CVE-2022-49072

gpio: Restrict usage of GPIO chip irq members before initialization

State: Published
Severity: Not scored
Published: Feb 26, 2025
Updated: May 23, 2026
Reserved: Feb 26, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

gpio: Restrict usage of GPIO chip irq members before initialization

GPIO chip irq members are exposed before they could be completely initialized and this leads to race conditions.

One such issue was observed for the gc->irq.domain variable which was accessed through the I2C interface in gpiochip_to_irq() before it could be initialized by gpiochip_add_irqchip(). This resulted in Kernel NULL pointer dereference.

Following are the logs for reference :-

kernel: Call Trace: kernel: gpiod_to_irq+0x53/0x70 kernel: acpi_dev_gpio_irq_get_by+0x113/0x1f0 kernel: i2c_acpi_get_irq+0xc0/0xd0 kernel: i2c_device_probe+0x28a/0x2a0 kernel: really_probe+0xf2/0x460 kernel: RIP: 0010:gpiochip_to_irq+0x47/0xc0

To avoid such scenarios, restrict usage of GPIO chip irq members before they are completely initialized.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before 7e88a50704b0c49ad3f2d11e8b963341cf68a89fAffected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before 0912cf021fb5749372b3782611d8b1de4986c13aAffected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before 2c1fa3614795e2b24da1ba95de0b27b8f6ea4537Affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before f8dea54f74cae8c2e4d7b2952e8fed7743a85c87Affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before 5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320Affected 44dfa46aaf7cf594ac89bc1a0c0e56c498b31269Affected 5.2.14 to before 5.3Affected
LinuxLinux	5.3Affected before 5.3Not affected 5.10.111 through 5.10.Not affected 5.15.34 through 5.15.Not affected 5.16.20 through 5.16.Not affected 5.17.3 through 5.17.Not affected 5.18 and laterNot affected

Product

Versions

LinuxLinux

48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before 7e88a50704b0c49ad3f2d11e8b963341cf68a89fAffected
48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before 0912cf021fb5749372b3782611d8b1de4986c13aAffected
48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before 2c1fa3614795e2b24da1ba95de0b27b8f6ea4537Affected
48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before f8dea54f74cae8c2e4d7b2952e8fed7743a85c87Affected
48057ed1840fde9239b1e000bea1a0a1f07c5e99 to before 5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320Affected
44dfa46aaf7cf594ac89bc1a0c0e56c498b31269Affected
5.2.14 to before 5.3Affected

LinuxLinux

5.3Affected
before 5.3Not affected
5.10.111 through 5.10.*Not affected
5.15.34 through 5.15.*Not affected
5.16.20 through 5.16.*Not affected
5.17.3 through 5.17.*Not affected
5.18 and laterNot affected

References

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