Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989516)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989516 advisory. In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989955)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989955 advisory. In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989975)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989975 advisory. In the Linux kernel, the following vulnerability has been resolved: tun: add missing verification for short frame The cited commit missed to check against the validi...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989959)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989959 advisory. In the Linux kernel, the following vulnerability has been resolved: llc: verify mac len before reading mac header LLC reads the mac header with ethhdr without...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989440)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989440 advisory. In the Linux kernel, the following vulnerability has been resolved: net: tun: Fix use-after-free in tundetach syzbot reported use-after-free in tundetach 1. This...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-990173)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990173 advisory. In the Linux kernel, the following vulnerability has been resolved: net: tun: Fix memory leaks of napigetfrags kmemleak reports after running testprogs: unreference...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988754)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988754 advisory. In the Linux kernel, the following vulnerability has been resolved: llc: verify mac len before reading mac header LLC reads the mac header with ethhdr without...

Unity Linux 20.1050e Security Update: kernel (UTSA-2025-989794)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989794 advisory. In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device...

Linux Distros Unpatched Vulnerability : CVE-2025-39984

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after- free in skbresetmacheader include/linux/skbuff.h:3150...

Siemens SIMATIC Devices Allocation of Resources Without Limits or Throttling (CVE-2024-27013)

In the Linux kernel, the following vulnerability has been resolved: tun: limit printing rate when illegal packet received by tun dev vhostworker will call tun call backs to receive packets. If too many illegal packets arrives, tundoread will keep dumping packet contents. When console is enabled, ...

EUVD-2022-54561

In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device destruction. NAPIs live in struct tunfile which can get destroyed before the netdev so we have to del them explicitly. The current...

SUSE CVE-2025-39984

In the Linux kernel, the following vulnerability has been resolved: net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb net/core/gro.c:723...

CVE-2025-39984

In the Linux kernel, the following vulnerability has been resolved: net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb net/core/gro.c:723...

EUVD-2025-34588

In the Linux kernel, the following vulnerability has been resolved: net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb net/core/gro.c:723...

CVE-2025-39984

In the Linux kernel, the following vulnerability has been resolved: net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb net/core/gro.c:723...

UBUNTU-CVE-2025-39984

In the Linux kernel, the following vulnerability has been resolved: net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb net/core/gro.c:723...

CVE-2025-39984 net: tun: Update napi->skb after XDP process

In the Linux kernel, the following vulnerability has been resolved: net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb net/core/gro.c:723...

CVE-2025-39984 net: tun: Update napi->skb after XDP process

In the Linux kernel, the following vulnerability has been resolved: net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb net/core/gro.c:723...

CVE-2025-39984

The CVE-2025-39984 vulnerability affects the Linux kernel’s tun/tap/XDP path. The issue arises when, after an XDP processing, the original skb can be freed (UAF scenario); the fix updates napi->skb after the XDP process to avoid dangling pointers. Affected component: net/tun and gro flow where...

Linux Distros Unpatched Vulnerability : CVE-2023-53685

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tun: Fix memory leak for detached NAPI queue. syzkaller reported 0 memory leaks of sk and skb related to the TUN device with no repro, but we can reproduce it...