa-9jxv-7cgw-j3gc
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:

octeontx2-pf: mcs: Fix NULL pointer dereferences

When system is rebooted after creating macsec interface below NULL pointer dereference crashes occurred. This patch fixes those crashes by using correct order of teardown

[ 3324.406942] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 3324.415726] Mem abort info: [ 3324.418510] ESR = 0x96000006 [ 3324.421557] EC = 0x25: DABT (current EL), IL = 32 bits [ 3324.426865] SET = 0, FnV = 0 [ 3324.429913] EA = 0, S1PTW = 0 [ 3324.433047] Data abort info: [ 3324.435921] ISV = 0, ISS = 0x00000006 [ 3324.439748] CM = 0, WnR = 0 .... [ 3324.575915] Call trace: [ 3324.578353] cn10k_mdo_del_secy+0x24/0x180 [ 3324.582440] macsec_common_dellink+0xec/0x120 [ 3324.586788] macsec_notify+0x17c/0x1c0 [ 3324.590529] raw_notifier_call_chain+0x50/0x70 [ 3324.594965] call_netdevice_notifiers_info+0x34/0x7c [ 3324.599921] rollback_registered_many+0x354/0x5bc [ 3324.604616] unregister_netdevice_queue+0x88/0x10c [ 3324.609399] unregister_netdev+0x20/0x30 [ 3324.613313] otx2_remove+0x8c/0x310 [ 3324.616794] pci_device_shutdown+0x30/0x70 [ 3324.620882] device_shutdown+0x11c/0x204

[ 966.664930] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 966.673712] Mem abort info: [ 966.676497] ESR = 0x96000006 [ 966.679543] EC = 0x25: DABT (current EL), IL = 32 bits [ 966.684848] SET = 0, FnV = 0 [ 966.687895] EA = 0, S1PTW = 0 [ 966.691028] Data abort info: [ 966.693900] ISV = 0, ISS = 0x00000006 [ 966.697729] CM = 0, WnR = 0 [ 966.833467] Call trace: [ 966.835904] cn10k_mdo_stop+0x20/0xa0 [ 966.839557] macsec_dev_stop+0xe8/0x11c [ 966.843384] __dev_close_many+0xbc/0x140 [ 966.847298] dev_close_many+0x84/0x120 [ 966.851039] rollback_registered_many+0x114/0x5bc [ 966.855735] unregister_netdevice_many.part.0+0x14/0xa0 [ 966.860952] unregister_netdevice_many+0x18/0x24 [ 966.865560] macsec_notify+0x1ac/0x1c0 [ 966.869303] raw_notifier_call_chain+0x50/0x70 [ 966.873738] call_netdevice_notifiers_info+0x34/0x7c [ 966.878694] rollback_registered_many+0x354/0x5bc [ 966.883390] unregister_netdevice_queue+0x88/0x10c [ 966.888173] unregister_netdev+0x20/0x30 [ 966.892090] otx2_remove+0x8c/0x310 [ 966.895571] pci_device_shutdown+0x30/0x70 [ 966.899660] device_shutdown+0x11c/0x204 [ 966.903574] __do_sys_reboot+0x208/0x290 [ 966.907487] __arm64_sys_reboot+0x20/0x30 [ 966.911489] el0_svc_handler+0x80/0x1c0 [ 966.915316] el0_svc+0x8/0x180 [ 966.918362] Code: f9400000 f9400a64 91220014 f94b3403 (f9400060) [ 966.924448] ---[ end trace 341778e799c3d8d7 ]---

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53595"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-04T16:15:56Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: mcs: Fix NULL pointer dereferences\n\nWhen system is rebooted after creating macsec interface\nbelow NULL pointer dereference crashes occurred. This\npatch fixes those crashes by using correct order of teardown\n\n[ 3324.406942] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[ 3324.415726] Mem abort info:\n[ 3324.418510]   ESR = 0x96000006\n[ 3324.421557]   EC = 0x25: DABT (current EL), IL = 32 bits\n[ 3324.426865]   SET = 0, FnV = 0\n[ 3324.429913]   EA = 0, S1PTW = 0\n[ 3324.433047] Data abort info:\n[ 3324.435921]   ISV = 0, ISS = 0x00000006\n[ 3324.439748]   CM = 0, WnR = 0\n....\n[ 3324.575915] Call trace:\n[ 3324.578353]  cn10k_mdo_del_secy+0x24/0x180\n[ 3324.582440]  macsec_common_dellink+0xec/0x120\n[ 3324.586788]  macsec_notify+0x17c/0x1c0\n[ 3324.590529]  raw_notifier_call_chain+0x50/0x70\n[ 3324.594965]  call_netdevice_notifiers_info+0x34/0x7c\n[ 3324.599921]  rollback_registered_many+0x354/0x5bc\n[ 3324.604616]  unregister_netdevice_queue+0x88/0x10c\n[ 3324.609399]  unregister_netdev+0x20/0x30\n[ 3324.613313]  otx2_remove+0x8c/0x310\n[ 3324.616794]  pci_device_shutdown+0x30/0x70\n[ 3324.620882]  device_shutdown+0x11c/0x204\n\n[  966.664930] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[  966.673712] Mem abort info:\n[  966.676497]   ESR = 0x96000006\n[  966.679543]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  966.684848]   SET = 0, FnV = 0\n[  966.687895]   EA = 0, S1PTW = 0\n[  966.691028] Data abort info:\n[  966.693900]   ISV = 0, ISS = 0x00000006\n[  966.697729]   CM = 0, WnR = 0\n[  966.833467] Call trace:\n[  966.835904]  cn10k_mdo_stop+0x20/0xa0\n[  966.839557]  macsec_dev_stop+0xe8/0x11c\n[  966.843384]  __dev_close_many+0xbc/0x140\n[  966.847298]  dev_close_many+0x84/0x120\n[  966.851039]  rollback_registered_many+0x114/0x5bc\n[  966.855735]  unregister_netdevice_many.part.0+0x14/0xa0\n[  966.860952]  unregister_netdevice_many+0x18/0x24\n[  966.865560]  macsec_notify+0x1ac/0x1c0\n[  966.869303]  raw_notifier_call_chain+0x50/0x70\n[  966.873738]  call_netdevice_notifiers_info+0x34/0x7c\n[  966.878694]  rollback_registered_many+0x354/0x5bc\n[  966.883390]  unregister_netdevice_queue+0x88/0x10c\n[  966.888173]  unregister_netdev+0x20/0x30\n[  966.892090]  otx2_remove+0x8c/0x310\n[  966.895571]  pci_device_shutdown+0x30/0x70\n[  966.899660]  device_shutdown+0x11c/0x204\n[  966.903574]  __do_sys_reboot+0x208/0x290\n[  966.907487]  __arm64_sys_reboot+0x20/0x30\n[  966.911489]  el0_svc_handler+0x80/0x1c0\n[  966.915316]  el0_svc+0x8/0x180\n[  966.918362] Code: f9400000 f9400a64 91220014 f94b3403 (f9400060)\n[  966.924448] ---[ end trace 341778e799c3d8d7 ]---",
  "id": "GHSA-9jxv-7cgw-j3gc",
  "modified": "2025-10-04T18:31:16Z",
  "published": "2025-10-04T18:31:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53595"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1152c0f947b76e7731e039185cbd00fdb4389f00"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13ff119b17e5e2916435ce01a0156c8698ad9e16"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/699af748c61574125d269db260dabbe20436d74e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3dcc45eca017fca82ac47dbde6f41af960657e5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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