CVE-2024-44936: power: supply: rt5033: Bring back i2c_set_clientdata
In the Linux kernel, the following vulnerability has been resolved:
power: supply: rt5033: Bring back i2c_set_clientdata
Commit 3a93da231c12 ("power: supply: rt5033: Use devm_power_supply_register() helper")
reworked the driver to use devm. While at it, the i2c_set_clientdata
was dropped along with the remove callback. Unfortunately other parts
of the driver also rely on i2c clientdata so this causes kernel oops.
Bring the call back to fix the driver.
Security readout for executives and security teams
Plain-English summary
This Linux kernel issue can crash affected systems that use the rt5033 power-supply driver. A driver cleanup removed data setup that other driver code still expected, causing a kernel oops. The source does not provide CVSS, a CWE, or evidence of exploitation.
Executive priority
Treat as targeted reliability risk, not a broad emergency, based on current evidence. Patch affected Linux systems through standard kernel maintenance, with higher priority for devices using the rt5033 driver.
Technical view
The rt5033 power-supply driver was converted to devm_power_supply_register(), and i2c_set_clientdata was unintentionally removed with the remove callback. Other driver paths still depended on I2C client data, causing a kernel oops. The fix restores i2c_set_clientdata.
Likely exposure
Exposure appears limited to Linux kernels containing the affected rt5033 driver change and systems where that driver is used. The source lists Linux kernel 6.9, 6.10.5, and 6.11 as affected, plus commit 3a93da231c12.
Exploitation context
No active exploitation is supported by the provided sources. The CVE is not listed as KEV, and the bundle provides no public exploit status. Impact is described as a kernel oops, not data theft or remote code execution.
Researcher notes
Evidence is narrow: the CVE describes a regression-level kernel oops fixed by restoring client data setup. No CVSS, CWE, exploit details, or broad impact analysis are provided in the source bundle.
Mitigation direction
Apply a Linux stable or distribution kernel containing the referenced fix commits.
Check vendor kernel guidance for exact fixed package versions.
Prioritize devices that use or load the rt5033 power-supply driver.
Include this in normal kernel update cycles if rt5033 is not present.
Validation and detection
Inventory running Linux kernel versions against the affected versions in the CVE record.
Check whether the rt5033 power-supply driver is built or loaded.
Confirm vendor changelogs include the i2c_set_clientdata restoration fix.
Monitor affected devices for kernel oops reports involving rt5033.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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CVE-2024-44936 mapping review
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