CVE-2023-53322
BaseFortify
Publication date: 2025-09-16
Last updated on: 2025-12-10
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | to 4.14.322 (exc) |
| linux | linux_kernel | From 4.15 (inc) to 4.19.291 (exc) |
| linux | linux_kernel | From 4.20 (inc) to 5.4.251 (exc) |
| linux | linux_kernel | From 5.5 (inc) to 5.10.188 (exc) |
| linux | linux_kernel | From 5.11 (inc) to 5.15.121 (exc) |
| linux | linux_kernel | From 5.16 (inc) to 6.1.40 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.4.5 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in the Linux kernel's qla2xxx SCSI driver involves a use-after-free condition. The function terminate_rport_io can exit before ensuring all IO operations have returned, which can cause system crashes. Specifically, for FCP-2 devices, IOs may hang in hardware because the driver does not immediately tear down the session in firmware when a cable is pulled. When a timeout occurs, terminate_rport_io is called and attempts to free resources, but the cleanup may not complete quickly enough, leaving the driver holding references to freed resources. The fix involves waiting for all IOs to return before freeing resources.
How can this vulnerability impact me? :
This vulnerability can cause system crashes due to use-after-free errors in the Linux kernel's SCSI driver. This can lead to instability, potential data loss, or denial of service on affected systems using the qla2xxx driver with FCP-2 devices, especially when hardware events like cable pulls occur.