Description
An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.
References (10)
Core 10
Core References
Patch, Vendor Advisory x_refsource_misc
https://patchwork.kernel.org/patch/11447049/
Release Notes, Vendor Advisory x_refsource_misc
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5
Patch, Third Party Advisory x_refsource_misc
https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9
Patch, Vendor Advisory x_refsource_misc
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4367-1/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4368-1/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4363-1/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4369-1/
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200608-0001/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
Scores
CVSS v3
7.8
EPSS
0.0004
EPSS Percentile
12.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-416
Status
published
Products (1)
linux/linux_kernel
< 5.6.5
Published
May 05, 2020
Tracked Since
Feb 18, 2026