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CVE-2023-53310

power: supply: axp288_fuel_gauge: Fix external_power_changed race

Medium4.7EPSS 0.11%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: power: supply: axp288_fuel_gauge: Fix external_power_changed race fuel_gauge_external_power_changed() dereferences info->bat, which gets sets in axp288_fuel_gauge_probe() like this: info->bat = devm_power_supply_register(dev, &fuel_gauge_desc, &psy_cfg); As soon as devm_power_supply_register() has called device_add() the external_power_changed callback can get called. So there is a window where fuel_gauge_external_power_changed() may get called while info->bat has not been set yet leading to a NULL pointer dereference. Fixing this is easy. The external_power_changed callback gets passed the power_supply which will eventually get stored in info->bat, so fuel_gauge_external_power_changed() can simply directly use the passed in psy argument which is always valid.

Timeline

  1. ID reserved

    By Linux

  2. Published

  3. · 8 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-53310, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Medium4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1Medium4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.11% · top 99% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.

Weakness

Affected products

  • Linux · Linux

    • affected 30abb3d07929137bf72327560e1595508a692c4e – < 0456b912121e45b3ef54abe3135e5dcb541f956c
    • affected 30abb3d07929137bf72327560e1595508a692c4e – < a636c6ba9ce898207f283271cb28511206ab739b
    • affected 30abb3d07929137bf72327560e1595508a692c4e – < f8319774d6f1567d6e7d03653174ab0c82c5c66d

  • Linux · Linux

    • affected 5.18
    • unaffected < 5.18
    • unaffected 6.1.31 – ≤ 6.1.*
    • unaffected 6.3.5 – ≤ 6.3.*
    • unaffected 6.4 – ≤ *

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .