ghsa-2q63-477w-qcv2
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Release the label when replacing existing ct entry
Cited commit doesn't release the label mapping when replacing existing ct entry which leads to following memleak report:
unreferenced object 0xffff8881854cf280 (size 96): comm "kworker/u48:74", pid 23093, jiffies 4296664564 (age 175.944s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000002722d368>] __kmalloc+0x4b/0x1c0 [<00000000cc44e18f>] mapping_add+0x6e8/0xc90 [mlx5_core] [<000000003ad942a7>] mlx5_get_label_mapping+0x66/0xe0 [mlx5_core] [<00000000266308ac>] mlx5_tc_ct_entry_create_mod_hdr+0x1c4/0xf50 [mlx5_core] [<000000009a768b4f>] mlx5_tc_ct_entry_add_rule+0x16f/0xaf0 [mlx5_core] [<00000000a178f3e5>] mlx5_tc_ct_block_flow_offload_add+0x10cb/0x1f90 [mlx5_core] [<000000007b46c496>] mlx5_tc_ct_block_flow_offload+0x14a/0x630 [mlx5_core] [<00000000a9a18ac5>] nf_flow_offload_tuple+0x1a3/0x390 [nf_flow_table] [<00000000d0881951>] flow_offload_work_handler+0x257/0xd30 [nf_flow_table] [<000000009e4935a4>] process_one_work+0x7c2/0x13e0 [<00000000f5cd36a7>] worker_thread+0x59d/0xec0 [<00000000baed1daf>] kthread+0x28f/0x330 [<0000000063d282a4>] ret_from_fork+0x1f/0x30
Fix the issue by correctly releasing the label mapping.
{
"affected": [],
"aliases": [
"CVE-2023-53720"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-22T14:15:46Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Release the label when replacing existing ct entry\n\nCited commit doesn\u0027t release the label mapping when replacing existing ct\nentry which leads to following memleak report:\n\nunreferenced object 0xffff8881854cf280 (size 96):\n comm \"kworker/u48:74\", pid 23093, jiffies 4296664564 (age 175.944s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [\u003c000000002722d368\u003e] __kmalloc+0x4b/0x1c0\n [\u003c00000000cc44e18f\u003e] mapping_add+0x6e8/0xc90 [mlx5_core]\n [\u003c000000003ad942a7\u003e] mlx5_get_label_mapping+0x66/0xe0 [mlx5_core]\n [\u003c00000000266308ac\u003e] mlx5_tc_ct_entry_create_mod_hdr+0x1c4/0xf50 [mlx5_core]\n [\u003c000000009a768b4f\u003e] mlx5_tc_ct_entry_add_rule+0x16f/0xaf0 [mlx5_core]\n [\u003c00000000a178f3e5\u003e] mlx5_tc_ct_block_flow_offload_add+0x10cb/0x1f90 [mlx5_core]\n [\u003c000000007b46c496\u003e] mlx5_tc_ct_block_flow_offload+0x14a/0x630 [mlx5_core]\n [\u003c00000000a9a18ac5\u003e] nf_flow_offload_tuple+0x1a3/0x390 [nf_flow_table]\n [\u003c00000000d0881951\u003e] flow_offload_work_handler+0x257/0xd30 [nf_flow_table]\n [\u003c000000009e4935a4\u003e] process_one_work+0x7c2/0x13e0\n [\u003c00000000f5cd36a7\u003e] worker_thread+0x59d/0xec0\n [\u003c00000000baed1daf\u003e] kthread+0x28f/0x330\n [\u003c0000000063d282a4\u003e] ret_from_fork+0x1f/0x30\n\nFix the issue by correctly releasing the label mapping.",
"id": "GHSA-2q63-477w-qcv2",
"modified": "2025-10-22T15:31:11Z",
"published": "2025-10-22T15:31:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53720"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3db903a71f1f4bbf30baae166a4a49f2e8aceb61"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8ac04a28144cfa89b61be518268233742c23d88d"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
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