staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser
Summary
| CVE | CVE-2025-68256 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-12-16 15:15:54 UTC |
| Updated | 2026-04-18 09:16:12 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser The Information Element (IE) parser rtw_get_ie() trusted the length byte of each IE without validating that the IE body (len bytes after the 2-byte header) fits inside the remaining frame buffer. A malformed frame can advertise an IE length larger than the available data, causing the parser to increment its pointer beyond the buffer end. This results in out-of-bounds reads or, depending on the pattern, an infinite loop. Fix by validating that (offset + 2 + len) does not exceed the limit before accepting the IE or advancing to the next element. This prevents OOB reads and ensures the parser terminates safely on malformed frames. |
Risk And Classification
EPSS: 0.000680000 probability, percentile 0.210040000 (date 2026-04-21)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b 9829c6e1b2e4180fd18315252ad6faeab6128076 git | Not specified |
| CNA | Linux | Linux | affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b b977eb31802817f4a37da95bf16bfdaa1eeb5fc2 git | Not specified |
| CNA | Linux | Linux | affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b 30c558447e90935f0de61be181bbcedf75952e00 git | Not specified |
| CNA | Linux | Linux | affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b a54e2b2db1b7de2e008b4f62eec35aaefcc663c5 git | Not specified |
| CNA | Linux | Linux | affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b df191dd9f4c7249d98ada55634fa8ac19089b8cb git | Not specified |
| CNA | Linux | Linux | affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b c0d93d69e1472ba75b78898979b90a98ba2a2501 git | Not specified |
| CNA | Linux | Linux | affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b 154828bf9559b9c8421fc2f0d7f7f76b3683aaed git | Not specified |
| CNA | Linux | Linux | affected 4.12 | Not specified |
| CNA | Linux | Linux | unaffected 4.12 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.203 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.160 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.120 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.62 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.17.12 6.17.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.1 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.19 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/c0d93d69e1472ba75b78898979b90a98ba2a2501 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/a54e2b2db1b7de2e008b4f62eec35aaefcc663c5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/9829c6e1b2e4180fd18315252ad6faeab6128076 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/df191dd9f4c7249d98ada55634fa8ac19089b8cb | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/30c558447e90935f0de61be181bbcedf75952e00 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b977eb31802817f4a37da95bf16bfdaa1eeb5fc2 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/154828bf9559b9c8421fc2f0d7f7f76b3683aaed | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.