In the Linux kernel, the following vulnerability has been resolved:
serial: sc16is7xx: convert from _raw_ to _noinc_ regmap functions for FIFO
The SC16IS7XX IC supports a burst mode to access the FIFOs where the
initial register address is sent ($00), followed by all the FIFO data
without having to resend the register address each time. In this mode, the
IC doesn't increment the register address for each R/W byte.
The regmap_raw_read() and regmap_raw_write() are functions which can
perform IO over multiple registers. They are currently used to read/write
from/to the FIFO, and although they operate correctly in this burst mode on
the SPI bus, they would corrupt the regmap cache if it was not disabled
manually. The reason is that when the R/W size is more than 1 byte, these
functions assume that the register address is incremented and handle the
cache accordingly.
Convert FIFO R/W functions to use the regmap _noinc_ versions in order to
remove the manual cache control which was a workaround when using the
_raw_ versions. FIFO registers are properly declared as volatile so
cache will not be used/updated for FIFO accesses.
References
Configurations
Configuration 1 (hide)
|
History
14 Feb 2025, 16:40
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | NVD-CWE-noinfo | |
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| References | () https://git.kernel.org/stable/c/084c24e788d9cf29c55564de368bf5284f2bb5db - Mailing List, Patch | |
| References | () https://git.kernel.org/stable/c/416b10d2817c94db86829fb92ad43ce7d002c573 - Mailing List, Patch | |
| References | () https://git.kernel.org/stable/c/4e37416e4ee1b1bc17364a68973e0c63be89e611 - Mailing List, Patch | |
| References | () https://git.kernel.org/stable/c/aa7cb4787698add9367b19f7afc667662c9bdb23 - Mailing List, Patch | |
| References | () https://git.kernel.org/stable/c/dbf4ab821804df071c8b566d9813083125e6d97b - Mailing List, Patch | |
| References | () https://git.kernel.org/stable/c/e635f652696ef6f1230621cfd89c350cb5ec6169 - Mailing List, Patch | |
| References | () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - Mailing List, Patch |
Information
Published : 2024-03-11 18:15
Updated : 2025-02-14 16:40
NVD link : CVE-2023-52488
Mitre link : CVE-2023-52488
CVE.ORG link : CVE-2023-52488
JSON object : View
Products Affected
linux
- linux_kernel
CWE