CVE-2023-53307
Description
In the Linux kernel, the following vulnerability has been resolved: rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails If getting an ID or setting up a work queue in rbd_dev_create() fails, use-after-free on rbd_dev->rbd_client, rbd_dev->spec and rbd_dev->opts is triggered in do_rbd_add(). The root cause is that the ownership of these structures is transfered to rbd_dev prematurely and they all end up getting freed when rbd_dev_create() calls rbd_dev_free() prior to returning to do_rbd_add(). Found by Linux Verification Center (linuxtesting.org) with SVACE, an incomplete patch submitted by Natalia Petrova <[email protected]>.
How to fix
- linux linux_kernel4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.9 ≤ v < 4.14.308, 4.15 ≤ v < 4.19.276, 4.20 ≤ v < 5.4.235, 5.5 ≤ v < 5.10.173, 5.11 ≤ v < 5.15.99, 5.16 ≤ v < 6.1.16, 6.2 ≤ v < 6.2.3 | 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3 |
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