CVE - CVE-2021-46998

CVE-ID
CVE-2021-46998	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: ethernet:enic: Fix a use after free bug in enic_hard_start_xmit In enic_hard_start_xmit, it calls enic_queue_wq_skb(). Inside enic_queue_wq_skb, if some error happens, the skb will be freed by dev_kfree_skb(skb). But the freed skb is still used in skb_tx_timestamp(skb). My patch makes enic_queue_wq_skb() return error and goto spin_unlock() incase of error. The solution is provided by Govind. See https://lkml.org/lkml/2021/4/30/961.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/25a87b1f566b5eb2af2857a928f0e2310d900976 URL:https://git.kernel.org/stable/c/25a87b1f566b5eb2af2857a928f0e2310d900976 MISC:https://git.kernel.org/stable/c/643001b47adc844ae33510c4bb93c236667008a3 URL:https://git.kernel.org/stable/c/643001b47adc844ae33510c4bb93c236667008a3 MISC:https://git.kernel.org/stable/c/6892396ebf04ea2c021d80e10f4075e014cd7cc3 URL:https://git.kernel.org/stable/c/6892396ebf04ea2c021d80e10f4075e014cd7cc3 MISC:https://git.kernel.org/stable/c/7afdd6aba95c8a526038e7abe283eeac3e4320f1 URL:https://git.kernel.org/stable/c/7afdd6aba95c8a526038e7abe283eeac3e4320f1 MISC:https://git.kernel.org/stable/c/d90529392aaf498dafa95d212295d64b2cea4e24 URL:https://git.kernel.org/stable/c/d90529392aaf498dafa95d212295d64b2cea4e24 MISC:https://git.kernel.org/stable/c/f7f6f07774091a6ddd98500b85386c3c6afb30d3 URL:https://git.kernel.org/stable/c/f7f6f07774091a6ddd98500b85386c3c6afb30d3
Assigning CNA
kernel.org
Date Record Created
20240227	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240227)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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