Medium severity6.4NVD Advisory· Published Mar 11, 2021· Updated Jun 17, 2026
CVE-2021-20261
CVE-2021-20261
Description
A race condition was found in the Linux kernels implementation of the floppy disk drive controller driver software. The impact of this issue is lessened by the fact that the default permissions on the floppy device (/dev/fd0) are restricted to root. If the permissions on the device have changed the impact changes greatly. In the default configuration root (or equivalent) permissions are required to attack this flaw.
AI Insight
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Affected products
11- Linux/Linux kerneldescription
- osv-coords9 versionspkg:rpm/suse/kernel-bigmem&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/kernel-ppc64&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS
< 3.0.101-108.126.1+ 8 more
- (no CPE)range: < 3.0.101-108.126.1
- (no CPE)range: < 3.0.101-108.126.1
- (no CPE)range: < 3.0.101-108.126.1
- (no CPE)range: < 3.0.101-108.126.1
- (no CPE)range: < 3.0.101-108.126.1
- (no CPE)range: < 3.0.101-108.126.1
- (no CPE)range: < 3.0.101-108.126.1
- (no CPE)range: < 3.0.101-108.126.1
- (no CPE)range: < 3.0.101-108.126.1
Patches
Vulnerability mechanics
References
2- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/nvdMailing ListPatchVendor Advisory
News mentions
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