NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-rt-64k (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-CENTOS9-KERNELRT64K-10171313
- published15 May 2025
- disclosed26 Feb 2025
Introduced: 26 Feb 2025
CVE-2022-49072 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-64k package and not the kernel-rt-64k package as distributed by Centos.
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
- https://access.redhat.com/security/cve/CVE-2022-49072
- https://git.kernel.org/stable/c/0912cf021fb5749372b3782611d8b1de4986c13a
- https://git.kernel.org/stable/c/2c1fa3614795e2b24da1ba95de0b27b8f6ea4537
- https://git.kernel.org/stable/c/5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320
- https://git.kernel.org/stable/c/7e88a50704b0c49ad3f2d11e8b963341cf68a89f
- https://git.kernel.org/stable/c/f8dea54f74cae8c2e4d7b2952e8fed7743a85c87