ghsa-2x6c-642q-vfcc
Vulnerability from github
Published
2024-06-20 12:31
Modified
2024-06-20 12:31
Details

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

scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()

The bnx2fc_destroy() functions are removing the interface before calling destroy_work. This results multiple WARNings from sysfs_remove_group() as the controller rport device attributes are removed too early.

Replace the fcoe_port's destroy_work queue. It's not needed.

The problem is easily reproducible with the following steps.

Example:

$ dmesg -w & $ systemctl enable --now fcoe $ fipvlan -s -c ens2f1 $ fcoeadm -d ens2f1.802 [ 583.464488] host2: libfc: Link down on port (7500a1) [ 583.472651] bnx2fc: 7500a1 - rport not created Yet!! [ 583.490468] ------------[ cut here ]------------ [ 583.538725] sysfs group 'power' not found for kobject 'rport-2:0-0' [ 583.568814] WARNING: CPU: 3 PID: 192 at fs/sysfs/group.c:279 sysfs_remove_group+0x6f/0x80 [ 583.607130] Modules linked in: dm_service_time 8021q garp mrp stp llc bnx2fc cnic uio rpcsec_gss_krb5 auth_rpcgss nfsv4 ... [ 583.942994] CPU: 3 PID: 192 Comm: kworker/3:2 Kdump: loaded Not tainted 5.14.0-39.el9.x86_64 #1 [ 583.984105] Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013 [ 584.016535] Workqueue: fc_wq_2 fc_rport_final_delete [scsi_transport_fc] [ 584.050691] RIP: 0010:sysfs_remove_group+0x6f/0x80 [ 584.074725] Code: ff 5b 48 89 ef 5d 41 5c e9 ee c0 ff ff 48 89 ef e8 f6 b8 ff ff eb d1 49 8b 14 24 48 8b 33 48 c7 c7 ... [ 584.162586] RSP: 0018:ffffb567c15afdc0 EFLAGS: 00010282 [ 584.188225] RAX: 0000000000000000 RBX: ffffffff8eec4220 RCX: 0000000000000000 [ 584.221053] RDX: ffff8c1586ce84c0 RSI: ffff8c1586cd7cc0 RDI: ffff8c1586cd7cc0 [ 584.255089] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffb567c15afc00 [ 584.287954] R10: ffffb567c15afbf8 R11: ffffffff8fbe7f28 R12: ffff8c1486326400 [ 584.322356] R13: ffff8c1486326480 R14: ffff8c1483a4a000 R15: 0000000000000004 [ 584.355379] FS: 0000000000000000(0000) GS:ffff8c1586cc0000(0000) knlGS:0000000000000000 [ 584.394419] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 584.421123] CR2: 00007fe95a6f7840 CR3: 0000000107674002 CR4: 00000000000606e0 [ 584.454888] Call Trace: [ 584.466108] device_del+0xb2/0x3e0 [ 584.481701] device_unregister+0x13/0x60 [ 584.501306] bsg_unregister_queue+0x5b/0x80 [ 584.522029] bsg_remove_queue+0x1c/0x40 [ 584.541884] fc_rport_final_delete+0xf3/0x1d0 [scsi_transport_fc] [ 584.573823] process_one_work+0x1e3/0x3b0 [ 584.592396] worker_thread+0x50/0x3b0 [ 584.609256] ? rescuer_thread+0x370/0x370 [ 584.628877] kthread+0x149/0x170 [ 584.643673] ? set_kthread_struct+0x40/0x40 [ 584.662909] ret_from_fork+0x22/0x30 [ 584.680002] ---[ end trace 53575ecefa942ece ]---

