CVE-2026-53339
i2c: qcom-cci: Fix NULL pointer dereference in cci_remove()
Description
In the Linux kernel, the following vulnerability has been resolved: i2c: qcom-cci: Fix NULL pointer dereference in cci_remove() On all modern platforms Qualcomm CCI controller provides two I2C masters, and on particular boards only one I2C master may be initialized, and in such cases the device unbinding or driver removal causes a NULL pointer dereference, because cci_halt() is called for all two I2C masters, but a completion is initialized only for the single enabled master: % rmmod i2c-qcom-cci Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 <snip> Call trace: __wait_for_common+0x194/0x1a8 (P) wait_for_completion_timeout+0x20/0x2c cci_remove+0xc4/0x138 [i2c_qcom_cci] platform_remove+0x20/0x30 device_remove+0x4c/0x80 device_release_driver_internal+0x1c8/0x224 driver_detach+0x50/0x98 bus_remove_driver+0x6c/0xbc driver_unregister+0x30/0x60 platform_driver_unregister+0x14/0x20 qcom_cci_driver_exit+0x18/0x1008 [i2c_qcom_cci] ....
INFO
Published Date :
July 1, 2026, 2:16 p.m.
Last Modified :
July 23, 2026, 9:33 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to the latest patched version.
- Ensure all necessary kernel modules are loaded correctly.
- Test driver removal after applying the patch.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53339.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53339 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53339
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53339 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53339 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jul. 23, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.176 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.143 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.210 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.94 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.13 *cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.8 up to (excluding) 5.10.259 Added Reference Type kernel.org: https://git.kernel.org/stable/c/4cd206c1d57a9370d5219f7b1fc45169d7bdf951 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4d2b4a9cda6837e5ee1de1290f2e773a713b71e9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7107627b8b35015027201e7a095a3f6e30b4a46f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/729ac5a4b966aac42e08a94dea966f4429008548 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8ce7ff721a5e9d06d53ef65d01c89fce6d26d6ff Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a162a260c8c4db7501c65220e76913e8e351f823 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a50b8adb9cdb9a495b0b45583956897b7411ed7a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e8669d12da0ade52adfe0abe96cd99e708abc9bd Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 01, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'e517526195de400158e05a08764d1fb61d579105', 'lessThan': 'e8669d12da0ade52adfe0abe96cd99e708abc9bd', 'versionType': 'git'}, {'status': 'affected', 'version': 'e517526195de400158e05a08764d1fb61d579105', 'lessThan': '4d2b4a9cda6837e5ee1de1290f2e773a713b71e9', 'versionType': 'git'}, {'status': 'affected', 'version': 'e517526195de400158e05a08764d1fb61d579105', 'lessThan': 'a50b8adb9cdb9a495b0b45583956897b7411ed7a', 'versionType': 'git'}, {'status': 'affected', 'version': 'e517526195de400158e05a08764d1fb61d579105', 'lessThan': '7107627b8b35015027201e7a095a3f6e30b4a46f', 'versionType': 'git'}, {'status': 'affected', 'version': 'e517526195de400158e05a08764d1fb61d579105', 'lessThan': '4cd206c1d57a9370d5219f7b1fc45169d7bdf951', 'versionType': 'git'}, {'status': 'affected', 'version': 'e517526195de400158e05a08764d1fb61d579105', 'lessThan': 'a162a260c8c4db7501c65220e76913e8e351f823', 'versionType': 'git'}, {'status': 'affected', 'version': 'e517526195de400158e05a08764d1fb61d579105', 'lessThan': '8ce7ff721a5e9d06d53ef65d01c89fce6d26d6ff', 'versionType': 'git'}, {'status': 'affected', 'version': 'e517526195de400158e05a08764d1fb61d579105', 'lessThan': '729ac5a4b966aac42e08a94dea966f4429008548', 'versionType': 'git'}], 'programFiles': ['drivers/i2c/busses/i2c-qcom-cci.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.8', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.259', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.94', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/i2c/busses/i2c-qcom-cci.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: i2c: qcom-cci: Fix NULL pointer dereference in cci_remove() On all modern platforms Qualcomm CCI controller provides two I2C masters, and on particular boards only one I2C master may be initialized, and in such cases the device unbinding or driver removal causes a NULL pointer dereference, because cci_halt() is called for all two I2C masters, but a completion is initialized only for the single enabled master: % rmmod i2c-qcom-cci Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 <snip> Call trace: __wait_for_common+0x194/0x1a8 (P) wait_for_completion_timeout+0x20/0x2c cci_remove+0xc4/0x138 [i2c_qcom_cci] platform_remove+0x20/0x30 device_remove+0x4c/0x80 device_release_driver_internal+0x1c8/0x224 driver_detach+0x50/0x98 bus_remove_driver+0x6c/0xbc driver_unregister+0x30/0x60 platform_driver_unregister+0x14/0x20 qcom_cci_driver_exit+0x18/0x1008 [i2c_qcom_cci] .... Added Reference https://git.kernel.org/stable/c/4cd206c1d57a9370d5219f7b1fc45169d7bdf951 Added Reference https://git.kernel.org/stable/c/4d2b4a9cda6837e5ee1de1290f2e773a713b71e9 Added Reference https://git.kernel.org/stable/c/7107627b8b35015027201e7a095a3f6e30b4a46f Added Reference https://git.kernel.org/stable/c/729ac5a4b966aac42e08a94dea966f4429008548 Added Reference https://git.kernel.org/stable/c/8ce7ff721a5e9d06d53ef65d01c89fce6d26d6ff Added Reference https://git.kernel.org/stable/c/a162a260c8c4db7501c65220e76913e8e351f823 Added Reference https://git.kernel.org/stable/c/a50b8adb9cdb9a495b0b45583956897b7411ed7a Added Reference https://git.kernel.org/stable/c/e8669d12da0ade52adfe0abe96cd99e708abc9bd