PT-2026-106537

In the Linux kernel, the following vulnerability has been resolved: mmc: sdio uart: fix xmit fifo leak when the port table is full sdio uart add port allocates the transmit fifo before claiming a slot in sdio uart table. When all UART NR slots are taken, it returns -EBUSY with the fifo still...

PT-2026-106680

In the Linux kernel, the following vulnerability has been resolved: wifi: virt wifi: free skb when disconnected When the simulated link is disconnected, virt wifi start xmit returns NET XMIT DROP without freeing the skb. dev hard start xmit treats this return value as consumed, so every packet se...

PT-2026-106603

In the Linux kernel, the following vulnerability has been resolved: net: psp: avoid conflicts with skb-decrypted and sk validate xmit skb PSP conflicts with TLS ULP in its usage of both skb-decrypted and sk-sk validate xmit skb. Make PSP mutually exclusive with TLS ULP, the only other user of...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: xfrm: Policy issue: Fixing the metadata dst-dev xmit null pointer dereference. When we attempt to transmit an skb with metadatadst attached i.e., dst-dev == NULL through the xfrm interface, we may encounter a null pointer...

PT-2026-98733

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Reliable Datagram Sockets RDS implementation where the rds tcp reset callbacks function fails to properly synchronize the transmit path. The function attempts to...

PT-2026-98793

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A DMA mapping leak occurs in the stmmac tso xmit function. When the DMA mapping of an skb fragment fails, the frame is dropped; however, the DMA mappings previously created for the linea...

PT-2026-94419

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the sch teql scheduler where the teql master xmit function sets the skb-dev variable to a slave device before calling ndo start xmit, but fails to restore it if the...

PT-2026-94508

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the lwt bpf component where the headroom check after an LWT XMIT BPF program is insufficient. The ip finish output2 function expands a socket buffer skb to LL RESERVED...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net: bridge: xmit: Ensure that the ethheaderlen field is set to a valid value. The syzbot triggered an uninitvalue1 error in the bridgedevice’s xmit path by sending a packet shorter than ETHHLEN bytes. To fix this issue, check...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: lwt: Fixed the return values of BPF xmit operations. The BPF encap operations can return different types of positive values, such as NETRXDROP, NETXMITCN, NETDEVTXBUSY, etc., from the functions skbdoredirect and...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Wifi: mac80211: Fixed a race condition when enabling fast-xmit. fast-xmit must only be enabled after the station has been uploaded to the driver. Otherwise, it might pass the yet-to-be-uploaded station through drvtx calls to the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: be2net: fixed a potential memory leak in bexmit. bexmit returns NETDEVTXOK without freeing the skb variable, in case bexmitenqueue fails. To address this issue, add devkfreeskbany to properly handle the situation...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: s390/lcs: Fixed the return type of lcsstartxmit With Clang’s Kernel Control Flow Integrity kCFI, CONFIGCFICLANG, indirect call targets are validated against the expected function pointer prototype to ensure that the call target i...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Staging: r8712: Fixed a memory leak in r8712initxmitpriv In the aforementioned routine, memory is allocated in several places. If the first attempt to allocate memory succeeds, but a subsequent attempt fails, the routine will cau...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: mxser: fixed the xmitbuf leak in activate when LSR == 0xff. When LSR is 0xff during the call to -activate, we return an error. It is ensured that the -shutdown method is not called when -activate fails; otherwise, nothing actuall...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: can: vxcan: vxcanxmit: fix use after free bug After calling netifrxniskb, dereferencing the skb is unsafe. In particular, the canfdframe structure, which aliases skb memory, is accessed after the netifrxni function...

PT-2026-96395

In the Linux kernel, the following vulnerability has been resolved: ip6 tunnel: use skb cow head in ip6 tnl xmit ip6 tnl xmit may need to expand headroom before it can push the outer IPv6 and optional encap headers. It currently does that with skb realloc headroom, copies skb-sk ownership, consum...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053414)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053414 advisory. In the Linux kernel, the following vulnerability has been resolved: net: bridge: xmit: make sure we have at least eth header len bytes syzbot triggered an uninit...

PT-2026-85633

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6 finish output2 ip6 finish output2 caches a pointer to the IPv6 destination address daddr before invoking lwtunnel xmit. The LWT-BPF transmit path or other encapsulation operations within lwtunnel...

PT-2026-91307

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6 finish output2 ip6 finish output2 caches a pointer to the IPv6 destination address daddr before invoking lwtunnel xmit. The LWT-BPF transmit path or other encapsulation operations within lwtunnel...