CVE-2024-35986 (GCVE-0-2024-35986)
Vulnerability from cvelistv5
Published
2024-05-20 09:47
Modified
2026-08-05 11:31
Severity ?
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: phy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered The power_supply frame-work is not really designed for there to be long living in kernel references to power_supply devices. Specifically unregistering a power_supply while some other code has a reference to it triggers a WARN in power_supply_unregister(): WARN_ON(atomic_dec_return(&psy->use_cnt)); Folllowed by the power_supply still getting removed and the backing data freed anyway, leaving the tusb1210 charger-detect code with a dangling reference, resulting in a crash the next time tusb1210_get_online() is called. Fix this by only holding the reference in tusb1210_get_online() freeing it at the end of the function. Note this still leaves a theoretical race window, but it avoids the issue when manually rmmod-ing the charger chip driver during development.
References
Impacted products
Vendor Product Version
Linux Linux Version: 48969a5623ed918713552e2b4f9d391c89b5e838
Version: 48969a5623ed918713552e2b4f9d391c89b5e838
Version: 48969a5623ed918713552e2b4f9d391c89b5e838
Version: 48969a5623ed918713552e2b4f9d391c89b5e838
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