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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 to < 25a87b1f566b5eb2af2857a928f0e2310d900976affectedfb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 to < f7f6f07774091a6ddd98500b85386c3c6afb30d3affectedfb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 to < 7afdd6aba95c8a526038e7abe283eeac3e4320f1affectedfb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 to < 6892396ebf04ea2c021d80e10f4075e014cd7cc3affectedfb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 to < d90529392aaf498dafa95d212295d64b2cea4e24affectedfb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 to < 643001b47adc844ae33510c4bb93c236667008a3affected
Linux Linux
Default version status: affected
4.16affected0 to < 4.16unaffected4.19.191 to ≤ 4.19.*unaffected5.4.120 to ≤ 5.4.*unaffected5.10.38 to ≤ 5.10.*unaffected5.11.22 to ≤ 5.11.*unaffected5.12.5 to ≤ 5.12.*unaffected5.13 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/25a87b1f566b5eb2af2857a928f0e2310d900976 ↗
- https://git.kernel.org/stable/c/f7f6f07774091a6ddd98500b85386c3c6afb30d3 ↗
- https://git.kernel.org/stable/c/7afdd6aba95c8a526038e7abe283eeac3e4320f1 ↗
- https://git.kernel.org/stable/c/6892396ebf04ea2c021d80e10f4075e014cd7cc3 ↗
- https://git.kernel.org/stable/c/d90529392aaf498dafa95d212295d64b2cea4e24 ↗
- https://git.kernel.org/stable/c/643001b47adc844ae33510c4bb93c236667008a3 ↗