Answer in brief
CVE-2024-50059 records a High severity (CVSS 7.8) vulnerability in ntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 <5126d8f5567f49b52e21fca320eaa97977055099 || >=d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 <b650189687822b705711f0567a65a164a314d8df || >=d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 <92728fceefdaa2a0a3aae675f86193b006eeaa43 || >=d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 <3ae45be8492460a35b5aebf6acac1f1d32708946 || >=d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 <fa840ba4bd9f3bad7f104e5b32028ee73af8b3dd || >=d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 <177925d9c8715a897bb79eca62628862213ba956 || >=d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 <e51aded92d42784313ba16c12f4f88cc4f973bbb | 5126d8f5567f49b52e21fca320eaa97977055099, b650189687822b705711f0567a65a164a314d8df, 92728fceefdaa2a0a3aae675f86193b006eeaa43, 3ae45be8492460a35b5aebf6acac1f1d32708946, fa840ba4bd9f3bad7f104e5b32028ee73af8b3dd, 177925d9c8715a897bb79eca62628862213ba956, e51aded92d42784313ba16c12f4f88cc4f973bbb |
| Linux/Linuxgeneric | 4.16 | Not reported |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition In the switchtec_ntb_add function, it can call switchtec_ntb_init_sndev function, then &sndev->check_link_status_work is bound with check_link_status_work. switchtec_ntb_link_notification may be called to start the work. If we remove the module which will call switchtec_ntb_remove to make cleanup, it will free sndev through kfree(sndev), while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | check_link_status_work switchtec_ntb_remove | kfree(sndev); | | if (sndev->link_force_down) | // use sndev Fix it by ensuring that the work is canceled before proceeding with the cleanup in switchtec_ntb_remove.
Quoted source text, attributed separately from HOL analysis.