CVE-2024-27412: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: power: supply: bq27xxx-i2c: Do not free non existing IRQ The bq27xxx i2c-client may not have an IRQ, in which case client->irq will be 0. bq27xxx_battery_i2c_probe() already has an if (client->irq) check wrapping the request_threaded_irq(). But bq27xxx_battery_i2c_remove() unconditionally calls free_irq(client->irq) leading to: [ 190.310742] ------------[ cut here ]------------ [ 190.310843] Trying to free already-free IRQ 0 [ 190.310861] WARNING: CPU: 2 PID: 1304 at kernel/irq/manage.c:1893 free_irq+0x1b8/0x310 Followed by a backtrace when unbinding the driver. Add an if (client->irq) to bq27xxx_battery_i2c_remove() mirroring probe() to fix this.

Affected products

• Debian Debian Linux: version 10.0 only
• Linux Linux Kernel: from 4.14.316, before 4.15 (fixed in 4.15); from 4.19.284, before 4.19.309 (fixed in 4.19.309); from 5.4.244, before 5.4.271 (fixed in 5.4.271); from 5.10.181, before 5.10.212 (fixed in 5.10.212); from 5.15.114, before 5.15.151 (fixed in 5.15.151); from 6.1.31, before 6.1.81 (fixed in 6.1.81); …

Published 2024-05-17. Last modified 2026-06-17.