UBUNTU-CVE-2021-47521
In the Linux kernel, the following vulnerability has been resolved: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up.
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
13 explicit affected versions
191 explicit affected versions
7 explicit affected versions
76 explicit affected versions
39 explicit affected versions
56 explicit affected versions
29 explicit affected versions
35 explicit affected versions
18 explicit affected versions
88 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
99 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
43 explicit affected versions
3 explicit affected versions
51 explicit affected versions
12 explicit affected versions
42 explicit affected versions
31 explicit affected versions
10 explicit affected versions
165 explicit affected versions
37 explicit affected versions
98 explicit affected versions
10 explicit affected versions
1 explicit affected versions
26 explicit affected versions
13 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
70 explicit affected versions
1 explicit affected versions
44 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
55 explicit affected versions
11 explicit affected versions
12 explicit affected versions
78 explicit affected versions
7 explicit affected versions
12 explicit affected versions
42 explicit affected versions
2 explicit affected versions
39 explicit affected versions
10 explicit affected versions
26 explicit affected versions
13 explicit affected versions
16 explicit affected versions
3 explicit affected versions
1 explicit affected versions
10 explicit affected versions
51 explicit affected versions
32 explicit affected versions
12 explicit affected versions
27 explicit affected versions
1 explicit affected versions
1 explicit affected versions
36 explicit affected versions
8 explicit affected versions
5 explicit affected versions
33 explicit affected versions
8 explicit affected versions
1 explicit affected versions
32 explicit affected versions
10 explicit affected versions
13 explicit affected versions
1 explicit affected versions
7 explicit affected versions
32 explicit affected versions
10 explicit affected versions
12 explicit affected versions
29 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
37 explicit affected versions
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
142 explicit affected versions
32 explicit affected versions
7 explicit affected versions
75 explicit affected versions
12 explicit affected versions
86 explicit affected versions
63 explicit affected versions
4 explicit affected versions
54 explicit affected versions
32 explicit affected versions
43 explicit affected versions
1 explicit affected versions
122 explicit affected versions
103 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
33 explicit affected versions
4 explicit affected versions
21 explicit affected versions
1 explicit affected versions
10 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45
- https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec
- https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a
- https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45
- https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039ce
- https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288
- https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36
- https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4
- https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa
- https://ubuntu.com/security/CVE-2021-47521
- https://ubuntu.com/security/notices/USN-6976-1
- https://www.cve.org/CVERecord?id=CVE-2021-47521