cve-2024-35986
Vulnerability from cvelistv5
Published
2024-05-20 09:47
Modified
2024-11-05 09:26
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
phy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/25b3498485ac281e5851700e33b97f12c9533fd8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73224a5d2180066c7fe05b4656647601ba08d588
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9827caa5105fb16d1fae2e75c8d0e4662014b3ca
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf6e4ee5c43690e4c5a8a057bbcd4ff986bed052
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/25b3498485ac281e5851700e33b97f12c9533fd8
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/73224a5d2180066c7fe05b4656647601ba08d588
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9827caa5105fb16d1fae2e75c8d0e4662014b3ca
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bf6e4ee5c43690e4c5a8a057bbcd4ff986bed052
Impacted products
Vendor Product Version
Linux Linux Version: 5.18
Show details on NVD website

To clipboard 

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              "userInteraction": "NONE",
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          "product": "Linux",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nphy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered\n\nThe power_supply frame-work is not really designed for there to be\nlong living in kernel references to power_supply devices.\n\nSpecifically unregistering a power_supply while some other code has\na reference to it triggers a WARN in power_supply_unregister():\n\n\tWARN_ON(atomic_dec_return(\u0026psy-\u003euse_cnt));\n\nFolllowed by the power_supply still getting removed and the\nbacking data freed anyway, leaving the tusb1210 charger-detect code\nwith a dangling reference, resulting in a crash the next time\ntusb1210_get_online() is called.\n\nFix this by only holding the reference in tusb1210_get_online()\nfreeing it at the end of the function. Note this still leaves\na theoretical race window, but it avoids the issue when manually\nrmmod-ing the charger chip driver during development."
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    "dateReserved": "2024-05-17T13:50:33.145Z",
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  }
}


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