CVE-2021-47101 (GCVE-0-2021-47101)

Vulnerability from cvelistv5 – Published: 2024-03-04 18:10 – Updated: 2025-05-04 07:04
VLAI?
Title
asix: fix uninit-value in asix_mdio_read()
Summary
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
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d9fe64e511144c1ee7d7555b4111f09dde9692ef , < d259f621c85949f30cc578cac813b82bb5169f56 (git)
Affected: d9fe64e511144c1ee7d7555b4111f09dde9692ef , < 8035b1a2a37a29d8c717ef84fca8fe7278bc9f03 (git)
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    Linux Linux Affected: 4.9
Unaffected: 0 , < 4.9 (semver)
Unaffected: 5.15.12 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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