CVE-2023-53720
- Source
- https://cve.org/CVERecord?id=CVE-2023-53720
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53720.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-53720
- Downstream
- Published
- 2025-10-22T13:23:52.123Z
- Modified
- 2026-04-02T09:45:01.596809Z
- Summary
- net/mlx5e: Release the label when replacing existing ct entry
- Details
-
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>] mappingadd+0x6e8/0xc90 [mlx5core] [<000000003ad942a7>] mlx5getlabelmapping+0x66/0xe0 [mlx5core] [<00000000266308ac>] mlx5tcctentrycreatemodhdr+0x1c4/0xf50 [mlx5core] [<000000009a768b4f>] mlx5tcctentryaddrule+0x16f/0xaf0 [mlx5core] [<00000000a178f3e5>] mlx5tcctblockflowoffloadadd+0x10cb/0x1f90 [mlx5core] [<000000007b46c496>] mlx5tcctblockflowoffload+0x14a/0x630 [mlx5core] [<00000000a9a18ac5>] nfflowoffloadtuple+0x1a3/0x390 [nfflowtable] [<00000000d0881951>] flowoffloadworkhandler+0x257/0xd30 [nfflowtable] [<000000009e4935a4>] processonework+0x7c2/0x13e0 [<00000000f5cd36a7>] workerthread+0x59d/0xec0 [<00000000baed1daf>] kthread+0x28f/0x330 [<0000000063d282a4>] retfromfork+0x1f/0x30
Fix the issue by correctly releasing the label mapping.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53720.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/3db903a71f1f4bbf30baae166a4a49f2e8aceb61
- https://git.kernel.org/stable/c/8ac04a28144cfa89b61be518268233742c23d88d
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53720.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-53720
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git