CVE-2024-27412: power: supply: bq27xxx-i2c: Do not free non existing IRQ
First published: Fri May 17 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
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Reference Links
- https://git.kernel.org/stable/c/083686474e7c97b0f8b66df37fcb64e432e8b771
- https://git.kernel.org/stable/c/2df70149e73e79783bcbc7db4fa51ecef0e2022c
- https://git.kernel.org/stable/c/7394abc8926adee6a817bab10797e0adc898af77
- https://git.kernel.org/stable/c/cefe18e9ec84f8fe3e198ccebb815cc996eb9797
- https://git.kernel.org/stable/c/d4d813c0a14d6bf52d810a55db06a2e7e3d98eaa
- https://git.kernel.org/stable/c/d7acc4a569f5f4513120c85ea2b9f04909b7490f
- https://git.kernel.org/stable/c/e601ae81910ce6a3797876e190a2d8ef6cf828bc
- https://git.kernel.org/stable/c/fbca8bae1ba79d443a58781b45e92a73a24ac8f8
- https://launchpad.net/bugs/cve/CVE-2024-27412
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27412
- https://nvd.nist.gov/vuln/detail/CVE-2024-27412
- https://security-tracker.debian.org/tracker/CVE-2024-27412
- https://ubuntu.com/security/CVE-2024-27412
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://git.kernel.org/linus/2df70149e73e79783bcbc7db4fa51ecef0e2022c
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