linux: In the Linux kernel, the following vulnerability has been resolved: net: usb: fix possible use-after-free in smsc75x...
CVE-2021-47239 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47239, released May 21, 2024. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.10.46-1 | DEBIAN-CVE-2021-47239 | May 21, 2024 |
| linux · Debian 13.5 (trixie) | 5.10.46-1 | DEBIAN-CVE-2021-47239 | May 21, 2024 |
| linux · Debian 14 | 5.10.46-1 | DEBIAN-CVE-2021-47239 | May 21, 2024 |
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