CVE - CVE-2024-38633

CVE-ID
CVE-2024-38633	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: serial: max3100: Update uart_driver_registered on driver removal The removal of the last MAX3100 device triggers the removal of the driver. However, code doesn't update the respective global variable and after insmod — rmmod — insmod cycle the kernel oopses: max3100 spi-PRP0001:01: max3100_probe: adding port 0 BUG: kernel NULL pointer dereference, address: 0000000000000408 ... RIP: 0010:serial_core_register_port+0xa0/0x840 ... max3100_probe+0x1b6/0x280 [max3100] spi_probe+0x8d/0xb0 Update the actual state so next time UART driver will be registered again. Hugo also noticed, that the error path in the probe also affected by having the variable set, and not cleared. Instead of clearing it move the assignment after the successfull uart_register_driver() call.
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/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8b URL:https://git.kernel.org/stable/c/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8b MISC:https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752 URL:https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752 MISC:https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ec URL:https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ec MISC:https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003 URL:https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003 MISC:https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00 URL:https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00 MISC:https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762 URL:https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762 MISC:https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72 URL:https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72 MISC:https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0 URL:https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0
Assigning CNA
kernel.org
Date Record Created
20240618	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 (20240618)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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