CVE-2022-49422

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: idxd: Fix the error handling path in idxd_cdev_register()

If a call to alloc_chrdev_region() fails, the already allocated resources
are leaking.

Add the needed error handling path to fix the leak.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
LinuxCNA
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 9%
VendorProductVersion
linuxlinux_kernel
5.6 ≤
𝑥
< 5.10.121
linuxlinux_kernel
5.11 ≤
𝑥
< 5.15.46
linuxlinux_kernel
5.16 ≤
𝑥
< 5.17.14
linuxlinux_kernel
5.18 ≤
𝑥
< 5.18.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.234-1
fixed
bookworm
6.1.123-1
fixed
bookworm (security)
6.1.128-1
fixed
trixie
6.12.12-1
fixed
sid
6.12.16-1
fixed
References
https://git.kernel.org/stable/c/5e88561eceb34ae3f88451c2b8e30fe403484189
https://git.kernel.org/stable/c/6073af78156b8c3fc1198f8bcc190b7ac3ac0143
https://git.kernel.org/stable/c/aab08c1aac01097815fbcf10fce7021d2396a31f
https://git.kernel.org/stable/c/b3c7b5d08e9d5b2ff31c03078c00ecf11042419f
https://git.kernel.org/stable/c/c308a2e711a52a47f4b45e7add2b5200169e429a