5.5

CVE-2026-53339

i2c: qcom-cci: Fix NULL pointer dereference in cci_remove()

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]
    ....
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.8 < 5.10.259
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.210
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.176
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.143
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.94
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.36
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.13
Linux ≫ Linux Kernel Version7.1 Updaterc1
Linux ≫ Linux Kernel Version7.1 Updaterc2
Linux ≫ Linux Kernel Version7.1 Updaterc3
Linux ≫ Linux Kernel Version7.1 Updaterc4
Linux ≫ Linux Kernel Version7.1 Updaterc5
Linux ≫ Linux Kernel Version7.1 Updaterc6
Linux ≫ Linux Kernel Version7.1 Updaterc7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.11% 0.018
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/e8669d12da0ade52adfe0abe96cd99e708abc9bd
Patch
https://git.kernel.org/stable/c/4d2b4a9cda6837e5ee1de1290f2e773a713b71e9
Patch
https://git.kernel.org/stable/c/a50b8adb9cdb9a495b0b45583956897b7411ed7a
Patch
https://git.kernel.org/stable/c/7107627b8b35015027201e7a095a3f6e30b4a46f
Patch
https://git.kernel.org/stable/c/4cd206c1d57a9370d5219f7b1fc45169d7bdf951
Patch
https://git.kernel.org/stable/c/a162a260c8c4db7501c65220e76913e8e351f823
Patch
https://git.kernel.org/stable/c/8ce7ff721a5e9d06d53ef65d01c89fce6d26d6ff
Patch
https://git.kernel.org/stable/c/729ac5a4b966aac42e08a94dea966f4429008548
Patch