CVE-2026-43244

A flaw was found in the Linux kernel's Kernel Connection Multiplexer KCM module. A local user could trigger an issue where, during partial sendmsg operations, an empty network buffer skb is incorrectly left in the fraglist. A subsequent zero-length write operation can then cause a kernel warning,...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005131)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005131 advisory. In the Linux kernel, the following vulnerability has been resolved: ppp: fix pppasyncencode illegal access syzbot reported an issue in pppasyncencode 1 In this case,...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989314)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989314 advisory. In the Linux kernel, the following vulnerability has been resolved: net: netlink: afnetlink: Prevent empty skb by adding a check on len. Adding a check on len...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986582)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986582 advisory. In the Linux kernel, the following vulnerability has been resolved: net: netlink: afnetlink: Prevent empty skb by adding a check on len. Adding a check on len...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-986402)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986402 advisory. In the Linux kernel, the following vulnerability has been resolved: net: netlink: afnetlink: Prevent empty skb by adding a check on len. Adding a check on len...

DEBIAN-CVE-2023-53141

In the Linux kernel, the following vulnerability has been resolved: ila: do not generate empty messages in ilaxlatnlcmdgetmapping ilaxlatnlcmdgetmapping generates an empty skb, triggerring a recent sanity check 1. Instead, return an error code, so that user space can get it. 1 skbassertlen WARNIN...

CVE-2023-53141: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ila: do not generate empty messages in ilaxlatnlcmdgetmapping ilaxlatnlcmdgetmapping generates an empty skb, triggerring a recent sanity check 1. Instead, return an error code, so that user space can get it. 1 skbassertlen WARNIN...

UBUNTU-CVE-2024-50035

In the Linux kernel, the following vulnerability has been resolved: ppp: fix pppasyncencode illegal access syzbot reported an issue in pppasyncencode 1 In this case, pppoesendmsg is called with a zero size. Then pppasyncencode is called with an empty skb. BUG: KMSAN: uninit-value in pppasyncencod...

UBUNTU-CVE-2021-47606

In the Linux kernel, the following vulnerability has been resolved: net: netlink: afnetlink: Prevent empty skb by adding a check on len. Adding a check on len parameter to avoid empty skb. This prevents a division error in netemenqueue function which is caused when skb-len=0 and skb-datalen=0 in...

PT-2021-27199

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.10 Description A potential issue exists where an empty skb could be created due to insufficient checks on the length. The actual impact and likelihood of an attack have not been confirmed. Recommendations F...

PT-2021-27089

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.9.294 Description A potential issue exists where an empty skb could be created due to insufficient checks on the length. The actual impact and likelihood of an attack have not been confirmed. Recommendations F...

PT-2021-27137

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.4.167 Description A potential issue exists where an empty skb could be created, but the actual impact and attack plausibility have not yet been proven. Recommendations For Linux Kernel versions prior to...

PT-2021-27162

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.87 Description A potential issue exists where an empty skb could be created due to insufficient checks on the length. The actual impact and attack plausibility have not yet been proven. Recommendations For...

PT-2021-27101

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.14.259 Description A potential issue exists where an empty skb could be created due to insufficient checks on the length. The actual impact and attack plausibility have not yet been proven. Recommendations For...

PT-2021-8231

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.16.0-rc1+ Description The vulnerability is related to a division error in the netem enqueue function, which occurs when the skb-len and skb-data len are both zero. This error is caused by a lack of check on the...