ghsa-fxwf-88xm-53qq
Vulnerability from github
Published
2025-06-18 12:30
Modified
2025-06-18 12:30
Details

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

ice: xsk: prohibit usage of non-balanced queue id

Fix the following scenario: 1. ethtool -L $IFACE rx 8 tx 96 2. xdpsock -q 10 -t -z

Above refers to a case where user would like to attach XSK socket in txonly mode at a queue id that does not have a corresponding Rx queue. At this moment ice's XSK logic is tightly bound to act on a "queue pair", e.g. both Tx and Rx queues at a given queue id are disabled/enabled and both of them will get XSK pool assigned, which is broken for the presented queue configuration. This results in the splat included at the bottom, which is basically an OOB access to Rx ring array.

To fix this, allow using the ids only in scope of "combined" queues reported by ethtool. However, logic should be rewritten to allow such configurations later on, which would end up as a complete rewrite of the control path, so let us go with this temporary fix.

[420160.558008] BUG: kernel NULL pointer dereference, address: 0000000000000082 [420160.566359] #PF: supervisor read access in kernel mode [420160.572657] #PF: error_code(0x0000) - not-present page [420160.579002] PGD 0 P4D 0 [420160.582756] Oops: 0000 [#1] PREEMPT SMP NOPTI [420160.588396] CPU: 10 PID: 21232 Comm: xdpsock Tainted: G OE 5.19.0-rc7+ #10 [420160.597893] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019 [420160.609894] RIP: 0010:ice_xsk_pool_setup+0x44/0x7d0 [ice] [420160.616968] Code: f3 48 83 ec 40 48 8b 4f 20 48 8b 3f 65 48 8b 04 25 28 00 00 00 48 89 44 24 38 31 c0 48 8d 04 ed 00 00 00 00 48 01 c1 48 8b 11 <0f> b7 92 82 00 00 00 48 85 d2 0f 84 2d 75 00 00 48 8d 72 ff 48 85 [420160.639421] RSP: 0018:ffffc9002d2afd48 EFLAGS: 00010282 [420160.646650] RAX: 0000000000000050 RBX: ffff88811d8bdd00 RCX: ffff888112c14ff8 [420160.655893] RDX: 0000000000000000 RSI: ffff88811d8bdd00 RDI: ffff888109861000 [420160.665166] RBP: 000000000000000a R08: 000000000000000a R09: 0000000000000000 [420160.674493] R10: 000000000000889f R11: 0000000000000000 R12: 000000000000000a [420160.683833] R13: 000000000000000a R14: 0000000000000000 R15: ffff888117611828 [420160.693211] FS: 00007fa869fc1f80(0000) GS:ffff8897e0880000(0000) knlGS:0000000000000000 [420160.703645] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [420160.711783] CR2: 0000000000000082 CR3: 00000001d076c001 CR4: 00000000007706e0 [420160.721399] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [420160.731045] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [420160.740707] PKRU: 55555554 [420160.745960] Call Trace: [420160.750962] [420160.755597] ? kmalloc_large_node+0x79/0x90 [420160.762703] ? __kmalloc_node+0x3f5/0x4b0 [420160.769341] xp_assign_dev+0xfd/0x210 [420160.775661] ? shmem_file_read_iter+0x29a/0x420 [420160.782896] xsk_bind+0x152/0x490 [420160.788943] __sys_bind+0xd0/0x100 [420160.795097] ? exit_to_user_mode_prepare+0x20/0x120 [420160.802801] __x64_sys_bind+0x16/0x20 [420160.809298] do_syscall_64+0x38/0x90 [420160.815741] entry_SYSCALL_64_after_hwframe+0x63/0xcd [420160.823731] RIP: 0033:0x7fa86a0dd2fb [420160.830264] Code: c3 66 0f 1f 44 00 00 48 8b 15 69 8b 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 0f 1f 44 00 00 f3 0f 1e fa b8 31 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d 8b 0c 00 f7 d8 64 89 01 48 [420160.855410] RSP: 002b:00007ffc1146f618 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [420160.866366] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa86a0dd2fb [420160.876957] RDX: 0000000000000010 RSI: 00007ffc1146f680 RDI: 0000000000000003 [420160.887604] RBP: 000055d7113a0520 R08: 00007fa868fb8000 R09: 0000000080000000 [420160.898293] R10: 0000000000008001 R11: 0000000000000246 R12: 000055d7113a04e0 [420160.909038] R13: 000055d7113a0320 R14: 000000000000000a R15: 0000000000000000 [420160.919817] [420160.925659] Modules linked in: ice(OE) af_packet binfmt_misc ---truncated---

