UBUNTU-CVE-2019-19768
In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).
02 / AFFECTED SOFTWARE
Affected packages
6 explicit affected versions
191 explicit affected versions
41 explicit affected versions
22 explicit affected versions
1 explicit affected versions
47 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
7 explicit affected versions
1 explicit affected versions
45 explicit affected versions
14 explicit affected versions
10 explicit affected versions
22 explicit affected versions
44 explicit affected versions
21 explicit affected versions
7 explicit affected versions
5 explicit affected versions
39 explicit affected versions
1 explicit affected versions
18 explicit affected versions
23 explicit affected versions
1 explicit affected versions
11 explicit affected versions
79 explicit affected versions
2 explicit affected versions
42 explicit affected versions
46 explicit affected versions
108 explicit affected versions
51 explicit affected versions
55 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
66 explicit affected versions
24 explicit affected versions
44 explicit affected versions
9 explicit affected versions
26 explicit affected versions
5 explicit affected versions
38 explicit affected versions
3 explicit affected versions
86 explicit affected versions
68 explicit affected versions
21 explicit affected versions
32 explicit affected versions
26 explicit affected versions
12 explicit affected versions
4 explicit affected versions
1 explicit affected versions
77 explicit affected versions
36 explicit affected versions
6 explicit affected versions
18 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).
05 / REFERENCES
Further evidence
- https://bugzilla.kernel.org/show_bug.cgi?id=205711
- https://lore.kernel.org/linux-block/[email protected]/
- https://ubuntu.com/security/CVE-2019-19768
- https://ubuntu.com/security/notices/USN-4342-1
- https://ubuntu.com/security/notices/USN-4344-1
- https://ubuntu.com/security/notices/USN-4345-1
- https://ubuntu.com/security/notices/USN-4346-1
- https://www.cve.org/CVERecord?id=CVE-2019-19768