UBUNTU-CVE-2021-47101
In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asix_mdio_read() asix_read_cmd() may read less than sizeof(smsr) bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 BUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497
02 / AFFECTED SOFTWARE
Affected packages
12 explicit affected versions
6 explicit affected versions
70 explicit affected versions
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35 explicit affected versions
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37 explicit affected versions
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7 explicit affected versions
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3 explicit affected versions
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1 explicit affected versions
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12 explicit affected versions
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89 explicit affected versions
13 explicit affected versions
53 explicit affected versions
7 explicit affected versions
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10 explicit affected versions
12 explicit affected versions
89 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
7 explicit affected versions
61 explicit affected versions
126 explicit affected versions
105 explicit affected versions
4 explicit affected versions
98 explicit affected versions
43 explicit affected versions
55 explicit affected versions
150 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
90 explicit affected versions
4 explicit affected versions
78 explicit affected versions
1 explicit affected versions
52 explicit affected versions
50 explicit affected versions
6 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asix_mdio_read() asix_read_cmd() may read less than sizeof(smsr) bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 BUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03
- https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03
- https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56
- https://ubuntu.com/security/CVE-2021-47101
- https://ubuntu.com/security/notices/USN-7173-1
- https://ubuntu.com/security/notices/USN-7173-2
- https://ubuntu.com/security/notices/USN-7173-3
- https://ubuntu.com/security/notices/USN-7195-1
- https://ubuntu.com/security/notices/USN-7195-2
- https://ubuntu.com/security/notices/USN-7413-1
- https://ubuntu.com/security/notices/USN-7428-1
- https://ubuntu.com/security/notices/USN-7428-2
- https://www.cve.org/CVERecord?id=CVE-2021-47101