cbcvebase.
CVE-2021-47201
published 2024-04-10

CVE-2021-47201: In the Linux kernel, the following vulnerability has been resolved: iavf: free q_vectors before queues in iavf_disable_vf iavf_free_queues() clears…

PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
15.7th percentile
In the Linux kernel, the following vulnerability has been resolved: iavf: free q_vectors before queues in iavf_disable_vf iavf_free_queues() clears adapter->num_active_queues, which iavf_free_q_vectors() relies on, so swap the order of these two function calls in iavf_disable_vf(). This resolves a panic encountered when the interface is disabled and then later brought up again after PF communication is restored.

Affected

14 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.15.5-1 (bookworm)linux 5.15.5-1 (bookworm)
linuxlinux——
linuxlinux>= 65c7006f234c9ede887d468f595f259a5c5cc552 < 926e8c83d4c1c2dac0026637eb0d492df876489e926e8c83d4c1c2dac0026637eb0d492df876489e
linuxlinux>= 65c7006f234c9ede887d468f595f259a5c5cc552 < 78638b47132244e3934dc5dc79f6372d5ce8e98c78638b47132244e3934dc5dc79f6372d5ce8e98c
linuxlinux>= 65c7006f234c9ede887d468f595f259a5c5cc552 < 9ef6589cac9a8c47f5544ccdf4c498093733bb3f9ef6589cac9a8c47f5544ccdf4c498093733bb3f
linuxlinux>= 65c7006f234c9ede887d468f595f259a5c5cc552 < 89f22f129696ab53cfbc608e0a2184d0fea46ac189f22f129696ab53cfbc608e0a2184d0fea46ac1
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 5.10.84-15.10.84-1
linuxlinux_kernel>= 0 < 5.15.5-15.15.5-1
linuxlinux_kernel>= 0 < 5.15.5-15.15.5-1
linuxlinux_kernel>= 0 < 5.15.5-15.15.5-1
linuxlinux_kernel>= 4.13 < 5.4.1625.4.162
linuxlinux_kernel>= 5.11 < 5.15.55.15.5
linuxlinux_kernel>= 5.5 < 5.10.825.10.82

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.