CVE - CVE-2022-49072

CVE-ID
CVE-2022-49072	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/0912cf021fb5749372b3782611d8b1de4986c13a URL:https://git.kernel.org/stable/c/0912cf021fb5749372b3782611d8b1de4986c13a MISC:https://git.kernel.org/stable/c/2c1fa3614795e2b24da1ba95de0b27b8f6ea4537 URL:https://git.kernel.org/stable/c/2c1fa3614795e2b24da1ba95de0b27b8f6ea4537 MISC:https://git.kernel.org/stable/c/5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320 URL:https://git.kernel.org/stable/c/5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320 MISC:https://git.kernel.org/stable/c/7e88a50704b0c49ad3f2d11e8b963341cf68a89f URL:https://git.kernel.org/stable/c/7e88a50704b0c49ad3f2d11e8b963341cf68a89f MISC:https://git.kernel.org/stable/c/f8dea54f74cae8c2e4d7b2952e8fed7743a85c87 URL:https://git.kernel.org/stable/c/f8dea54f74cae8c2e4d7b2952e8fed7743a85c87
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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