GHSA-4HH4-86PX-498M
Vulnerability from github – Published: 2026-09-25 15:31 – Updated: 2026-09-25 15:31In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init()
padapter->HalData is allocated via vzalloc(), but incorrectly freed using kfree() in the rtw_sdio_if1_init() error path. Using kfree() to release this vmalloc-backed buffer can lead to memory corruption.
Use rtw_hal_data_deinit() to pair the free correctly and free HalData with vfree().
The bug was first flagged by an experimental static analysis tool we are developing for kernel memory-management bugs. Manual inspection confirms that the issue is still present in current mainline.
An x86_64 allyesconfig build showed no new warnings. As we do not have suitable RTL8723BS SDIO hardware to test with, no runtime testing was able to be performed.
{
"affected": [],
"aliases": [
"CVE-2026-98160"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-25T14:17:27Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix mismatched free of HalData in rtw_sdio_if1_init()\n\npadapter-\u003eHalData is allocated via vzalloc(), but incorrectly freed\nusing kfree() in the rtw_sdio_if1_init() error path. Using kfree() to\nrelease this vmalloc-backed buffer can lead to memory corruption.\n\nUse rtw_hal_data_deinit() to pair the free correctly and free\nHalData with vfree().\n\nThe bug was first flagged by an experimental static analysis tool we\nare developing for kernel memory-management bugs. Manual inspection\nconfirms that the issue is still present in current mainline.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have\nsuitable RTL8723BS SDIO hardware to test with, no runtime testing was\nable to be performed.",
"id": "GHSA-4hh4-86px-498m",
"modified": "2026-09-25T15:31:49Z",
"published": "2026-09-25T15:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98160"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/264676418b726baca7be49171e306b6aa05cceb0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/423574feaed192063ef0cd0813fb85425f39e539"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4520d673d49dabfd42c008a33889251025f7d6d5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6c017ab2b0e1b60b5be94636c94720347213d78b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/737c928ff5092d7e55128a232c231248fc993777"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/911190f0b9511c3c81f2f2484414c1ae26f636b3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d6158333d630a1b21d8914feaf77a6f5deb185d9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ff6d1ba247b5c62bdb678f1069abc86ad88a1402"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.