CVE-2026-90195

A flaw was found in the Linux kernel's RISC-V 64-bit RV64 Just-In-Time JIT compiler for Berkeley Packet Filter BPF programs. The RV64 JIT fails to perform proper sign-extension for signed 1-byte and 2-byte kernel function kfunc arguments. This oversight can lead to incorrect processing of data...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF and buffer leak in cifschecktrans2 for malformed secondary T2 CVE-2026-89637 In the Linux kernel, the following vulnerability has been resolved: ceph: bound copied dentry name length in NFS...

CVE-2026-98220

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix NULL sched deref in kfunc sub-sched error paths When the root scheduler has sub-scheds attached, the COMPAT kfunc wrappers scxbpfselectcpuand and scxbpfdsqinsertvtime refuse the call and report to @p's scheduler:...

CVE-2026-98220

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix NULL sched deref in kfunc sub-sched error paths When the root scheduler has sub-scheds attached, the COMPAT kfunc wrappers scxbpfselectcpuand and scxbpfdsqinsertvtime refuse the call and report to @p's scheduler:...

UBUNTU-CVE-2026-98220

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix NULL sched deref in kfunc sub-sched error paths When the root scheduler has sub-scheds attached, the COMPAT kfunc wrappers scxbpfselectcpuand and scxbpfdsqinsertvtime refuse the call and report to @p's scheduler:...

EUVD-2026-93148

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix NULL sched deref in kfunc sub-sched error paths When the root scheduler has sub-scheds attached, the COMPAT kfunc wrappers scxbpfselectcpuand and scxbpfdsqinsertvtime refuse the call and report to @p's scheduler:...

CVE-2026-98220 sched_ext: Fix NULL sched deref in kfunc sub-sched error paths

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix NULL sched deref in kfunc sub-sched error paths When the root scheduler has sub-scheds attached, the COMPAT kfunc wrappers scxbpfselectcpuand and scxbpfdsqinsertvtime refuse the call and report to @p's scheduler:...

CVE-2026-98220 sched_ext: Fix NULL sched deref in kfunc sub-sched error paths

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix NULL sched deref in kfunc sub-sched error paths When the root scheduler has sub-scheds attached, the COMPAT kfunc wrappers scxbpfselectcpuand and scxbpfdsqinsertvtime refuse the call and report to @p's scheduler:...

CVE-2026-98220

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix NULL sched deref in kfunc sub-sched error paths When the root scheduler has sub-scheds attached, the COMPAT kfunc wrappers scxbpfselectcpuand and scxbpfdsqinsertvtime refuse the call and report to @p's scheduler:...

PT-2026-106549

In the Linux kernel, the following vulnerability has been resolved: sched ext: Fix NULL sched deref in kfunc sub-sched error paths When the root scheduler has sub-scheds attached, the COMPAT kfunc wrappers scx bpf select cpu and and scx bpf dsq insert vtime refuse the call and report to @p's...

DEBIAN-CVE-2026-98037

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject untrusted allocated-object pointers When the final RCU read-side critical section ends, a local kptr is demoted to PTRUNTRUSTED but retains MEMALLOC. The pointer may be NULL or may refer to an object whose lifetime is...

CVE-2026-98037

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject untrusted allocated-object pointers When the final RCU read-side critical section ends, a local kptr is demoted to PTRUNTRUSTED but retains MEMALLOC. The pointer may be NULL or may refer to an object whose lifetime is...

UBUNTU-CVE-2026-98060

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject resilient lock operations in rbtree callbacks bpfrbtreeadd keeps parent and link pointers live across calls to the program-supplied comparison callback. The verifier therefore requires the root's lock to remain held...

CVE-2026-98060

The Linux kernel contains a vulnerability in the BPF subsystem where the resilient lock kfunc argument path fails to enforce a rule regarding rbtree callbacks . Specifically, because __bpf_rbtree_add() keeps parent and link pointers live during comparison callbacks, the root's lock must remain he...

CVE-2026-98037 bpf: Reject untrusted allocated-object pointers

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject untrusted allocated-object pointers When the final RCU read-side critical section ends, a local kptr is demoted to PTRUNTRUSTED but retains MEMALLOC. The pointer may be NULL or may refer to an object whose lifetime is...

CVE-2026-98037 bpf: Reject untrusted allocated-object pointers

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject untrusted allocated-object pointers When the final RCU read-side critical section ends, a local kptr is demoted to PTRUNTRUSTED but retains MEMALLOC. The pointer may be NULL or may refer to an object whose lifetime is...

CVE-2026-98037

The Linux kernel contains a vulnerability where a local kptr demoted to PTR_UNTRUSTED after an RCU read-side critical section ends retains the MEM_ALLOC flag. Because type_is_ptr_alloc_obj() recognizes any PTR_TO_BTF_ID with MEM_ALLOC as a live object, a kfunc can erroneously pass a NULL or stale...

EUVD-2026-86690

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject untrusted allocated-object pointers When the final RCU read-side critical section ends, a local kptr is demoted to PTRUNTRUSTED but retains MEMALLOC. The pointer may be NULL or may refer to an object whose lifetime is...

PT-2026-98700

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF subsystem where the type is ptr alloc obj function fails to reject PTR UNTRUSTED pointers. When a final RCU Read-Copy-Update read-side critical section ends, a...

CVE-2026-98037

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject untrusted allocated-object pointers When the final RCU read-side critical section ends, a local kptr is demoted to PTRUNTRUSTED but retains MEMALLOC. The pointer may be NULL or may refer to an object whose lifetime is...