Products
Linux kernel
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Tags
CVE-2023-52837 details
Published : May 21, 2024, 4:15 p.m.
Last Modified : May 21, 2024, 4:53 p.m.
Last Modified : May 21, 2024, 4:53 p.m.
Description
In the Linux kernel, the following vulnerability has been resolved: nbd: fix uaf in nbd_open Commit 4af5f2e03013 ("nbd: use blk_mq_alloc_disk and blk_cleanup_disk") cleans up disk by blk_cleanup_disk() and it won't set disk->private_data as NULL as before. UAF may be triggered in nbd_open() if someone tries to open nbd device right after nbd_put() since nbd has been free in nbd_dev_remove(). Fix this by implementing ->free_disk and free private data in it.
CVSS Score
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
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Weakness
| Weakness | Name | Description |
|---|
References
| URL | Source |
|---|---|
| https://git.kernel.org/stable/c/327462725b0f759f093788dfbcb2f1fd132f956b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
| https://git.kernel.org/stable/c/4e9b3ec84dc97909876641dad14e0a2300d6c2a3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
| https://git.kernel.org/stable/c/56bd7901b5e9dbc9112036ea615ebcba1565fafe | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
| https://git.kernel.org/stable/c/879947f4180bc6e83af64eb0515e0cf57fce15db | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
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