CVE-2020-12657
High
CVE-2020-12657
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.
Exploit probability
0.7%
Published
May 5, 2020
Required by
Not available
Last source change
March 15, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2020-12657
View original source
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.
05 / REFERENCES
Further evidence
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9
- https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9
- https://patchwork.kernel.org/patch/11447049/
- https://security.netapp.com/advisory/ntap-20200608-0001/
- https://usn.ubuntu.com/4363-1/
- https://usn.ubuntu.com/4367-1/
- https://usn.ubuntu.com/4368-1/
- https://usn.ubuntu.com/4369-1/