CVE-2023-53146 Details
Description
In the Linux kernel, the following vulnerability has been resolved: media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer() In dw2102_i2c_transfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach dw2102_i2c_transfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 950e252cb469 ("[media] dw2102: limit messages to buffer size")
A null pointer dereference vulnerability has been identified in the Linux kernel's media dw2102 driver. The issue arises in the dw2102_i2c_transfer function, where the 'msg' parameter is user-controlled. If 'msg[i].buf' is null and 'msg[i].len' is zero, the existing checks on 'msg[i].buf' would be bypassed, allowing malicious data to reach the function. Without proper validation, accessing 'msg[i].buf[0]' could lead to a null pointer dereference, causing a crash. The vulnerability has been addressed by adding a check on 'msg[i].len' to prevent such crashes.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74 | kernel.org | Patch |
| https://git.kernel.org/stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b | kernel.org | Patch |
| https://git.kernel.org/stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c | kernel.org | Patch |
| https://git.kernel.org/stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d | kernel.org | Patch |
| https://git.kernel.org/stable/c/97fdbdb750342cbc204befde976872fedb406ee6 | kernel.org | Patch |
| https://git.kernel.org/stable/c/beb9550494e7349f92b9eaa283256a5ad9b1c9be | kernel.org | Patch |
| https://git.kernel.org/stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e | kernel.org | Patch |
| https://git.kernel.org/stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | < 4.14.326 >= 4.15, < 4.19.295 >= 4.20, < 5.4.257 >= 5.5, < 5.10.197 >= 5.11, < 5.15.133 >= 5.16, < 6.1.55 >= 6.2, < 6.5.5 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Nov 12, 2025 | Initial Analysis | [email protected] |
| May 14, 2025 | New CVE Received | kernel.org |