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-50003"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:28Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: xsk: prohibit usage of non-balanced queue id\n\nFix the following scenario:\n1. ethtool -L $IFACE rx 8 tx 96\n2. xdpsock -q 10 -t -z\n\nAbove refers to a case where user would like to attach XSK socket in\ntxonly mode at a queue id that does not have a corresponding Rx queue.\nAt this moment ice\u0027s XSK logic is tightly bound to act on a \"queue pair\",\ne.g. both Tx and Rx queues at a given queue id are disabled/enabled and\nboth of them will get XSK pool assigned, which is broken for the presented\nqueue configuration. This results in the splat included at the bottom,\nwhich is basically an OOB access to Rx ring array.\n\nTo fix this, allow using the ids only in scope of \"combined\" queues\nreported by ethtool. However, logic should be rewritten to allow such\nconfigurations later on, which would end up as a complete rewrite of the\ncontrol path, so let us go with this temporary fix.\n\n[420160.558008] BUG: kernel NULL pointer dereference, address: 0000000000000082\n[420160.566359] #PF: supervisor read access in kernel mode\n[420160.572657] #PF: error_code(0x0000) - not-present page\n[420160.579002] PGD 0 P4D 0\n[420160.582756] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[420160.588396] CPU: 10 PID: 21232 Comm: xdpsock Tainted: G           OE     5.19.0-rc7+ #10\n[420160.597893] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019\n[420160.609894] RIP: 0010:ice_xsk_pool_setup+0x44/0x7d0 [ice]\n[420160.616968] Code: f3 48 83 ec 40 48 8b 4f 20 48 8b 3f 65 48 8b 04 25 28 00 00 00 48 89 44 24 38 31 c0 48 8d 04 ed 00 00 00 00 48 01 c1 48 8b 11 \u003c0f\u003e b7 92 82 00 00 00 48 85 d2 0f 84 2d 75 00 00 48 8d 72 ff 48 85\n[420160.639421] RSP: 0018:ffffc9002d2afd48 EFLAGS: 00010282\n[420160.646650] RAX: 0000000000000050 RBX: ffff88811d8bdd00 RCX: ffff888112c14ff8\n[420160.655893] RDX: 0000000000000000 RSI: ffff88811d8bdd00 RDI: ffff888109861000\n[420160.665166] RBP: 000000000000000a R08: 000000000000000a R09: 0000000000000000\n[420160.674493] R10: 000000000000889f R11: 0000000000000000 R12: 000000000000000a\n[420160.683833] R13: 000000000000000a R14: 0000000000000000 R15: ffff888117611828\n[420160.693211] FS:  00007fa869fc1f80(0000) GS:ffff8897e0880000(0000) knlGS:0000000000000000\n[420160.703645] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[420160.711783] CR2: 0000000000000082 CR3: 00000001d076c001 CR4: 00000000007706e0\n[420160.721399] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[420160.731045] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[420160.740707] PKRU: 55555554\n[420160.745960] Call Trace:\n[420160.750962]  \u003cTASK\u003e\n[420160.755597]  ? kmalloc_large_node+0x79/0x90\n[420160.762703]  ? __kmalloc_node+0x3f5/0x4b0\n[420160.769341]  xp_assign_dev+0xfd/0x210\n[420160.775661]  ? shmem_file_read_iter+0x29a/0x420\n[420160.782896]  xsk_bind+0x152/0x490\n[420160.788943]  __sys_bind+0xd0/0x100\n[420160.795097]  ? exit_to_user_mode_prepare+0x20/0x120\n[420160.802801]  __x64_sys_bind+0x16/0x20\n[420160.809298]  do_syscall_64+0x38/0x90\n[420160.815741]  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[420160.823731] RIP: 0033:0x7fa86a0dd2fb\n[420160.830264] Code: c3 66 0f 1f 44 00 00 48 8b 15 69 8b 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 0f 1f 44 00 00 f3 0f 1e fa b8 31 00 00 00 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d 8b 0c 00 f7 d8 64 89 01 48\n[420160.855410] RSP: 002b:00007ffc1146f618 EFLAGS: 00000246 ORIG_RAX: 0000000000000031\n[420160.866366] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa86a0dd2fb\n[420160.876957] RDX: 0000000000000010 RSI: 00007ffc1146f680 RDI: 0000000000000003\n[420160.887604] RBP: 000055d7113a0520 R08: 00007fa868fb8000 R09: 0000000080000000\n[420160.898293] R10: 0000000000008001 R11: 0000000000000246 R12: 000055d7113a04e0\n[420160.909038] R13: 000055d7113a0320 R14: 000000000000000a R15: 0000000000000000\n[420160.919817]  \u003c/TASK\u003e\n[420160.925659] Modules linked in: ice(OE) af_packet binfmt_misc\n---truncated---",
  "id": "GHSA-fxwf-88xm-53qq",
  "modified": "2025-06-18T12:30:41Z",
  "published": "2025-06-18T12:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50003"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03a3f29fe5b1751ad9b5c892c894183e75a6e4c4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1bfdcde723d8ceb2d73291b0415767e7c1cc1d8a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a42f112d367bb4700a8a41f5c12724fde6bfbb9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe76b3e674665ea4059337f8f66d20cdfb0168eb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.