CVE-2022-49524

HIGH

Linux Kernel < 4.14.283 Use-After-Free in cx23885_initdev() Error Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: media: pci: cx23885: Fix the error handling in cx23885_initdev() When the driver fails to call the dma_set_mask(), the driver will get the following splat: [ 55.853884] BUG: KASAN: use-after-free in __process_removed_driver+0x3c/0x240 [ 55.854486] Read of size 8 at addr ffff88810de60408 by task modprobe/590 [ 55.856822] Call Trace: [ 55.860327] __process_removed_driver+0x3c/0x240 [ 55.861347] bus_for_each_dev+0x102/0x160 [ 55.861681] i2c_del_driver+0x2f/0x50 This is because the driver has initialized the i2c related resources in cx23885_dev_setup() but not released them in error handling, fix this bug by modifying the error path that jumps after failing to call the dma_set_mask().

Scores

CVSS v3 7.8
EPSS 0.0025
EPSS Percentile 15.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (26)
linux/Kernel 4.15.0 - 4.19.247linux
linux/Kernel 4.20.0 - 5.4.198linux
linux/Kernel 4.8.0 - 4.14.283linux
linux/Kernel 5.11.0 - 5.15.46linux
linux/Kernel 5.16.0 - 5.17.14linux
linux/Kernel 5.18.0 - 5.18.3linux
linux/Kernel 5.5.0 - 5.10.121linux
Linux/Linux < 4.8
Linux/Linux 2bc46b3ad3c15165f91459b07ff8682478683194 - 453514a874c78df1e7804e6e3aaa60c8d8deb6a8
Linux/Linux 2bc46b3ad3c15165f91459b07ff8682478683194 - 6041d1a0365baa729b6adfb6ed5386d9388018db
... and 16 more
Published Feb 26, 2025
Tracked Since Feb 18, 2026