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48758"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-20T12:15:13Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()\n\nThe bnx2fc_destroy() functions are removing the interface before calling\ndestroy_work. This results multiple WARNings from sysfs_remove_group() as\nthe controller rport device attributes are removed too early.\n\nReplace the fcoe_port\u0027s destroy_work queue. It\u0027s not needed.\n\nThe problem is easily reproducible with the following steps.\n\nExample:\n\n  $ dmesg -w \u0026\n  $ systemctl enable --now fcoe\n  $ fipvlan -s -c ens2f1\n  $ fcoeadm -d ens2f1.802\n  [  583.464488] host2: libfc: Link down on port (7500a1)\n  [  583.472651] bnx2fc: 7500a1 - rport not created Yet!!\n  [  583.490468] ------------[ cut here ]------------\n  [  583.538725] sysfs group \u0027power\u0027 not found for kobject \u0027rport-2:0-0\u0027\n  [  583.568814] WARNING: CPU: 3 PID: 192 at fs/sysfs/group.c:279 sysfs_remove_group+0x6f/0x80\n  [  583.607130] Modules linked in: dm_service_time 8021q garp mrp stp llc bnx2fc cnic uio rpcsec_gss_krb5 auth_rpcgss nfsv4 ...\n  [  583.942994] CPU: 3 PID: 192 Comm: kworker/3:2 Kdump: loaded Not tainted 5.14.0-39.el9.x86_64 #1\n  [  583.984105] Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013\n  [  584.016535] Workqueue: fc_wq_2 fc_rport_final_delete [scsi_transport_fc]\n  [  584.050691] RIP: 0010:sysfs_remove_group+0x6f/0x80\n  [  584.074725] Code: ff 5b 48 89 ef 5d 41 5c e9 ee c0 ff ff 48 89 ef e8 f6 b8 ff ff eb d1 49 8b 14 24 48 8b 33 48 c7 c7 ...\n  [  584.162586] RSP: 0018:ffffb567c15afdc0 EFLAGS: 00010282\n  [  584.188225] RAX: 0000000000000000 RBX: ffffffff8eec4220 RCX: 0000000000000000\n  [  584.221053] RDX: ffff8c1586ce84c0 RSI: ffff8c1586cd7cc0 RDI: ffff8c1586cd7cc0\n  [  584.255089] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffb567c15afc00\n  [  584.287954] R10: ffffb567c15afbf8 R11: ffffffff8fbe7f28 R12: ffff8c1486326400\n  [  584.322356] R13: ffff8c1486326480 R14: ffff8c1483a4a000 R15: 0000000000000004\n  [  584.355379] FS:  0000000000000000(0000) GS:ffff8c1586cc0000(0000) knlGS:0000000000000000\n  [  584.394419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  [  584.421123] CR2: 00007fe95a6f7840 CR3: 0000000107674002 CR4: 00000000000606e0\n  [  584.454888] Call Trace:\n  [  584.466108]  device_del+0xb2/0x3e0\n  [  584.481701]  device_unregister+0x13/0x60\n  [  584.501306]  bsg_unregister_queue+0x5b/0x80\n  [  584.522029]  bsg_remove_queue+0x1c/0x40\n  [  584.541884]  fc_rport_final_delete+0xf3/0x1d0 [scsi_transport_fc]\n  [  584.573823]  process_one_work+0x1e3/0x3b0\n  [  584.592396]  worker_thread+0x50/0x3b0\n  [  584.609256]  ? rescuer_thread+0x370/0x370\n  [  584.628877]  kthread+0x149/0x170\n  [  584.643673]  ? set_kthread_struct+0x40/0x40\n  [  584.662909]  ret_from_fork+0x22/0x30\n  [  584.680002] ---[ end trace 53575ecefa942ece ]---",
  "id": "GHSA-2x6c-642q-vfcc",
  "modified": "2024-06-20T12:31:22Z",
  "published": "2024-06-20T12:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48758"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00849de10f798a9538242824a51b1756e7110754"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/262550f29c750f7876b6ed1244281e72b64ebffb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a12fe8248a38437b95b942bbe85aced72e6e2eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/847f9ea4c5186fdb7b84297e3eeed9e340e83fce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ace7b6ef41251c5fe47f629a9a922382fb7b0a6b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b11e34f7bab21df36f02a5e54fb69e858c09a65d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf2bd892a0cb14dd2d21f2c658f4b747813be311"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c93a290c862ccfa404e42d7420565730d67cbff9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de6336b17a1376db1c0f7a528cce8783db0881c0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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