CVE-2026-43427
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
usb: class: cdc-wdm: fix reordering issue in read code path
In the Linux kernel, the following vulnerability has been resolved: usb: class: cdc-wdm: fix reordering issue in read code path Quoting the bug report: Due to compiler optimization or CPU out-of-order execution, the desc->length update can be reordered before the memmove. If this happens, wdm_read() can see the new length and call copy_to_user() on uninitialized memory. This also violates LKMM data race rules [1]. Fix it by using WRITE_ONCE and memory barriers.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| afba937e540c902c989cd516fd97ea0c8499bb27 | affected | git | 638328ca9c17ae6511ad62198c57bae32ffa3c91 | Unavailable | None listed |
| afba937e540c902c989cd516fd97ea0c8499bb27 | affected | git | 170e8daca24da6edb4be82ab01abf44e87af387b | Unavailable | None listed |
| afba937e540c902c989cd516fd97ea0c8499bb27 | affected | git | c8fa96ed021923dae147bcd9f9205b8df7b82360 | Unavailable | None listed |
| afba937e540c902c989cd516fd97ea0c8499bb27 | affected | git | 4ee3062bf2c9a722afef429826e8607eaf3fc6a0 | Unavailable | None listed |
| afba937e540c902c989cd516fd97ea0c8499bb27 | affected | git | 276aef0fd2b92f41b920ac891c72cadeee957934 | Unavailable | None listed |
| afba937e540c902c989cd516fd97ea0c8499bb27 | affected | git | 67ed312124bb1b61858778ac0b985b48961c862a | Unavailable | None listed |
| afba937e540c902c989cd516fd97ea0c8499bb27 | affected | git | e3c874b05901dc519054b5107d16620e6d2b5fea | Unavailable | None listed |
| afba937e540c902c989cd516fd97ea0c8499bb27 | affected | git | 8df672bfe3ec2268c2636584202755898e547173 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.26 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.26 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.167 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.19 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.9 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |