UBUNTU-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.
02 / AFFECTED SOFTWARE
Affected packages
37 explicit affected versions
6 explicit affected versions
19 explicit affected versions
6 explicit affected versions
42 explicit affected versions
8 explicit affected versions
23 explicit affected versions
1 explicit affected versions
48 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
7 explicit affected versions
1 explicit affected versions
1 explicit affected versions
7 explicit affected versions
10 explicit affected versions
15 explicit affected versions
7 explicit affected versions
10 explicit affected versions
23 explicit affected versions
22 explicit affected versions
2 explicit affected versions
8 explicit affected versions
6 explicit affected versions
40 explicit affected versions
1 explicit affected versions
8 explicit affected versions
19 explicit affected versions
23 explicit affected versions
2 explicit affected versions
11 explicit affected versions
7 explicit affected versions
43 explicit affected versions
47 explicit affected versions
51 explicit affected versions
1 explicit affected versions
56 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
25 explicit affected versions
44 explicit affected versions
10 explicit affected versions
26 explicit affected versions
6 explicit affected versions
38 explicit affected versions
4 explicit affected versions
69 explicit affected versions
33 explicit affected versions
27 explicit affected versions
12 explicit affected versions
2 explicit affected versions
4 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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
- 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://git.kernel.org/linus/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9
- https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9
- https://patchwork.kernel.org/patch/11447049/
- https://ubuntu.com/security/CVE-2020-12657
- https://ubuntu.com/security/notices/USN-4363-1
- https://ubuntu.com/security/notices/USN-4367-1
- https://ubuntu.com/security/notices/USN-4368-1
- https://ubuntu.com/security/notices/USN-4369-1
- https://www.cve.org/CVERecord?id=CVE-2020-12657