CVE-2023-52837
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
nbd: fix uaf in nbd_open
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.
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) |
|---|---|---|---|---|---|
| 4af5f2e0301311f88c420fcfc5f3c8611ade20ac | affected | git | 4e9b3ec84dc97909876641dad14e0a2300d6c2a3 | Unavailable | None listed |
| 4af5f2e0301311f88c420fcfc5f3c8611ade20ac | affected | git | 879947f4180bc6e83af64eb0515e0cf57fce15db | Unavailable | None listed |
| 4af5f2e0301311f88c420fcfc5f3c8611ade20ac | affected | git | 56bd7901b5e9dbc9112036ea615ebcba1565fafe | Unavailable | None listed |
| 4af5f2e0301311f88c420fcfc5f3c8611ade20ac | affected | git | 327462725b0f759f093788dfbcb2f1fd132f956b | 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) |
|---|---|---|---|---|---|
| 5.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.14 | Unavailable | None listed |
| 6.1.63 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.5.12 | unaffected | semver | Unavailable | 6.5.* | None listed |
| 6.6.2 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.7 | unaffected | original_commit_for_fix | Unavailable | * | None listed |