CVE-2024-38633
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.
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 16th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8bPatch
- https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752Patch
- https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ecPatch
- https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003Patch
- https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00Patch
- https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762Patch
- https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72Patch
- https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0Patch
- https://git.kernel.org/stable/c/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8bPatch
- https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752Patch
- https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ecPatch
- https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003Patch
- https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00Patch
- https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762Patch
- https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72Patch
- https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.