A flaw was found in the CXGB3 kernel driver when the network was considered congested. The kernel would incorrectly misinterpret the congestion as an error condition and incorrectly free/clean up the skb. When the device would then send the skb's queued, these structures would be referenced and may panic the system or allow an attacker to escalate privileges in a use-after-free scenario.

From the patch:

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The cxgb3send() functions return NETXMIT values, which are positive integers values. So don't treat positive return values as an error. ----

Upstream commit: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=67f1aee6f45059fd6b0f5b0ecb2c97ad0451f6b3

CVE assignment: http://seclists.org/oss-sec/2016/q1/311

Last updated 24 July 2024

An use after free flaw was found in the Linux kernel SCTP implementation handled auth keys reference counting during INIT collisions.

A remote user could use this flaw to crash the system or, though unlikely, escalate their privileges on the system.

Upstream patch:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=600ddd6825543962fb807884169e57b580dba208

Acknowledgements:

This issue was discovered by Sun Baoliang of Red Hat.

drivers/staging/ozwpan/ozusbsvc1.c in the OZWPAN driver in the Linux kernel through 4.0.5 does not ensure that certain length values are sufficiently large, which allows remote attackers to cause a denial of service (system crash or large loop) or possibly execute arbitrary code via a crafted packet, related to the (1) ozusbrx and (2) ozusbhandleepdata functions.