Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: nvmet-tcp: bounds checks were added in nvmettcpbuildpduiovec. The nvmettcpbuildpduiovec function could exceed the range of cmd-req.sg when the PDU length or offset exceeds sgcnt, and then use bogus values for sg-length/offset...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/siw: Fixed a potential NULL pointer dereference during header processing. If siwgethdr returns -EINVAL before setrxfpducontext, qp-rxfpdu can be NULL. The error path in siwtcprxdata dereferences qp-rxfpdu-moreddpsegs...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Avoid invalid reads in irdmanetevent. The irdmanetevent function should not dereference anything from “neigh” alias “ptr” until it has checked that the event is of type NETEVENTNEIGHUPDATE. Other events are pointed to...

CVE-2026-52937

In the Linux kernel, the following vulnerability has been resolved: tap: fix stack info leak in tapioctl SIOCGIFHWADDR In the SIOCGIFHWADDR path, tapioctl copies 16 bytes of an uninitialised on-stack struct sockaddrstorage to userspace via ifrhwaddr, but netifgetmacaddress only writes safamily an...

PT-2026-54811

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ARM architecture implementation where the switch to function performs a dummy read from the KASAN VMAP stack shadow using the ldr instruction. Because the KASAN...

CVE-2026-46133

The CVE-2026-46133 issue affects Linux kernel’s Soft RoCE (RDMA/rxe) where an unauthenticated UDP packet with an unknown opcode could trigger an out-of-bounds read during ICRC/CRC processing due to missing validation of opcodes before length arithmetic. The advisory describes that entries in the ...

Exploit for Untrusted Pointer Dereference in Microsoft

CVE-2026-40369: Defensive Analysis of the 12-Byte Windows Kern...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - Ice: Fixed the KASAN error in the LAG NETDEVUNREGISTER handler. Currently, the same handler is called for both the NETDEVBONDINGINFO LAG unlink notification and the NETDEVUNREGISTER call. This causes problems, as the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: BPF: Fixed kernel address leakage in atomic cmpxchg operations with R0 as an auxiliary register. The implementation of BPFCMPXCHG at a high level has the following parameters: .-old-val .-new-val BPFR0 = cmpxchg32,64DSTREG +...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: zloop: Fixed the KASAN use-after-free of the tagset. When a zloop device is removed, the KASAN-enabled kernel reports a “BUG KASAN use-after-free” in the blkmqfreetagset function. This bug occurs because zloopctlRemove calls...

Exploit for CVE-2026-40369

CVE-2026-40369: Arbitrary Kernel Address Increment via NtQuery...

CVE-2026-43449

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: Fix slab-out-of-bounds in nvmedbbufset dev-onlinequeues is a count incremented in nvmeinitqueue. Thus, valid indices are 0 through dev-onlinequeues − 1. This patch fixes the loop condition to ensure the index stays with...

CVE-2026-43197

CVE-2026-43197 concerns a Linux kernel netconsole vulnerability where messages from the console subsystem could be read out-of-bounds due to missing null-termination. The root cause is a netconsole write path that could access memory beyond the allocated buffer, observable as a slab-out-of-bounds...

CVE-2026-31686

A flaw was found in the Linux kernel. A double-free vulnerability exists in the Kernel Address Sanitizer KASAN component, specifically within the kasanfreepxd function. This issue arises because the function incorrectly assumes that page tables are always page-aligned, which is not consistent...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

CVE-2026-31513 Bluetooth: L2CAP: Fix stack-out-of-bounds read in l2cap_ecred_conn_req

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix stack-out-of-bounds read in l2capecredconnreq Syzbot reported a KASAN stack-out-of-bounds read in l2capbuildcmd that is triggered by a malformed Enhanced Credit Based Connection Request. The vulnerability...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013358)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013358 advisory. In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix loop termination condition in gssfreeintokenpages The intoken-pages array is not NULL...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013151)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013151 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 kasan, vmalloc: unpoison...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013181)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013181 advisory. In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Sync IRQ works before buffer destruction If something was written to the buffer just...