CVE-2024-27412
Description
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.
How to fix
- linux linux_kernel4.15, 4.19.309, 5.4.271, 5.10.212, 5.15.151, 6.1.81, 6.4, 6.6.21, 6.7.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.14.316 ≤ v < 4.15, 4.19.284 ≤ v < 4.19.309, 5.4.244 ≤ v < 5.4.271, 5.10.181 ≤ v < 5.10.212, 5.15.114 ≤ v < 5.15.151, 6.1.31 ≤ v < 6.1.81, 6.3.5 ≤ v < 6.4, 6.4.1 ≤ v < 6.6.21, 6.7 ≤ v < 6.7.9, 6.4, 6.8 | 4.15, 4.19.309, 5.4.271, 5.10.212, 5.15.151, 6.1.81, 6.4, 6.6.21, 6.7.9 |
| debian debian_linux | 10.0 | — |
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