CVE-2026-93811
Last modified
CVE-2026-93811 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix acl.sd_buf memory leak and invalid sd_size error handling 1. When ndr_decode_v4_ntacl() fails, the code jumped to free_n_data which only freed n.data, skipping kfree(acl.sd_buf) and leaking the buffer.
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix acl.sd_buf memory leak and invalid sd_size error handling 1. When ndr_decode_v4_ntacl() fails, the code jumped to free_n_data which only freed n.data, skipping kfree(acl.sd_buf) and leaking the buffer. Zero-initialize struct xattr_ntacl acl, reorder error labels to out_free to release acl.sd_buf on all error paths. 2. if (acl.sd_size < sizeof(struct smb_ntsd)) is true, original code returned success without freeing sd_buf and left stale *pntsd. Set rc = -EINVAL before jumping to out_free to return error code and free buffer.
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 8f0541186e9ad1b62accc9519cc2b7a7240272a7, < c3836f55e0dab96314774215e12d87f63fa919f2; >= 8f0541186e9ad1b62accc9519cc2b7a7240272a7, < 6e6329322ad733c5b23555c609353841560b26bc; >= 8f0541186e9ad1b62accc9519cc2b7a7240272a7, < d708a36634bb7b6f94d0e76d587d2ec50b2b93b5; cb69d4d6f709f87c94afa28ae64c501576692171; 6e8f4abf584253cbaa596ea4ad13110cf61cd4c9; 8e33102309bd6839b2e2e158f93a7b378cb4655d; >= 5.15.62, < 5.16; >= 5.18.18, < 5.19; >= 5.19.2, < 5.20 |
| Linux | Linux | 6.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-93811?
How severe is CVE-2026-93811?
How do I fix CVE-2026-93811?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-93806In the Linux kernel, the following vulnerability has been re…8.8
- CVE-2026-93807In the Linux kernel, the following vulnerability has been re…
- CVE-2026-93808In the Linux kernel, the following vulnerability has been re…
- CVE-2026-93809In the Linux kernel, the following vulnerability has been re…
- CVE-2026-9381A vulnerability was detected in Edimax BR-6675nD 1.12. Affec…8.8
- CVE-2026-93810In the Linux kernel, the following vulnerability has been re…7
- CVE-2026-93812In the Linux kernel, the following vulnerability has been re…
- CVE-2026-93813In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-93814In the Linux kernel, the following vulnerability has been re…
- CVE-2026-93815In the Linux kernel, the following vulnerability has been re…
- CVE-2026-93816In the Linux kernel, the following vulnerability has been re…7.1
- CVE-2026-93817In the Linux kernel, the following vulnerability has been re…7.8
Are you affected by CVE-2026-93811?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST