CVE-2021-47239
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: usb: fix possible use-after-free in smsc75xx_bind
In the Linux kernel, the following vulnerability has been resolved: net: usb: fix possible use-after-free in smsc75xx_bind The commit 46a8b29c6306 ("net: usb: fix memory leak in smsc75xx_bind") fails to clean up the work scheduled in smsc75xx_reset-> smsc75xx_set_multicast, which leads to use-after-free if the work is scheduled to start after the deallocation. In addition, this patch also removes a dangling pointer - dev->data[0]. This patch calls cancel_work_sync to cancel the scheduled work and set the dangling pointer to NULL.
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) |
|---|---|---|---|---|---|
| 200dbfcad8011e50c3cec269ed7b980836eeb1fa | affected | git | 7cc8b2e05fcea6edd022d26e82091d781af8fd9b | Unavailable | None listed |
| 22c840596af0c09068b6cf948616e6496e59e07f | affected | git | 64160d1741a3de5204d1a822e058e0b4cc526504 | Unavailable | None listed |
| 9e6b8c1ff9d997e1fa16cbd2d60739adf6dc1bbc | affected | git | c4e3be2e7742863e454ce31faf8fd0109c00050b | Unavailable | None listed |
| 9e6a3eccb28779710cbbafc4f4258d92509c6d07 | affected | git | 2fc8300c9cfa5167fcb5b1a2a07db6f53e82f59b | Unavailable | None listed |
| b95fb96e6339e34694dd578fb6bde3575b01af17 | affected | git | 4252bf6c2b245f47011098113d405ffad6ad5d5b | Unavailable | None listed |
| 635ac38b36255d3cfb8312cf7c471334f4d537e0 | affected | git | 570a52cf3e01d19f7fd1a251dfc52b0cd86c13cb | Unavailable | None listed |
| 70c886ac93f87ae7214a0c69151a28a8075dd95b | affected | git | 14616c372a7be01a2fb8c56c9d8debd232b9e43d | Unavailable | None listed |
| 46a8b29c6306d8bbfd92b614ef65a47c900d8e70 | affected | git | 56b786d86694e079d8aad9b314e015cd4ac02a3d | Unavailable | None listed |
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) |
|---|---|---|---|---|---|
| 4.4.271 | affected | semver | 4.4.274 | Unavailable | None listed |
| 4.9.271 | affected | semver | 4.9.274 | Unavailable | None listed |
| 4.14.235 | affected | semver | 4.14.238 | Unavailable | None listed |
| 4.19.193 | affected | semver | 4.19.196 | Unavailable | None listed |
| 5.4.124 | affected | semver | 5.4.128 | Unavailable | None listed |
| 5.10.42 | affected | semver | 5.10.46 | Unavailable | None listed |
| 5.12.9 | affected | semver | 5.12.13 | Unavailable | None listed |