CVE-2026-46063

In the Linux kernel, the following vulnerability has been resolved: x86/shstk: Prevent deadlock during shstk sigreturn During sigreturn the shadow stack signal frame is popped. The kernel does this by reading the shadow stack using normal read accesses. When it can't assume the memory is shadow...

CVE-2026-45903

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix memory access flags in helper prototypes After commit 37cce22dbd51 "bpf: verifier: Refactor helper access type tracking", the verifier started relying on the access type flags in helper function prototypes to perform...

CVE-2026-45876

In the Linux kernel, the following vulnerability has been resolved: arm64/gcs: Fix error handling in archsetshadowstackstatus allocgcs returns an error-encoded pointer on failure, which comes from dommap, not NULL. The current NULL check fails to detect errors, which could lead to using an invali...

UBUNTU-CVE-2026-45975

In the Linux kernel, the following vulnerability has been resolved: ublk: use READONCE to read struct ublksrvctrlcmd struct ublksrvctrlcmd is part of the iouringsqe, which may lie in userspace-mapped memory. It's racy to access its fields with normal loads, as userspace may write to them...

UBUNTU-CVE-2026-45959

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree Annotating a local pointer variable, which will be assigned with the kmalloc-family functions, with the cleanupkfree attribute will make the address of the local...

UBUNTU-CVE-2026-45903

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix memory access flags in helper prototypes After commit 37cce22dbd51 "bpf: verifier: Refactor helper access type tracking", the verifier started relying on the access type flags in helper function prototypes to perform...

UBUNTU-CVE-2026-45876

In the Linux kernel, the following vulnerability has been resolved: arm64/gcs: Fix error handling in archsetshadowstackstatus allocgcs returns an error-encoded pointer on failure, which comes from dommap, not NULL. The current NULL check fails to detect errors, which could lead to using an invali...

UBUNTU-CVE-2026-46063

In the Linux kernel, the following vulnerability has been resolved: x86/shstk: Prevent deadlock during shstk sigreturn During sigreturn the shadow stack signal frame is popped. The kernel does this by reading the shadow stack using normal read accesses. When it can't assume the memory is shadow...

CVE-2025-71306

In the Linux kernel, the following vulnerability has been resolved: ima: Fix stack-out-of-bounds in isbprmcredsforexec KASAN reported a stack-out-of-bounds access in imaappraisemeasurement from isbprmcredsforexec: BUG: KASAN: stack-out-of-bounds in imaappraisemeasurement+0x12dc/0x16a0 Read of siz...

UBUNTU-CVE-2025-71306

In the Linux kernel, the following vulnerability has been resolved: ima: Fix stack-out-of-bounds in isbprmcredsforexec KASAN reported a stack-out-of-bounds access in imaappraisemeasurement from isbprmcredsforexec: BUG: KASAN: stack-out-of-bounds in imaappraisemeasurement+0x12dc/0x16a0 Read of siz...

libsolv: Stack-based buffer overflow in libsolv's Debian metadata parser when handling SHA384/SHA512 checksums

A flaw was found in libsolv. This stack-based buffer overflow vulnerability occurs in libsolv's Debian metadata parser when processing specially crafted Debian repository metadata. An attacker could exploit this by providing malicious SHA384 or SHA512 checksum tags, leading to memory corruption a...

EUVD-2026-32445

In the Linux kernel, the following vulnerability has been resolved: x86/shstk: Prevent deadlock during shstk sigreturn During sigreturn the shadow stack signal frame is popped. The kernel does this by reading the shadow stack using normal read accesses. When it can't assume the memory is shadow...

CVE-2026-46063 x86/shstk: Prevent deadlock during shstk sigreturn

In the Linux kernel, the following vulnerability has been resolved: x86/shstk: Prevent deadlock during shstk sigreturn During sigreturn the shadow stack signal frame is popped. The kernel does this by reading the shadow stack using normal read accesses. When it can't assume the memory is shadow...

CVE-2026-46063

The CVE-2026-46063 issue affects the Linux kernel with x86 shadow stack (shstk) handling of sigreturn. Root cause: during a shadow-stack sigframe read, the kernel previously held the mmap lock while verifying VMA flags to distinguish shadow stack memory. A page fault during this read could trigge...

CVE-2026-46063

In the Linux kernel, the following vulnerability has been resolved: x86/shstk: Prevent deadlock during shstk sigreturn During sigreturn the shadow stack signal frame is popped. The kernel does this by reading the shadow stack using normal read accesses. When it can't assume the memory is shadow...

CVE-2026-46063 x86/shstk: Prevent deadlock during shstk sigreturn

In the Linux kernel, the following vulnerability has been resolved: x86/shstk: Prevent deadlock during shstk sigreturn During sigreturn the shadow stack signal frame is popped. The kernel does this by reading the shadow stack using normal read accesses. When it can't assume the memory is shadow...

SUSE CVE-2026-49014

In GDAL 3.1.0 through 3.13.0, scanForGeometryContainers in the netCDF driver allows code execution via a stack-based buffer overflow. It reads a geometry attribute into a fixed-size stack buffer without validating the attribute length. The attacker embeds the exploit as an oversized geometry...

CVE-2026-45975 ublk: use READ_ONCE() to read struct ublksrv_ctrl_cmd

In the Linux kernel, the following vulnerability has been resolved: ublk: use READONCE to read struct ublksrvctrlcmd struct ublksrvctrlcmd is part of the iouringsqe, which may lie in userspace-mapped memory. It's racy to access its fields with normal loads, as userspace may write to them...

CVE-2026-45957

CVE-2026-45957 documents a Linux kernel RCU bug: missing recursion protection in rcu_read_unlock() can cause a deadloop when softirq handling runs under ftrace, as shown in the call stack involving raise_softirq_irqoff() and rcu_read_unlock_special(). The issue was fixed by commits that adjust ir...

CVE-2026-45903 bpf: Fix memory access flags in helper prototypes

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix memory access flags in helper prototypes After commit 37cce22dbd51 "bpf: verifier: Refactor helper access type tracking", the verifier started relying on the access type flags in helper function prototypes to perform...