CVE-2024-50059 (GCVE-0-2024-50059)

Vulnerability from cvelistv5 – Published: 2024-10-21 19:39 – Updated: 2026-01-05 10:54
VLAI?
Title
ntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 , < 5126d8f5567f49b52e21fca320eaa97977055099 (git)
Affected: d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 , < b650189687822b705711f0567a65a164a314d8df (git)
Affected: d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 , < 92728fceefdaa2a0a3aae675f86193b006eeaa43 (git)
Affected: d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 , < 3ae45be8492460a35b5aebf6acac1f1d32708946 (git)
Affected: d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 , < fa840ba4bd9f3bad7f104e5b32028ee73af8b3dd (git)
Affected: d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 , < 177925d9c8715a897bb79eca62628862213ba956 (git)
Affected: d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9 , < e51aded92d42784313ba16c12f4f88cc4f973bbb (git)
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    Linux Linux Affected: 4.16
Unaffected: 0 , < 4.16 (semver)
Unaffected: 5.4.285 , ≤ 5.4.* (semver)
Unaffected: 5.10.227 , ≤ 5.10.* (semver)
Unaffected: 5.15.168 , ≤ 5.15.* (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.57 , ≤ 6.6.* (semver)
Unaffected: 6.11.4 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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