CVE-2024-35986 (GCVE-0-2024-35986)

Vulnerability from cvelistv5 – Published: 2024-05-20 09:47 – Updated: 2025-05-04 09:09
VLAI?
Title
phy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 48969a5623ed918713552e2b4f9d391c89b5e838 , < 25b3498485ac281e5851700e33b97f12c9533fd8 (git)
Affected: 48969a5623ed918713552e2b4f9d391c89b5e838 , < 73224a5d2180066c7fe05b4656647601ba08d588 (git)
Affected: 48969a5623ed918713552e2b4f9d391c89b5e838 , < 9827caa5105fb16d1fae2e75c8d0e4662014b3ca (git)
Affected: 48969a5623ed918713552e2b4f9d391c89b5e838 , < bf6e4ee5c43690e4c5a8a057bbcd4ff986bed052 (git)
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    Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.1.90 , ≤ 6.1.* (semver)
Unaffected: 6.6.30 , ≤ 6.6.* (semver)
Unaffected: 6.8.9 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.